Difference between revisions of "The HPS Run Wiki"

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==={{#switchtablink:Phone Numbers|'''Phone Numbers'''}}===
 
==={{#switchtablink:Phone Numbers|'''Phone Numbers'''}}===
 
===[http://www.jlab.org/Hall-B/hpsshifts Shift Schedule]===
 
===[http://www.jlab.org/Hall-B/hpsshifts Shift Schedule]===
−
===[https://logbooks.jlab.org/checklists/151 Shift-Taker's Checklist] <!--([[Media:hps_shift_checklist.pdf|old]]) -->===
+
===[https://logbooks.jlab.org/checklists/530 Shift-Taker's Checklist] <!--([[Media:hps_shift_checklist.pdf|old]]) -->===
 
===[https://accweb.acc.jlab.org/hco/readiness Hot Checkout]===
 
===[https://accweb.acc.jlab.org/hco/readiness Hot Checkout]===
 
===[https://bta Beam Time Accounting]===
 
===[https://bta Beam Time Accounting]===
 
===[https://docs.google.com/spreadsheets/d/1Ru4weeIOqtcpebiXKxFGCbPXGWXZF-W2JAolHcpvIFU/edit#gid=43855609 Run Spreadsheet 2019],[https://docs.google.com/spreadsheets/d/1X_TfOQyQBv9Ja1IQ5LYImk0sd00eN-d4zzkCwn-CSUM/edit#gid=43855609 2016], [https://docs.google.com/spreadsheets/d/1l1NurPpsmpgZKgr1qoQpLQBBLz1sszLz4xZF-So4xs8/edit#gid=43855609 2015]===
 
===[https://docs.google.com/spreadsheets/d/1Ru4weeIOqtcpebiXKxFGCbPXGWXZF-W2JAolHcpvIFU/edit#gid=43855609 Run Spreadsheet 2019],[https://docs.google.com/spreadsheets/d/1X_TfOQyQBv9Ja1IQ5LYImk0sd00eN-d4zzkCwn-CSUM/edit#gid=43855609 2016], [https://docs.google.com/spreadsheets/d/1l1NurPpsmpgZKgr1qoQpLQBBLz1sszLz4xZF-So4xs8/edit#gid=43855609 2015]===
 +
===[https://userweb.jlab.org/~vpk/HPS/Trigger/Run2019/HPS_trigger_versions.xlsx 2019 HPS production triggers descriptions]===
  
 
<!--* [[Media:hps_hallb_checklist.pdf|Hall-B Checklist Preparing for Beam]]-->
 
<!--* [[Media:hps_hallb_checklist.pdf|Hall-B Checklist Preparing for Beam]]-->
 
===[[HPS Upgrade ERR]]===
 
===[[HPS Upgrade ERR]]===
 +
===[https://www.jlab.org/Hall-B/run-web  COO, ESAD, RSAD] [[Media:HallB_RSAD_new_targets.pdf|Adendum to RSAD]] Things to read before shift. ===
 
| valign=top |
 
| valign=top |
  
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<!--* [https://github.com/JeffersonLab/HPS-NOTES/blob/master/SHIFT/Manuals/hps-daq-operation-manual/OPS-Manual-daq.pdf DAQ]-->
 
<!--* [https://github.com/JeffersonLab/HPS-NOTES/blob/master/SHIFT/Manuals/hps-daq-operation-manual/OPS-Manual-daq.pdf DAQ]-->
 
* [[Media:OPS_Manual_DAQ.pdf|DAQ]]<!--([https://clonwiki.jlab.org/wiki/index.php/DAQ/Online_Quick_Reference CLAS Wiki] ([[HPS DAQ Quick Reference|copy]]))-->
 
* [[Media:OPS_Manual_DAQ.pdf|DAQ]]<!--([https://clonwiki.jlab.org/wiki/index.php/DAQ/Online_Quick_Reference CLAS Wiki] ([[HPS DAQ Quick Reference|copy]]))-->
−
* [[Media:hps_beamline_manual.pdf|Beamline]]
+
* [[Media:hps_beamline_manual.pdf|Beamline]] and [[Media:B11006-dwg1.pdf|Beamline Drawings]]
 
**[[Media:chicane_controls.pdf|Turning Chicane ON/OFF]]
 
**[[Media:chicane_controls.pdf|Turning Chicane ON/OFF]]
 
**[[Media:chicane_settings.pdf|Chicane Settings]]
 
**[[Media:chicane_settings.pdf|Chicane Settings]]
Line 62: Line 64:
 
<font size=3>
 
<font size=3>
 
* [https://logbooks.jlab.org/book/elog MCC]
 
* [https://logbooks.jlab.org/book/elog MCC]
 +
** [https://cebaf.jlab.org/dtm/all-events DTM]
 
* [https://logbooks.jlab.org/book/halog Hall-A]
 
* [https://logbooks.jlab.org/book/halog Hall-A]
 
* [https://logbooks.jlab.org/book/hblog Hall-B]
 
* [https://logbooks.jlab.org/book/hblog Hall-B]
Line 87: Line 90:
 
= Short Term Schedule =
 
= Short Term Schedule =
 
<center><font size=+5>
 
<center><font size=+5>
−
''' HPS 2019 run, June X to August Y''''<br>
+
''' HPS (E12-11-006) 2019 run, June X to August Y''''<br>
 
''' Beam energy 4.5 GeV '''<br>
 
''' Beam energy 4.5 GeV '''<br>
 
''' Important: Document all your work in the logbook! '''<br>
 
''' Important: Document all your work in the logbook! '''<br>
−
[https://bluejeans.com/573852742 Bluejeans for Run Meetings on DAY and DAY at 2pm]
+
[https://bluejeans.com/794825703 Bluejeans for Run Meetings on DAY and DAY at 2pm]
 
</font></center>
 
</font></center>
  
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*  (757) 876-1789  
 
*  (757) 876-1789  
 
* 9 876-1789 from Counting Room
 
* 9 876-1789 from Counting Room
 +
 +
== <font color=red> Important instructions </font> ==
 +
=== <font color=red> * Turn OFF beam before target move!</font> ===
 +
=== <font color=red> * No access to the alcove if the chicane magnet beacon is ON.</font> ===
 +
Chicane magnets must be OFF if the hall is in Controlled access and access to the alcove is needed or when the hall is in Restricted access. If Chicane magnets are OFF, they can be energized only when the hall is in Power or Beam Permit, [https://wiki.jlab.org/hps-run/images/c/cd/Chicane_controls.pdf].
 +
=== <font color=red> * TURN OFF the chicane magnet if beam is not available due to a thunderstorm. Loss off power would seriously damage detectors.</font> ===
 +
 +
=== * [https://bta.acc.jlab.org Fill out BTA] hourly. Click "Load from EPICS" to fill the left side, then make sure numbers are correct. If needed edit the entry. ===
 +
NO ABUs or BANU if beam tune is in progress, make it all BNA with ER 100%. At the end of the shift save BTA to the logbook!
 +
=== * Please close any GUI that is not being used, e.g. close harp scanner after harp scan is done, close chicane, after chicane is ON, etc.  ===
 +
 +
=== * <b>For orbit lock positions on <font color=red>2H00(X=-0.5,Y=1.5) and on 2H02(X=-1.55,Y=-0.4). Use the 2.82 mm SVT collimator </font></b> ===
  
