Difference between revisions of "KPP Run"

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===[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://www.jlab.org/Hall-B/run-web/comm/ESAD_HallB-CLAS12_rgA.pdf ESAD], [https://www.jlab.org/Hall-B/run-web/comm/COO_HallB-CLAS12_rgA.pdf COO], [https://www.jlab.org/Hall-B/run-web/comm/RSAD_HallB-CLAS12_rgA.pdf RSAD], [https://www.jlab.org/div_dept/train/SAF111/Hall%20B%20worker%20Safety%20Training%20%28SAF111%29%20%2008%2001-12-1.pdf ERG] ===
 +
 +
<br><br>
 +
===[https://wiki.jlab.org/clas12-run/images/e/e2/Offline_-shift-schedule.pdf Off-line shift schedule]===
 +
 +
<br><br>
 +
===[https://wiki.jlab.org/clas12-run/images/8/80/HallB_KPP_Demo_data-3.pdf CLAS12 KPP Demonstration Slides]===
  
 
| valign=top |
 
| valign=top |
 
===Manuals===
 
===Manuals===
−
* [https://clasweb.jlab.org/wiki/images/6/6d/Procedure-Drift-chamber-operating-procedure.pdf DC]
+
* [https://wiki.jlab.org/clas12-run/images/b/b2/Drift-chamber-operating-procedure.pdf DC]
 
* [https://www.jlab.org/Hall-B/ftof/notes/ftof_manual.pdf FTOF]
 
* [https://www.jlab.org/Hall-B/ftof/notes/ftof_manual.pdf FTOF]
 
* [https://clasweb.jlab.org/wiki/images/a/a2/Ec_manual.pdf ECAL]
 
* [https://clasweb.jlab.org/wiki/images/a/a2/Ec_manual.pdf ECAL]
−
* [https://clasweb.jlab.org/wiki/images/d/d2/Ltcc_manual.pdf LTCC]
+
* [https://wiki.jlab.org/clas12-run/images/d/d2/Ltcc_manual.pdf LTCC]
 
* [https://clasweb.jlab.org/wiki/images/f/f1/HTCC_MANUAL.pdf HTCC]
 
* [https://clasweb.jlab.org/wiki/images/f/f1/HTCC_MANUAL.pdf HTCC]
 
* [https://www.jlab.org/Hall-B/ctof/notes/ctof_manual.pdf CTOF]
 
* [https://www.jlab.org/Hall-B/ctof/notes/ctof_manual.pdf CTOF]
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* [[Media:HarpScanManual.pdf|Performing Harp Scans]]
 
* [[Media:HarpScanManual.pdf|Performing Harp Scans]]
 
* [https://wiki.jlab.org/hps-run/images/0/0c/Accessing_the_tunnel.pdf Tunnel/Hall Access]
 
* [https://wiki.jlab.org/hps-run/images/0/0c/Accessing_the_tunnel.pdf Tunnel/Hall Access]
 +
<br>
 +
* [https://clonwiki0.jlab.org/wiki/index.php/DAQ/Online_Quick_Reference <span style="color:red;"><b>DAQ Quick Reference/Recovery</b></span>]
  
 
| valign=top |
 
| valign=top |
 +
 
===JLab Logbooks===
 
===JLab Logbooks===
 
<font size=3>
 
<font size=3>
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[https://wiki.jlab.org/clas12-run/index.php?title=Template:PhoneNumbers&action=edit Click Here]  to edit Phone Numbers.  Note, you then also have to [https://wiki.jlab.org/clas12-run/index.php?title=KPP_Run&action=edit&section=9 edit this page] to force a refresh.
 
[https://wiki.jlab.org/clas12-run/index.php?title=Template:PhoneNumbers&action=edit Click Here]  to edit Phone Numbers.  Note, you then also have to [https://wiki.jlab.org/clas12-run/index.php?title=KPP_Run&action=edit&section=9 edit this page] to force a refresh.
  
