Difference between revisions of "The HPS Run Wiki"

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<!--* [[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] Things to read before shift. ===
+
===[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]]
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<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]
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</font></center>
 
</font></center>
  
== RC: Rafayel Paremuzyan ==
+
== RC: Stepan Stepanyan ==
 
* (757) 575-7540   
 
* (757) 575-7540   
 
* 9 575 7540 from Counting Room
 
* 9 575 7540 from Counting Room
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* 9 876-1789 from Counting Room
 
* 9 876-1789 from Counting Room
  
=== <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> ===
+
== <font color=red> Important instructions </font> ==
=== <font color=red> * [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. NO ABUs or BANU if beam tune is in progress, make it all BNA with ER 100%. </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=1.0,Y=1.5) and on 2H02(X=-1.7,Y=0.3). Use the 2.82 mm SVT collimator </font></b> ===
  
 
{| {{TableStyle1}}  
 
{| {{TableStyle1}}  
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| valign=top width=50% |
 
| valign=top width=50% |
  
== Run Plan July 17-18, 2019 ==
+
== Run Plan August 24-26, 2019 ==
  
Hot items:
+
* <b>Schedule and plans:</b>
# No target run to study beam halo.
+
# Establish beam for HPS (see instructions on the right column)
# Data taking with SVT at 0.5 mm using FEE trigger.
+
# <b> Take production data with PROD66 (PROD67) / hps_v11_5.trg 20um target at 120 nA, HPS collimator 2.82 mm. Length of the run will be defined by the SVT bias currents, but no longer than 4 hours.  
# Data taking with SVT at 0.5 mm using v6 trigger.
+
# After one produciton run, let SVT expert to do studies at different bias voltages and at low luminosity (50 nA on 8 um target)
 +
# Then continue production data taking
 +
<!--# Take random trigger data, 1 run for 300M events: PROD66 (PROD67) / hps_v6_random_30khz.trg 20um target at 120 nA, HPS collimator 2.82 mm
 +
# Take No-target data (~1 hour): PROD66 (PROD67) / hps_v11_5.trg at 120 nA, HPS collimator 2.82 mm -->
  
Schedule and plans:
+
</b>
# Plan to re-establish beam to Hall B for HPS. Follow "General Guidelines" on the right and the Beamline Procedures and Manual on the shift documentation page.
+
# Perform collimator scan to make sure the beam is centered on the collimator. Call beamline expert.
+
  
 +
<!-- * Beam will be down on Thursday, August 22, ~ 8am for Hall-A wWein angle change:
 +
# At 6:45 am turn off the chicane and  call beamline expert to setup for straight track run
 +
# After beam is off, SVT expert will cool down SVT to -20 C and perform a basline run -->
  
When there is stable beam:
 
# Pedestal Runs
 
#* Take pedestal runs with the target "In"
 
#* The target should be 4 um W
 
#* take three runs 5 minute runs with 50 nA, 100 nA and 150 nA current
 
#* The trigger file should be hps_v6_pedestal.trg
 
# No target run
 
#* SVT running - including moving the SVT in - is still expert only; don't try to run with the SVT on without an expert
 
#* Configuration: PROD66
 
#* Trigger: hps_v6.trg
 
#* Target: OUT
 
#* Current: 30 nA -> 100 nA
 
#* SVT L0: 1.5, 1.0, 0.5 mm
 
#* Collimator: 2.82 mm, 2.25 mm
 
#* 15 min. run
 
# FEE run
 
#* Configuration: PROD66
 
#* Trigger: hps_v6_FEE.trg
 
#* Target: 4 microns W
 
#* Current: 30 nA
 
# v6 NoHodoTET
 
#* Beam current 100 nA, or as high as SVT experts will agree on.
 
#* Configuration: PROD66
 
#* Take 15M events with hps_v6_NoHodoTET.trg
 
#* This is the same as the v6. with only difference that only for Hodo channels TET is set to 0.
 
#* This run will allow to choose TET values for Hodoscope
 
# v6 run
 
#* Configuration: PROD66
 
#* Trigger: hps_v6.trg
 
#* Target: 4 microns W
 
#* Current: 100 nA
 
<!--
 
# When no SVT work, run with ECal and hodoscope:
 
#* Configuration: PROD66_NOSVT
 
#* Trigger: hps_v6.trg
 
#* Target: 4 microns W
 
#* Current: 150 nA
 
-->
 
# remember to do HARP scans of 2H01 and 2H02 every shift!
 
  
<!-- .  -->
+
* Do beam profile check ones a day, at 9 am, using 2H02 and SVT wire harps
 
+
<!--# 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 8um target @ 100 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 ensure 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>
+
-->
+
 
==Every Shift:==
 
==Every Shift:==
 
# Follow run plan as outlined by RC
 
# Follow run plan as outlined by RC
 
# '''With any issue contact On-Call Experts or RC'''
 
# '''With any issue contact On-Call Experts or RC'''
# 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, HVs on SVT ECal and Hodoscope should be OFF. '''Note: Halo counter FSDs are masked, Beam current 30 nA, Orbit locks running'''.
+
# 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).
+
# 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.
 