 
{| {{TableStyle1}}  
 
{| {{TableStyle1}}  
  
−
| valign=top width=50% |
+
| valign=top width=50% |am profile check once a day, at 9 am, using 2H02 and SVT wire harps
 +
 
 +
== Run Plan September 8 - 9, 2019 ==
 +
* Take production data with PROD66 (PROD67) / hps_v12_1.trg 20um target at 120 nA, HPS collimator 3.94 mm. Length of the run will be defined by the SVT bias currents, but no longer than 4 hours.
 +
** After run starts run the script "ben-trigger-structure.sh [CURRENT RUN NUMBER]" on any clonPCs and make sure pop-up graph shows continuous decanting distribution, does not have peaks (bumps). If peaks will show up, make a log entry with the graph.
 +
 
 +
* After beam is OFF, 8:00 AM on Monday, do the following:
 +
** turn OFF detectors (SVT, hodoscope, ECal), and retract SVT
 +
** turn off the chicane
 +
** ask for a restricted access 
 +
** start worming up SVT and FEBs
 +
 
 +
* Calibration runs before run ends: - DONE!
 +
*# <del>Random trigger run, 20 um W target, 120 nA beam current, trigger file "hps_v11_5_random_15kHz.trg" - 1x4 hour run </del>
 +
*# <del>Low luminosity run, 8 um target, 120 nA beam current, trigger "hps_v12_1.trg" - 2x4 hour runs </del>
 +
*# <del>SVT bias scan - 2 hours</del>
 +
*# <del>FEE run, 20 um target, 120 nA, trigger TBD (Nathan) - 1x2 hour run  </del>
 +
*# ??? <del>Run with different SVT positions, 20 um target, 120 nA beam current,  trigger "hps_v12_1.trg" - 8 hours</del>
 +
*# <del>Straight track run, setup with 2H02 wire, trigger "hps_v6_FEE_STRAIGHT.trg" - 1 hour, about 20M events </del>
 +
 
 +
==Every Shift:==
 +
# Follow run plan as outlined by RC
 +
# '''With any issue contact On-Call Experts or RC'''
 +
# Monitor carefully the SVT bias current (see below for details)
 +
# If any concern about beam stability, ask MCC if orbit locks are on (they should be ON).
 +
# Keep shift summary up to date in HBLOG. Record all that happens.
 +
#* Document any beam condition change and send scaler GUIs to HBLOG
 +
#* [https://bta.acc.jlab.org Fill out BTA] hourly.  Click "Load from EPICS" to automatically fill the left side then make sure numbers are correct. If needed edit the entry. Note: in the "Sift information" tab choose experiment <font color=blue> E12-11-006. </font>. At the end of the shift send BTA to teh logbook.
 +
#* Fill and submit the [https://logbooks.jlab.org/checklists/530 shift checklist in the logbook]
 +
 
 +
==Every Run:==
 +
# After "Go":  [https://logbooks.jlab.org/entry/3337784 Check SVT Occupancy]
 +
# Update the [https://docs.google.com/spreadsheets/d/1Ru4weeIOqtcpebiXKxFGCbPXGWXZF-W2JAolHcpvIFU/edit#gid=43855609 Run Spreadsheet]
 +
# Log screenshots of:
 +
#* main scaler_hps display
 +
#* ECAL FADC rate gui
 +
#* Trigger rate gui
 +
#* SVT and HODOSCOPE and ECAL Monitoring pdfs
 +
# Please watch Hybrid sync gui for correct status (currently three red lights) and the L0-3 and L4-6 occupancy plots for any empty plots beyond the expected three.
 +
 
 +
== SVT Bias Currents: ==
  
−
<!-- == Straight tracks run: June XX, 4:30 AM ==
+
Shifters must pay attention to the L0 bias currents. This is on both the SVT motor GUI and the main bias GUI. The bias currents will slowly creep up over the course of a run. When the bias current is between 15-20 uA for either L0 sensor, do the following:
−
* Chicane magnets are OFF
+
# Stop the run.
−
* Target is out
+
# Take the beam away, turn off SVT bias voltages, and wait 10 min.
−
* Current 50 nA
+
# Turn the bias voltages back on.
−
* Trigger "straight.trg"
+
# Check that the L0 bias currents have gone back down to ~4 uA
−
* Use 2H02 Harp as a target
+
# Bring back the beam and start a new run.
−
* Tune trigger rate to 15 kHz by 2H02 harp wire position
+
 
−
-->
+
Do not let the bias current exceed 20 uA. It takes about 4-5 hours for the bias currents to creep up to those values. Call SVT expert if unsure.
  
−
== Run Plan June 15 - 17, 2019 ==
+
== Harp Scan Procedure: ==
  
−
== Close the Hall at the beginning of the swing shift after everyone is out and MCC is ready to sweep ==
+
# During harp scans, SVT must be retracted (motors/SVT Positioners). HVs on SVT, ECal and Hodoscope should be OFF.  
−
* If after the sweep MCC is not ready to send a beam to Hall-B, keep the hall in control access for people still doing work on detectors.
+
# Halo counter FSDs (Downstream, HPS Up and HPS Down) are masked, Beam current 100 nA, Orbit locks running.
−
== <font color=red> !! Chicane magnets can be energized only when the hall is in Beam Permit, [https://wiki.jlab.org/hps-run/images/c/cd/Chicane_controls.pdf]. Chicane magnets must be off if the hall is in Restricted or in Controlled access. </font>==
+
# Perform the HARP scan, log the results.
−
== Establish beam to the tagger dump ==
+
# If the beam looks different, you should call beam-line on-call that will advise on the next steps.
−
# See "General Instructions" on the right for details
+
# If the beam looks different, perform SVT wire scan, the target needs to be retracted as well for this one.
−
# Log screenshots of the ECal and main HPS scaler screens for reference when the beam is established at the tagger
+
#* '''IMPORTANT, use the bottom SVT wire scan only.''' Top SVT wire is broken.
−
== Bring beam to FC (for the first time this must be done with beamline expert): ==
 
−
# '''<font color=red> Important Note: Before bringing beams to FC, make sure that the SVT, Hodoscope, and ECal are off, SVT is fully retracted, the target is out. If this is a first time that beam goes to FC after machine settings have changed than the SVT protection collimator position relative to the beam trajectory is unknown and therefore HPS protection collimator must be retracted.</font>'''
 
−
# '''Ask for 10 nA beam. When the beam sent to FC, it should be clearly visible on the downstream viewer. The halo counter rates downstream of the HPS, SHPS-SC, and HPS-T should be more than10s of kHz. All upstream halo counters must be in the range of <100Hz.'''
 
−
#'''First find the position of the collimator. To do so run collimator wire scan. The current position of the wire for beam center is 4.41, if measurement finds beam center at a different position use the expert GUI to set the 3.94 mm SVT collimator to the right poition (current position is 6.212, which means the distance between the wire and the center of the 3.94 mm hole is 1.802). After collimator is in place all beam studies should be done in these conditions with beam currents of 30 nA.'''
 
−
<!--# '''Note: in order to have reliable readings on two important for HPS BPMs, 2H00 and 2H02, beam current should be >30 nA. Before moving forward with 2H02A harp scans and beam profile tune, make sure orbit lock is engaged at positions on 2H00(X=0.00,Y=0.00) and on 2H02(X=-1.1,Y=-1.). '''-->
 
−
# Establish beam to the Faraday cup following the "General Guidelines" on the right. The required beam profile at 2H02A harp is X-width <~0.05 mm, Y-width <~ 0.050 mm, and the tilt angle <15 degrees. The spot on the Chromax viewer should be close to x=-2mm, y=-5mm. Also, make sure that Harp scans reproduce recent mean values of Beam X and Y [https://logbooks.jlab.org/entry/3388464]. Vertically should be within 50 um match, horizontally 300 um should be enough.
 
−
# Restore ECal and Hodoscope
 
−
#* Turn on ECal
 
−
#* Record FADC rates with and without the 4 um target at 50 nA.
 
−
* Call ECal expert to perform pedestal run
 
−
#* Trigger/DAQ expert checks trigger rates, DAQ, and deadtime with 50 nA beam on 4 um target. Record:
 
−
#*# ''main scaler screen''
 
−
#*# ''ecal scaler gui''
 
−
#*# ''trigger rate gui'' (requires DAQ Prestarted with <tt>v8_200nA.trg</tt>)
 
−
#*#* Live time should be >~90%
 
−
#*#* Total Trigger rate should be ~17 kHz.
 
−
<!--# SVT Setting (call SVT expert in)
 
−
#* If beams are stable, SVT expert moves SVT to 1.0 and then 0.5 mm
 
−
#* record occupancy, latency, data size, and deadtimes
 
−
# Record Production Data with 4um target @ 200 nA
 
−
#* Use Configuration <tt>HPS35</tt> and Trigger <tt>v8_200nA.trg</tt>.  
 
−
#* 150 Million events per run
 
−
#* Be sure to follow General Guidelines, especially instructions for '''Every Shift''' and '''Every Run''' below.
 
−
#* Monitor and record BPM 2H02 history carefully to insure stable beams.  
 
−
#** If beams are not stable, get MCC to fix it!
 
−
#* Document any beam condition change and send scaler GUIs to HBLOG-->
 
−
<!-- # Special (to be scheduled by RC)
 
−
#* <strike>3.93 mm collimator
 
−
#** Scan to center it (update epics records)
 
−
#** Empty target run to compare rates with 2.82 mm collimator
 
−
#* Quick no-collimator rate measurement</strike>
 
−
-->
 
  
 
=== Important Notes: ===
 
=== Important Notes: ===
 +
# When re-establishing beam to Hall B after a >1h long downtime follow "General Guidelines" on the right and the Beamline Procedures and Manual on the shift documentation page. Do not hesitate to call the beamline expert.
 
# '''Do not run more than 60 minutes above 30 nA without the beam blocker in front of Faraday cup. Put beam blocker in for long running at high currents.'''
 
# '''Do not run more than 60 minutes above 30 nA without the beam blocker in front of Faraday cup. Put beam blocker in for long running at high currents.'''
−
 
+
# ''' For SVT Operations:'''
−
==[[SVT RECOVERY PROCDURES]]==
+
#* From the time beam first comes into the hall until it is being delivered to the Faraday cup with orbit locks on for a known good trajectory, the SVT should be completely off. This is especially important during tuning to the tagger dump, when mis-steering of the beam can result in very high hard neutron backgrounds.
 +
#*Once stable beam is being delivered to the Faraday cup with orbit locks on for a known good trajectory, and the SVT collimator is in position, the FEBs and hybrids can be powered and operated, but the HV bias for the sensors must remain off.
 +
#*In order to turn on the HV, the FSD system must be functioning so a beam excursion that hits the collimator will quickly trip off the beam.
  
 
| valign=top |
 
| valign=top |
Line 163: Line 189:
 
==General Instructions==
 
==General Instructions==
  
−
===DAQ RECOVERY===
+
<!--===DAQ RECOVERY===
 
If DAQ crashed/broken:
 
If DAQ crashed/broken:
−
# For every daq crash login into clondaq3 as a clasrun then run the following command  
+
# For every DAQ crash login into clondaq3 as a clasrun then run the following command  
 
#* clasrun@clondaq3:clasrun> <font color='blue'> save_DAQ_logs.pl</font> (See [https://logbooks.jlab.org/files/2016/04/3397123/DAQ_DPM_Crash_0.png])
 
#* clasrun@clondaq3:clasrun> <font color='blue'> save_DAQ_logs.pl</font> (See [https://logbooks.jlab.org/files/2016/04/3397123/DAQ_DPM_Crash_0.png])
 
# [[HPS DAQ Reboot Procedure|Reboot DAQ completely.]].
 
# [[HPS DAQ Reboot Procedure|Reboot DAQ completely.]].
−
# If the procedure fails to restore DAQ, call Sergey (DAQ on call) without any further disturbing the DAQ status.
+
# If the procedure fails to restore DAQ, call Sergey (DAQ on call) without any further disturbing the DAQ status.-->
  
 
===Establishing Physics Quality Beam for HPS:===
 
===Establishing Physics Quality Beam for HPS:===
−
# <font color='red'>'''Make sure SVT is retracted and both SVT and ECAL are OFF.'''</font>
+
# <font color='red'>'''Make sure SVT is retracted and detectors, SVT, Hodoscope and ECAL are OFF.'''</font>
−
# <b>First send beam to the tagger dump:</b>
+
# <b>If the beam was off for 4 hours or more or in case of troublesome beam tuning, send a beam to the tagger dump:</b>
 
#* Check that beam type is set to "Photon" (<tt>HPS_EPICS->Beam->BTA</tt>).
 
#* Check that beam type is set to "Photon" (<tt>HPS_EPICS->Beam->BTA</tt>).
 
#* Position "Blank" on the beam for the Hall-B collimator   
 
#* Position "Blank" on the beam for the Hall-B collimator   
Line 178: Line 204:
 
#* Check the beam position on the tagger viewer, it should be approximately in the center of the screen
 
#* Check the beam position on the tagger viewer, it should be approximately in the center of the screen
 
#* Follow instructions under "Procedures" on the documentation tab for "Beamline"[https://wiki.jlab.org/hps-run/images/e/e6/HPS_beamline_comm.pdf]. To tune the beam on tagger dump and perform harp scans beam current should be <10 nA.
 