# 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
 
#* 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.
+
#* [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/151 shift checklist in the logbook]
+
#* Fill and submit the [https://logbooks.jlab.org/checklists/530 shift checklist in the logbook]
  
 
==Every Run:==
 
==Every Run:==
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#* ECAL FADC rate gui
 
#* ECAL FADC rate gui
 
#* Trigger rate gui
 
#* Trigger rate gui
#* SVT and HODOSCOPE and ECAL Monitoring pdfs  
+
#* 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: ==
 +
 
 +
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:
 +
# Stop the run.
 +
# Take the beam away, turn off SVT bias voltages, and wait 10 min.
 +
# Turn the bias voltages back on.
 +
# Check that the L0 bias currents have gone back down to ~4 uA
 +
# 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: ==
 +
 
 +
# During harp scans, SVT must be retracted (motors/SVT Positioners). HVs on SVT, ECal and Hodoscope should be OFF.
 +
# Halo counter FSDs (Downstream, HPS Up and HPS Down) are masked, Beam current 100 nA, Orbit locks running.
 +
# Perform the HARP scan, log the results.
 +
# If the beam looks different, you should call beam-line on-call that will advise on the next steps.
 +
# 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: ===
 
=== 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:'''
 
# ''' For SVT Operations:'''
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#*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.
 
#*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.
 
#*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.
 
<!-- ==[[SVT RECOVERY PROCEDURES]]== -->
 
  
 
| valign=top |
 
| valign=top |
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<!--===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.]].
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===Establishing Physics Quality Beam for HPS:===
 
===Establishing Physics Quality Beam for HPS:===
 
# <font color='red'>'''Make sure SVT is retracted and detectors, SVT, Hodoscope 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   
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#* 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 (2C24) harp scans, and compare the positions and widths with previous scans ([https://logbooks.jlab.org/entry/3696630],[https://logbooks.jlab.org/entry/3696638])
+
#* 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
 
#* Background levels on harp scan are comparable to those of previous scans.
 
#* 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]-->
 
<!--#* Halo counters UPS-L/R and TAG-L/T/T2 should be ~few Hz/nA [https://logbooks.jlab.org/entry/3376736]-->
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#* If HPS chicane must be ON, make sure that chicane GUI says "Chicane Ready"
 
#* If HPS chicane must be ON, make sure that chicane GUI says "Chicane Ready"
 
#* Set Hall-B Collimator to 20 mm.
 
#* 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 8 hours or the configuration has changed, start with 3.94 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'''
 
#* HPS target is '''OUT''' and Hodoscope and ECAL HVs are '''OFF'''
#* 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)
+
#* 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
 
#* 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/3689166]. Make sure their values don't differ more than 100%. If there is 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 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=3.0,Y=5.0) and on 2H02(X=-1.5,Y=0.55). Use the 2.82 mm SVT collimator. (positions changed 6/25/19 by mg)</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 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/3696777]) to compare.
+
#* 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:  
#*# Upstream Left and Right, and the tagger counters few Hz,  
+
#*# Upstream Left and Right, and the tagger counters few 10's of Hz,  
 
#*# 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/3696813]
+
#*# 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/3696813]
 
#* Positions on BPMs must be close to what they were before [https://logbooks.jlab.org/entry/3696813]
#* When everything is stable, perform SVT wire scan and compare with the nominal [https://logbooks.jlab.org/entry/3696814]
+
#* When everything is stable, perform SVT wire scan and compare with the nominal [https://logbooks.jlab.org/entry/3720219]
 
#* Once all the above is achieved, turn ECAL and Hodoscope HV '''ON''' to monitor and log ECal rates
 
#* Once all the above is achieved, turn ECAL and Hodoscope HV '''ON''' to monitor and log ECal rates
#* Insert the 4um W target without turning off the beam.
+
#* 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.'''
  
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Meeting ID: 794825703
 
Meeting ID: 794825703
 
   
 
   
 
+
[https://plot.ly/~maurik/31/#/ Status of the run]
  
 
{| {{TableStyle1}}
 
{| {{TableStyle1}}
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| 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
 
|}
 
|}
  
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<b>Accelerator:</b>
 
<b>Accelerator:</b>
 
* [http://epicsweb.jlab.org Accelerator EPICS-WEB] (offsite access)
 
* [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)
 
* [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]
Line 484: Line 462:
 
* [[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 539: Line 518:
 
| 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

Latest revision as of 16:50, 24 August 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=1.0,Y=1.5) and on 2H02(X=-1.7,Y=0.3). Use the 2.82 mm SVT collimator

Run Plan August 24-26, 2019

  • Schedule and plans:
  1. Establish beam for HPS (see instructions on the right column)
  2. Take production data with PROD66 (PROD67) / hps_v11_5.trg 20um target at 120 nA, HPS collimator 2.82 mm. Length of the run will be defined by the SVT bias currents, but no longer than 4 hours.
  3. After one produciton run, let SVT expert to do studies at different bias voltages and at low luminosity (50 nA on 8 um target)
  4. Then continue production data taking


  • Do beam profile check ones a day, at 9 am, using 2H02 and SVT wire harps

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).
  1. 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