#* Follow instructions under "Procedures" on the documentation tab for "Beamline"[https://wiki.jlab.org/hps-run/images/e/e6/HPS_beamline_comm.pdf]. To tune the beam on tagger dump and perform harp scans beam current should be <10 nA.
−
#* Check profile using 2C21 and tagger harp scans, and compare the positions and widths with previous scans ([https://logbooks.jlab.org/entry/3388429],[https://logbooks.jlab.org/entry/3388441])
+
#* Check profile using 2C21 and tagger (2C24) harp scans and compare the positions and widths with previous scans ([https://logbooks.jlab.org/entry/3720088],[https://logbooks.jlab.org/entry/3720089])
 
#** Positions on both harps should be within 1mm
 
#** Positions on both harps should be within 1mm
−
#** Width on 2C21 should be <~0.1+/-0.05 mm
+
#** Width on 2C21 should be <~0.2+/-0.05 mm
−
#** Width on tagger harp (2C24) <~0.35 +/- 0.1mm
+
#** Width on tagger harp (2C24) <~0.5 +/- 0.1mm
−
#* Halo counters UPS-L/R and TAG-L/T/T2 should be ~few Hz/nA [https://logbooks.jlab.org/entry/3376736]
+
#* Background levels on harp scan are comparable to those of previous scans.
 +
<!--#* Halo counters UPS-L/R and TAG-L/T/T2 should be ~few Hz/nA [https://logbooks.jlab.org/entry/3376736]-->
 
<!-- # <b> While MCC degausses the tagger magnet, verify that chicane is ON</b>  
 
<!-- # <b> While MCC degausses the tagger magnet, verify that chicane is ON</b>  
 
#* If not, turn it on.  Strictly follow the procedure in the beam line manual!-->
 
#* If not, turn it on.  Strictly follow the procedure in the beam line manual!-->
−
# ''' Before sending beam to the Faraday cup '''
+
# ''' Before sending a beam to the Faraday cup '''
−
#* Check that chicane GUI says "Chicane Ready"
+
#* If HPS chicane must be ON, make sure that chicane GUI says "Chicane Ready"
−
#* ''' Check that SVT protection collimator is ON '''
+
#* Set Hall-B Collimator to 20 mm.
−
#* HPS target is '''OUT''' and ECAL HV is '''OFF'''
+
#* ''' Check that SVT protection collimator is ON THE BEAM (2.82 mm). If the beam was off for more than 4HPS hours or the configuration has changed, start with 3.94 mm'''
−
#* SVT is OUT (position=0.000 mm in main hps scaler screen) and HV is off (all red/green indicators RED in SVT bias GUI)
+
#* HPS target is '''OUT''' and Hodoscope and ECAL HVs are '''OFF'''
 +
#* SVT is OUT (position=0.000 mm on the main HPS scaler GUI) and bias HV is off (all red/green indicators RED in SVT bias GUI)
 
#* If any uncertainty, page the experts
 
#* If any uncertainty, page the experts
−
#* The first time sending beam to the Faraday cup after the hall is closed, page the SVT expert.
+
#* Pay attention into following corrector values: 2C22H, 2C23V, 2H00H, 2H00V, Compare them to ones that are in [https://logbooks.jlab.org/entry/3689166]. Make sure their values don't differ more than 100%. If there is such difference, tell MCC about this.
−
#* Pay attention into following corrector values: 2C22H, 2C23V, 2H00H, 2H00V, Compare them to ones that are in [https://logbooks.jlab.org/entry/3394957]. Make sure their values doesn't differ more than 100%. If there is a such difference, tell MCC about this.
 
 
# ''' Send beam to the Faraday cup '''
 
# ''' Send beam to the Faraday cup '''
−
#* If the beam optics is correct, then you should immediately see the beam spot on the Downstream Viewer and beam position and on 2H00 and 2H02 BPMS.
+
#* If the beam optics is correct, then you should immediately see the beam spot on the Downstream Viewer and on the 2H00 and 2H02 BPMS.
−
#* If you don't see it immediately, and rates on halo counters are more than 100 Khz, then ask MCC, to change to pulsed (tune mode) beam, and ask to put corrector values. At this point don't accept any CW beam, until beam spot is visible on Downstream Viewer.
+
#* If you don't see it immediately, and rates on halo counters are more than 100 Khz, then ask MCC, to change to pulsed (tune mode) beam, and ask to restore corrector values. At this point don't accept any CW beam, until beam spot is visible on Downstream Viewer.
−
#* If MCC operator is not able to tune the beam more than 30 minutes, then please notify RC
+
#* If MCC operator is not able to tune the beam more than 15 minutes, then notify RC!
−
<!-- #* Follow the instructions under "Procedures" on the documentation tab for "Beamline"[https://wiki.jlab.org/hps-run/images/e/e6/HPS_beamline_comm.pdf] to establish beam to the electron dump. -->
+
#* Follow the instructions under "Procedures" on the documentation tab for "Beamline"[https://wiki.jlab.org/hps-run/images/e/e6/HPS_beamline_comm.pdf] to establish beam to the electron dump.  
 
<b> Note: in order to have reliable readings on two important for HPS BPMs, 2H00 and 2H02, beam current should be >30 nA.</b>
 
<b> Note: in order to have reliable readings on two important for HPS BPMs, 2H00 and 2H02, beam current should be >30 nA.</b>
−
#* Ask MCC to establish 30 nA beam with <font color=red>HPS</font> orbit locks on (We need '''HallBHPSOrb''' not '''HallBOrb''' configuration). <b>For orbit lock positions on <font color=red>2H00(X=0.00,Y=0.00) and on 2H02(X=-1.00,Y=-0.85). Use the 2.82 mm SVT collimator. </font></b>.  
+
#* Ask MCC to establish 30 nA beam with <font color=red>HPS</font> orbit locks on (We need '''HallBHPSOrb''' not '''HallBOrb''' configuration). <b>For orbit lock positions on <font color=red>2H00(X=1.0,Y=1.5) and on 2H02(X=-1.7,Y=0.3). Use the 2.82 mm SVT collimator. (positions changed 6/25/19 by mg)</font></b>.  
−
#* Tune beam profile at HPS using measured widths on 2H02A harp. The required beam profile at 2H02A harp is: X-width <~0.25 mm, Y-width <~ 0.10 mm for commissioning, and Y-width ~0.05 for physics running, and the tilt angle <15 degrees.  
+
#* Tune beam profile at HPS using measured widths on 2H01A and 2H02A harps. The required beam profile at 2H02A harp is: X-width <~0.1 mm, Y-width <~ 0.05 mm. Beam profile using 2H01A and 2H02A harps with previous scans ([https://logbooks.jlab.org/entry/3696650],[https://logbooks.jlab.org/entry/3720218]) to compare.
 
#* Check and log the beam spot on chromax viewer
 
#* Check and log the beam spot on chromax viewer
−
#* The halo counter rates before HPS must be low:  
+
#* The halo counter rates before HPS must be very low:  
−
#*# UPS-L and UPS-R few Hz/nA,  
+
#*# Upstream Left and Right, and the tagger counters few 10's of Hz,  
−
#*# The tagger counters should count less than Hz/nA and downstream counters should count ~Hz/nA
+
#*# Downstream counters should count <Hz/nA
−
#*# The halo counter rates on HPS, HPS-L/R/T/SC, depends on the collimator and HPS chicane settings, but should not be more than 100 Hz/nA [https://logbooks.jlab.org/entry/3328991]
+
#*# The halo counter rates on HPS, HPS-L/R/T/SC, depends on the collimator and HPS chicane settings, but should not be more than 50 Hz/nA [https://logbooks.jlab.org/entry/3696813]
−
#* Positions on BPMs must be close to what they were before [https://logbooks.jlab.org/entry/3376894]
+
#* Positions on BPMs must be close to what they were before [https://logbooks.jlab.org/entry/3696813]
−
#* Once all the above is achieved, turn ECAL HV '''ON''' to monitor and log ECal rates
+
#* When everything is stable, perform SVT wire scan and compare with the nominal [https://logbooks.jlab.org/entry/3720219]
−
#* Insert the 4um W target without turning off the beam.
+
#* Once all the above is achieved, turn ECAL and Hodoscope HV '''ON''' to monitor and log ECal rates
 +
#* Insert the 20 um W target (turn beam off first).
 
# '''Before accepting beam, make sure all the previous conditions are met. Always read previous log entries, compare settings of BPMs and correctors with previous settings using scaler_hps GUI.'''
 
# '''Before accepting beam, make sure all the previous conditions are met. Always read previous log entries, compare settings of BPMs and correctors with previous settings using scaler_hps GUI.'''
−
 
−
=== Setting up the FSD threshold ===
 
−
*When you are about to calculate FSD limit, it means the beam is already established, and the target is in.
 
−
* To calculate the FSD threshold run the folloing executable
 
−
hpsrun@clonpc11> /home/hpsrun/scripts/FSD/Calc_FSD_Threshold.exe
 
−
* Note we use 1 ms integration time, and want 5.5 sigma away from the average rates
 
−
* Allowed tolerable rate increase default is 15%, if that causes many trips, then contact RC, he might suggest to increase that number
 
−
* <font color='red'> Make sure if MCC operator set the FSD limit and integration time correctly </font>
 
  
  
Line 223: Line 243:
 
===SVT Instructions:===
 
===SVT Instructions:===
 
#<font color='red'>Turn SVT completely OFF (Bias, FEB, Flange) when entering Beam Permit.</font>
 
#<font color='red'>Turn SVT completely OFF (Bias, FEB, Flange) when entering Beam Permit.</font>
−
# Before sending beam to Faraday cup, verify (and page SVT expert if otherwise):
+
# Before sending a beam to Faraday cup, verify (and page SVT expert if otherwise):
 
#* SVT should be open: "Position" at 0.000 mm in the main scaler_hps GUI
 
#* SVT should be open: "Position" at 0.000 mm in the main scaler_hps GUI
 
#* SVT HV is off: all red/green indicators RED in SVT bias GUI
 
#* SVT HV is off: all red/green indicators RED in SVT bias GUI
−
# The first time sending beam to the Faraday cup after the hall is closed, page the SVT expert.
+
# The first time sending a beam to the Faraday cup after the hall is closed, page the SVT expert.
 
-->
 
-->
 
<!--
 
<!--
Line 244: Line 264:
 
#* If it was an HPS halo counter trip, MCC will not restore the beam until we request it. Inform MCC that we will get back to them when we are ready for beam.
 
#* If it was an HPS halo counter trip, MCC will not restore the beam until we request it. Inform MCC that we will get back to them when we are ready for beam.
 
#*# Retract the SVT to its 1.5 mm stations, both top and bottom.  
 
#*# Retract the SVT to its 1.5 mm stations, both top and bottom.  
−
#*# Tell MCC we are ready for beam.
+
#*# Tell MCC we are ready for the beam.
 
#*# Once the beam is restored, confirm that both 2H02 beam positions x and y are as desired and halo counter rates are as expected.
 
#*# Once the beam is restored, confirm that both 2H02 beam positions x and y are as desired and halo counter rates are as expected.
−
#*# Once beam is stable for ~1 minute, restore SVT HV and the SVT to its nominal position.
+
#*# Once the beam is stable for ~1 minute, restore SVT HV and the SVT to its nominal position.
 
#*# Resume data taking.
 
#*# Resume data taking.
 
-->
 
-->
Line 253: Line 273:
 
!align=left width=50% style="background:#eeeeee;"|
 
!align=left width=50% style="background:#eeeeee;"|
  
−
==Every Shift:==
 
−
# Follow run plan as outlined by RC
 
−
# If any concern about beam stability, ask MCC if orbit locks are on (they should be).
 
−
# Keep shift summary up to date in HBLOG. Record all that happens.
 
−
#* Check on white board all scalers, strip charts and monitoring plots that need to be logged regularly
 
−
#* Document any beam condition change and send scaler GUIs to HBLOG
 
−
#* [https://bta.acc.jlab.org Fill out BTA] hourly.  Click "Load from EPICS" to automatically fill the left side.
 
−
#* Fill and submit the [https://logbooks.jlab.org/checklists/151 shift checklist in the logbook]
 
−
# Perform 2H02A harp scan once per shift or when beam conditions have changed, based on beam monitors (BPMs, halo rates, beam-viewer). During harp scans SVT must be retracted and HV should be OFF.
 
−
# '''With any issue contact On-Call Experts or RC'''
 
−
 
−
| valign=top style="background:#eeeeee;"|
 
  
−
==Every Run:==
 
−
# After "Go":  [https://logbooks.jlab.org/entry/3337784 Check SVT Occupancy]
 
−
# Update the <strike>[https://docs.google.com/spreadsheets/d/1X_TfOQyQBv9Ja1IQ5LYImk0sd00eN-d4zzkCwn-CSUM/edit#gid=43855609 Run Spreadsheet]</strike>
 
−
# Log screenshots of:
 
−
#* main scaler_hps display
 
−
#* ECAL FADC rate gui
 
−
#* Trigger rate gui
 
−
#* SVT and ECAL Monitoring pdfs
 
−
#* Put the output of the following command <font color=red>hpsTiStatus.sh </font>into the logbook
 
−
# <strike>After each run execute this script (replace RunNb by the actual run number):
 
−
#* <tt> hps2tapeAndDelete.sh RunNb</tt></strike>
 
−
# All trigger files to be used by shifters are in <tt>HPS/Run2016</tt>
 
  
 
|}
 
|}
−
 
  
 
<!--#######################################  LONG TERM  #################################################-->
 
<!--#######################################  LONG TERM  #################################################-->
Line 295: Line 290:
 
Meeting ID: 794825703
 
Meeting ID: 794825703
 
   
 
   
−
 
+
[https://plot.ly/~maurik/31/#/ Status of the run]
  
 
{| {{TableStyle1}}
 
{| {{TableStyle1}}
Line 308: Line 303:
 
-->
 
-->
 
{| class=wikitable
 
{| class=wikitable
−
!width=250 colspan=2 style="background:#ffdead;"| '''Run Coordinator'''
+
!width=300 colspan=2 style="background:#ffdead;"| '''Run Coordinator'''
 
|-
 
|-
 
| June 12 - June 19  || Stepan Stepanyan
 
| June 12 - June 19  || Stepan Stepanyan
Line 324: Line 319:
 
| July 24 - August 7 || Maurik Holtrop
 
| July 24 - August 7 || Maurik Holtrop
 
|-
 
|-
−
| August 7 - August 14 || Raphael Dupre
+
| August 7 - August 19 || Raphael Dupre
 
|-
 
|-
−
| August 14 - August 21 || Stepan Stepanyan
+
| August 19 - August 21 || Stepan Stepanyan
 
|}
 
|}
  
 
{| class=wikitable
 
{| class=wikitable
−
!width=250 colspan=2 style="background:#ffdead;"| '''Physics Division Liaison'''
+
!width=300 colspan=2 style="background:#ffdead;"| '''Physics Division Liaison'''
 
|-
 
|-
 
|  HPS-2019 || Valery Kubarovsky
 
|  HPS-2019 || Valery Kubarovsky
Line 338: Line 333:
  
 
{| class=wikitable
 
{| class=wikitable
−
!width=250 colspan=2 style="background:#ffdead;" | '''Beamline'''
+
!width=300 colspan=2 style="background:#ffdead;" | '''Beamline'''
 
|-
 
|-
 
| June 12 - June 19  || Rafo Paremuzyan
 
| June 12 - June 19  || Rafo Paremuzyan
Line 348: Line 343:
  
 
{| class=wikitable
 
{| class=wikitable
−
!width=250 colspan=2 style="background:#ffdead;" | '''SlowControls'''
+
!width=300 colspan=2 style="background:#ffdead;" | '''SlowControls'''
 
|-
 
|-
 
| June 12 - Augus 19  || Nathan Baltzell
 
| June 12 - Augus 19  || Nathan Baltzell
Line 354: Line 349:
 
| July X - July Y || -->
 
| July X - July Y || -->
 
|}
 
|}
−
{| class=wikitable
 
−
!width=250 colspan=2 style="background:#ffdead;" | '''DAQ'''
 
−
|-
 
−
| 24/7/365 || Sergey Boyarinov
 
−
|}
 
−
<!--Michel Garcon:  Michel Gar&ccedil;on-->
 
  
−
| valign=top |
 
 
{| class=wikitable
 
{| class=wikitable
−
!width=250 colspan=2 style="background:#ffdead;" | '''ECAL/HODOSCOPE'''
+
!width=300 colspan=2 style="background:#ffdead;" | '''ECAL/HODOSCOPE'''
 
|-
 
|-
 
| June 12 - July 1 || Nathan Baltzell
 
| June 12 - July 1 || Nathan Baltzell
Line 381: Line 369:
  
 
{| class=wikitable
 
{| class=wikitable
−
!width=250 colspan=2 style="background:#ffdead;" | '''SVT'''
+
!width=300 colspan=2 style="background:#ffdead;" | '''DAQ'''
 +
|-
 +
| 24/7/365 || Sergey Boyarinov
 +
|}
 +
<!--Michel Garcon:  Michel Gar&ccedil;on-->
 +
 
 +
| valign=top |
 +
 
 +
{| class=wikitable
 +
!width=300 colspan=2 style="background:#ffdead;" | '''SVT'''
 
|-
 
|-
−
| XXX - YYY  || Cameron Bravo
+
| June 01-05 || Tim Nelson
 
|-
 
|-
−
| || Matt Solt
+
| June 01-07 || Cameron Bravo
 +
|-
 +
| June 07-11 || Omar Moreno
 +
|-
 +
| June 12 || Omar Moreno and Matt Solt
 +
|-
 +
| June 12-19 || Vitaliy Fadeyev
 +
|-
 +
| June 13-18 || Matt Solt
 +
|-
 +
| June 19-26 || Omar Moreno
 +
|-
 +
| June 26-July 03 || Cameron Bravo
 +
|-
 +
| July 03-10 || Tim Nelson
 +
|-
 +
| July 10-17 || Omar Moreno
 +
|-
 +
| July 17-24 || Cameron Bravo
 +
|-
 +
| July 24-31 || Tim Nelson
 +
|-
 +
| July 31-August 07 || Matt Graham
 +
|-
 +
| August 07-14 || Matt Solt
 +
|-
 +
| August 14-21 || Matt Solt
 
|}
 
|}
  
Line 422: Line 445:
 
| valign=top width=400|
 
| valign=top width=400|
 
<b>Accelerator:</b>
 
<b>Accelerator:</b>
−
* [http://epicsweb.jlab.org Accelerator EPICS-WEB]
+
* [http://epicsweb.jlab.org Accelerator EPICS-WEB] (offsite access)
 +
* [https://epicsweb.jlab.org/wedm/screen?edl=/cs/opshome/edm/wall/Status_W_Accel.edl Accelerator Status Page]
 +
* [https://hallbopi.jlab.org/webopi3.3/w?opi=https://hallbopi.jlab.org/opis/detectors/HPS/scaler_hps.opi HPS EPICS-WEB] (offsite access)
 
* [http://clasweb.jlab.org/cgi-bin/HALL_ABC/hall_abc_new.pl End Station Status]
 
* [http://clasweb.jlab.org/cgi-bin/HALL_ABC/hall_abc_new.pl End Station Status]
 
* [http://www.jlab.org/accel/ops_orientation/useful.html Accelerator Ops 1]
 
* [http://www.jlab.org/accel/ops_orientation/useful.html Accelerator Ops 1]
Line 436: Line 461:
 
| valign=top width=400|
 
| valign=top width=400|
 
<b>Online & Offline:</b>
 
<b>Online & Offline:</b>
 +
* [http://hpsweb.jlab.org/dqm DQM]
 
* [[Monitoring Gui]]
 
* [[Monitoring Gui]]
 
* [http://hpsweb.jlab.org/hps-run-webapp/ Run Database]
 
* [http://hpsweb.jlab.org/hps-run-webapp/ Run Database]
 +
* [https://clasweb.jlab.org/rcdb Run Conditions Database]
 
* [http://hpsweb.jlab.org/datacat/display/browser HPS Data Catalog]
 
* [http://hpsweb.jlab.org/datacat/display/browser HPS Data Catalog]
 
* [http://srs.slac.stanford.edu/hudson/view/HPS/job/hps-modules/ Jenkins] / [http://srs.slac.stanford.edu/nexus/index.html#nexus-search;quick~hps-distribution Nexus] / [http://java.freehep.org/svn/repos/hps/list/java/trunk/ SVN]
 
* [http://srs.slac.stanford.edu/hudson/view/HPS/job/hps-modules/ Jenkins] / [http://srs.slac.stanford.edu/nexus/index.html#nexus-search;quick~hps-distribution Nexus] / [http://java.freehep.org/svn/repos/hps/list/java/trunk/ SVN]
Line 493: Line 520:
 
| Hall-B Forward Carriage || 5371
 
| Hall-B Forward Carriage || 5371
 
|-
 
|-
−
| Hall-B Counting Room || 5126, 5244, 5246, 5247
+
| Hall-B Counting Room || 5244(Shift1), 5245(Shift2)
 +
|-
 +
| Hall-B Counting Room || 5247(Expert), 5502(Target)
 +
|-
 +
| Hall-B Counting Room || 5246(RC1), 5126(RC2)
 
|-
 
|-
 
|style="border-bottom:3px solid gray;"| Hall-B Gas Shed ||style="border-bottom:3px solid gray;"| 7115
 
|style="border-bottom:3px solid gray;"| Hall-B Gas Shed ||style="border-bottom:3px solid gray;"| 7115

Revision as of 10:55, 10 September 2019


[edit]

HPS (E12-11-006) 2019 run, June X to August Y'
Beam energy 4.5 GeV
Important: Document all your work in the logbook!
Bluejeans for Run Meetings on DAY and DAY at 2pm

RC: Stepan Stepanyan

  • (757) 575-7540
  • 9 575 7540 from Counting Room

PDL: Valery Kubarovsky

  • (757) 876-1789
  • 9 876-1789 from Counting Room

Important instructions

* Turn OFF beam before target move!

* No access to the alcove if the chicane magnet beacon is ON.

Chicane magnets must be OFF if the hall is in Controlled access and access to the alcove is needed or when the hall is in Restricted access. If Chicane magnets are OFF, they can be energized only when the hall is in Power or Beam Permit, [1].

* TURN OFF the chicane magnet if beam is not available due to a thunderstorm. Loss off power would seriously damage detectors.

* Fill out BTA hourly. Click "Load from EPICS" to fill the left side, then make sure numbers are correct. If needed edit the entry.

NO ABUs or BANU if beam tune is in progress, make it all BNA with ER 100%. At the end of the shift save BTA to the logbook!

* Please close any GUI that is not being used, e.g. close harp scanner after harp scan is done, close chicane, after chicane is ON, etc.

* For orbit lock positions on 2H00(X=-0.5,Y=1.5) and on 2H02(X=-1.55,Y=-0.4). Use the 2.82 mm SVT collimator

am profile check once a day, at 9 am, using 2H02 and SVT wire harps

Run Plan September 8 - 9, 2019

  • Take production data with PROD66 (PROD67) / hps_v12_1.trg 20um target at 120 nA, HPS collimator 3.94 mm. Length of the run will be defined by the SVT bias currents, but no longer than 4 hours.
    • After run starts run the script "ben-trigger-structure.sh [CURRENT RUN NUMBER]" on any clonPCs and make sure pop-up graph shows continuous decanting distribution, does not have peaks (bumps). If peaks will show up, make a log entry with the graph.
  • After beam is OFF, 8:00 AM on Monday, do the following:
    • turn OFF detectors (SVT, hodoscope, ECal), and retract SVT
    • turn off the chicane
    • ask for a restricted access
    • start worming up SVT and FEBs
  • Calibration runs before run ends: - DONE!
    1. Random trigger run, 20 um W target, 120 nA beam current, trigger file "hps_v11_5_random_15kHz.trg" - 1x4 hour run
    2. Low luminosity run, 8 um target, 120 nA beam current, trigger "hps_v12_1.trg" - 2x4 hour runs
    3. SVT bias scan - 2 hours
    4. FEE run, 20 um target, 120 nA, trigger TBD (Nathan) - 1x2 hour run
    5. ??? Run with different SVT positions, 20 um target, 120 nA beam current, trigger "hps_v12_1.trg" - 8 hours
    6. Straight track run, setup with 2H02 wire, trigger "hps_v6_FEE_STRAIGHT.trg" - 1 hour, about 20M events

Every Shift:

  1. Follow run plan as outlined by RC
  2. With any issue contact On-Call Experts or RC
  3. Monitor carefully the SVT bias current (see below for details)
  4. If any concern about beam stability, ask MCC if orbit locks are on (they should be ON).
  5. Keep shift summary up to date in HBLOG. Record all that happens.
    • Document any beam condition change and send scaler GUIs to HBLOG
    • Fill out BTA hourly. Click "Load from EPICS" to automatically fill the left side then make sure numbers are correct. If needed edit the entry. Note: in the "Sift information" tab choose experiment E12-11-006. . At the end of the shift send BTA to teh logbook.
    • Fill and submit the shift checklist in the logbook

Every Run:

  1. After "Go": Check SVT Occupancy
  2. Update the Run Spreadsheet
  3. Log screenshots of:
    • main scaler_hps display
    • ECAL FADC rate gui
    • Trigger rate gui
    • SVT and HODOSCOPE and ECAL Monitoring pdfs
  4. Please watch Hybrid sync gui for correct status (currently three red lights) and the L0-3 and L4-6 occupancy plots for any empty plots beyond the expected three.

SVT Bias Currents:

Shifters must pay attention to the L0 bias currents. This is on both the SVT motor GUI and the main bias GUI. The bias currents will slowly creep up over the course of a run. When the bias current is between 15-20 uA for either L0 sensor, do the following:

  1. Stop the run.
  2. Take the beam away, turn off SVT bias voltages, and wait 10 min.
  3. Turn the bias voltages back on.
  4. Check that the L0 bias currents have gone back down to ~4 uA
  5. Bring back the beam and start a new run.

Do not let the bias current exceed 20 uA. It takes about 4-5 hours for the bias currents to creep up to those values. Call SVT expert if unsure.

Harp Scan Procedure:

  1. During harp scans, SVT must be retracted (motors/SVT Positioners). HVs on SVT, ECal and Hodoscope should be OFF.
  2. Halo counter FSDs (Downstream, HPS Up and HPS Down) are masked, Beam current 100 nA, Orbit locks running.
  3. Perform the HARP scan, log the results.
  4. If the beam looks different, you should call beam-line on-call that will advise on the next steps.
  5. If the beam looks different, perform SVT wire scan, the target needs to be retracted as well for this one.
    • IMPORTANT, use the bottom SVT wire scan only. Top SVT wire is broken.

Important Notes:

  1. When re-establishing beam to Hall B after a >1h long downtime follow "General Guidelines" on the right and the Beamline Procedures and Manual on the shift documentation page. Do not hesitate to call the beamline expert.
  2. Do not run more than 60 minutes above 30 nA without the beam blocker in front of Faraday cup. Put beam blocker in for long running at high currents.
  3. For SVT Operations:
    • From the time beam first comes into the hall until it is being delivered to the Faraday cup with orbit locks on for a known good trajectory, the SVT should be completely off. This is especially important during tuning to the tagger dump, when mis-steering of the beam can result in very high hard neutron backgrounds.
    • Once stable beam is being delivered to the Faraday cup with orbit locks on for a known good trajectory, and the SVT collimator is in position, the FEBs and hybrids can be powered and operated, but the HV bias for the sensors must remain off.
    • In order to turn on the HV, the FSD system must be functioning so a beam excursion that hits the collimator will quickly trip off the beam.

General Instructions

Establishing Physics Quality Beam for HPS:

  1. Make sure SVT is retracted and detectors, SVT, Hodoscope and ECAL are OFF.
  2. If the beam was off for 4 hours or more or in case of troublesome beam tuning, send a beam to the tagger dump:
    • Check that beam type is set to "Photon" (HPS_EPICS->Beam->BTA).
    • Position "Blank" on the beam for the Hall-B collimator
    • Ask MCC to turn ON the tagger magnet and then deliver <10 nA beam to the tagger dump.
    • Check the beam position on the tagger viewer, it should be approximately in the center of the screen
    • Follow instructions under "Procedures" on the documentation tab for "Beamline"[2]. To tune the beam on tagger dump and perform harp scans beam current should be <10 nA.
    • Check profile using 2C21 and tagger (2C24) harp scans and compare the positions and widths with previous scans ([3],[4])
      • Positions on both harps should be within 1mm
      • Width on 2C21 should be <~0.2+/-0.05 mm
      • Width on tagger harp (2C24) <~0.5 +/- 0.1mm
    • Background levels on harp scan are comparable to those of previous scans.
  3. Before sending a beam to the Faraday cup
    • If HPS chicane must be ON, make sure that chicane GUI says "Chicane Ready"
    • Set Hall-B Collimator to 20 mm.
    • Check that SVT protection collimator is ON THE BEAM (2.82 mm). If the beam was off for more than 4HPS hours or the configuration has changed, start with 3.94 mm
    • HPS target is OUT and Hodoscope and ECAL HVs are OFF
    • SVT is OUT (position=0.000 mm on the main HPS scaler GUI) and bias HV is off (all red/green indicators RED in SVT bias GUI)
    • If any uncertainty, page the experts
    • Pay attention into following corrector values: 2C22H, 2C23V, 2H00H, 2H00V, Compare them to ones that are in [5]. Make sure their values don't differ more than 100%. If there is such difference, tell MCC about this.
  4. Send beam to the Faraday cup
    • If the beam optics is correct, then you should immediately see the beam spot on the Downstream Viewer and on the 2H00 and 2H02 BPMS.
    • If you don't see it immediately, and rates on halo counters are more than 100 Khz, then ask MCC, to change to pulsed (tune mode) beam, and ask to restore corrector values. At this point don't accept any CW beam, until beam spot is visible on Downstream Viewer.
    • If MCC operator is not able to tune the beam more than 15 minutes, then notify RC!
    • Follow the instructions under "Procedures" on the documentation tab for "Beamline"[6] to establish beam to the electron dump.

Note: in order to have reliable readings on two important for HPS BPMs, 2H00 and 2H02, beam current should be >30 nA.

    • Ask MCC to establish 30 nA beam with HPS orbit locks on (We need HallBHPSOrb not HallBOrb configuration). For orbit lock positions on 2H00(X=1.0,Y=1.5) and on 2H02(X=-1.7,Y=0.3). Use the 2.82 mm SVT collimator. (positions changed 6/25/19 by mg).
    • Tune beam profile at HPS using measured widths on 2H01A and 2H02A harps. The required beam profile at 2H02A harp is: X-width <~0.1 mm, Y-width <~ 0.05 mm. Beam profile using 2H01A and 2H02A harps with previous scans ([7],[8]) to compare.
    • Check and log the beam spot on chromax viewer
    • The halo counter rates before HPS must be very low:
      1. Upstream Left and Right, and the tagger counters few 10's of Hz,
      2. Downstream counters should count <Hz/nA
      3. The halo counter rates on HPS, HPS-L/R/T/SC, depends on the collimator and HPS chicane settings, but should not be more than 50 Hz/nA [9]
    • Positions on BPMs must be close to what they were before [10]
    • When everything is stable, perform SVT wire scan and compare with the nominal [11]
    • Once all the above is achieved, turn ECAL and Hodoscope HV ON to monitor and log ECal rates
    • Insert the 20 um W target (turn beam off first).
  2. Before accepting beam, make sure all the previous conditions are met. Always read previous log entries, compare settings of BPMs and correctors with previous settings using scaler_hps GUI.




RC daily meetings at 2 pm in the counting-house 2nd-floor conference room.

BlueJeans Info:

URL: https://bluejeans.com/794825703

Meeting ID: 794825703

Status of the run

Run Coordinator
June 12 - June 19 Stepan Stepanyan
June 19 - June 26 Matt Graham
June 26 - July 3 Tim Nelson
July 3 - July 10 Takashi Maruyama
July 10 - July 17 Stepan Stepanyan
July 17 - July 24 Rafayel Paremuzyan
July 24 - August 7 Maurik Holtrop
August 7 - August 19 Raphael Dupre
August 19 - August 21 Stepan Stepanyan
Physics Division Liaison
HPS-2019 Valery Kubarovsky
Beamline
June 12 - June 19 Rafo Paremuzyan
June 19 - July 29 Stepan Stepanyan
July 29 - August 18 Rafo Paremuzyan
SlowControls
June 12 - Augus 19 Nathan Baltzell
ECAL/HODOSCOPE
June 12 - July 1 Nathan Baltzell
July 1 - July 8 Raffaella DeVita
July 8 - July 15 Rafayel Paremuzyan
July 15 - July 22 Andrea Celentano
July 22 - July 29 Rafayel Paremuzyan
July 29 - August 5 Raphel Dupre
August 5 - August 19 Gabriel Charles
DAQ
24/7/365 Sergey Boyarinov
SVT
June 01-05 Tim Nelson
June 01-07 Cameron Bravo
June 07-11 Omar Moreno
June 12 Omar Moreno and Matt Solt
June 12-19 Vitaliy Fadeyev
June 13-18 Matt Solt
June 19-26 Omar Moreno
June 26-July 03 Cameron Bravo
July 03-10 Tim Nelson
July 10-17 Omar Moreno
July 17-24 Cameron Bravo
July 24-31 Tim Nelson
July 31-August 07 Matt Graham
August 07-14 Matt Solt
August 14-21 Matt Solt


System/Person Pager/Phone Number
Run Coordinator (757) 575-7540 (cell)
Physics Div. Liaison (757) 876-1789 (cell)
MCC-OPS 7048
Crew Chief 7045
Crew Chief 9-879-3367 (cell)
Program Deputy 9-876-7997 (cell)
Gate House Guard 5822
DAQ/Online (757) 869-2188 (cell)
SVT (757) 310-7198 (cell)
ECAL (757) 810-1489 (cell)
Slow Controls (757) 748-6922 (cell)
Beamline (757) 303-3996 (cell)
Engineering (757) 748-5048
Hall-B Floor 5165
Hall-B Space Frame 5170, 5171
Hall-B Forward Carriage 5371
Hall-B Counting Room 5244(Shift1), 5245(Shift2)
Hall-B Counting Room 5247(Expert), 5502(Target)
Hall-B Counting Room 5246(RC1), 5126(RC2)
Hall-B Gas Shed 7115


Svtpic.png

Ecalpic.png

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