−
<!-- JUST MODIFY AND SAVE ANYTHING IN THIS COMMENT BLOCK TO FORCE A REFRESH OF THE PHONE NUMBERS TEMPLATE-->
+
<!-- JUST MODIFY AND SAVE ANYTHING IN THIS COMMENT BLOCK TO FORCE A REFRESH OF THE PHONE NUMBERS TEMPLATEs-->
  
 
= Short Term Schedule =
 
= Short Term Schedule =
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''' Beam energy 6.4 GeV (3 pass) '''<br>
 
''' Beam energy 6.4 GeV (3 pass) '''<br>
 
''' Important: Document all your work in the logbook! '''<br>
 
''' Important: Document all your work in the logbook! '''<br>
 +
== <font color=red>''' Very Successfull Run '''</font>==
 
<!--<font size=3>[https://bluejeans.com/573852742 Bluejeans for Run Meetings on Thursdays and Fridays at 2pm]</font></center>-->
 
<!--<font size=3>[https://bluejeans.com/573852742 Bluejeans for Run Meetings on Thursdays and Fridays at 2pm]</font></center>-->
 
</center>
 
</center>
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| valign=top width=50% |
 
| valign=top width=50% |
  
 +
== <font color=blue>''' Run Plan for February 4-5, 2017 : '''</font>==
 +
 +
*Target position <b> 10.505 </b> (2H01 harp, can be moved using button on the main scaler GUI or using the expert GUI)
 +
*Beam current <b> 5 nA </b> (use Faraday Cup)
 +
*Beam positons on 2H01 nA BPM <b> x=0.38, y=0.905 </b>
 +
*CODA configuration - <b> SECTOR2_SVT (sector2 trigger with SVT) <del>SECTOR2 (sector2 only trigger), FC_DC (6-sectors)</del></b>
 +
*Triger file - <b> trigger/kpp1.trg </b>
 +
*Take data, 2 hours a run
 +
*Keep track of runs, run#, torus seting, target position, # of triggers, start/end time, trigger rate
 +
 +
=== Plan: ===
 +
# <del>Complete data taking with Sector-2 only, EC-inner high threshold (5000 fADC units)</del>
 +
#<del> Reverse torus polarity, <b> Set point = -1900 A </b>. First ramp down torus to zero, by setting 0 in the set point, then ramp up to -1900 A.</del>
 +
# <del>Take data with reverse field, Sector-2 only, high EC-inner threshold</del>
 +
# <del>Study tracking efficiency: four HV setings: 8, 9, 10, 11, 12, for each HV four threshold settings: 30, 45, 60, 75. 10 min runs each.</del>
 +
# <del>Continue with data taking torus at -1900 A, target at 13.125, DC HV setting #11, thresholds 45 mV </del>
 +
# <del> Switch target (call RC) and continue data taking till Sunday morning </del>
 +
# <del>Change torus polarity. While torus current is changing, perform harp scans and FSD studies (see below)</del>
 +
# <del>(Sunday morning while torus setting gets changed) Perform beam studies (call RC and beamline, <b> Turn off DC HV </b>):</del> done
 +
#*<del>Do harp scans - 2C21, "tagger", and 2H01 </del>
 +
#*<del>Test FSD system, run Struck scaler with 300um dwel time, ask MCC to set FSD trip time integration times for FSD channels (1 old and 3 new) to 1 ms. Un-mask one FSD channel, run collimator with slmall steps to left or right untill it will intercept beam tails. It will raise rates on halo counters.  </del>
 +
# <del>Take one 30 min run with torus at zero </del> done
 +
# Set torus +1900 A, continue data taking, trigger Sector-2 only, high threshold in EC-in (5000 fADC counts)
 +
#* <del>take one run for 3 hours at low luminosity. Move beam in vertical direction up (or down does not matter) with 0.1 mm steps untill rates on downstream counters will be ~5kHz</del>done. x10 lower rates on downstream halo couters (luminosity monitor)
 +
# <del> Take short ~1 hour, random trigger data (Sergei should be in to set  it up). Should happen before goimg to 6-sector trigger ~9 pm </del>
 +
# Switch to 6-sector trigger (some time ~11pm), take data till Monday morning.
 +
# <b> Run ends 6:45 am on Monday. Following has to be done:
 +
#* End the run, turn OFF HVs for all detectors, Start Ramping torus down to zero
 +
#* Retract the target using 2H01 expert GUI, just put -10 in the left "MoveAbs" and hit the return. Motor will go towards 0, and will hit "Lo Limit" limit switch
 +
#* Ask MCC to change beam current to 50nA with small steps, this is to calibrate SLM (data goes to MYA, but you can record beam current and the SLM reading if you want)
 +
#* When finished, got to 50nA, ask MCC to terminate the beam and take the Hall to restricted access.
 +
#* When torus reaches to 0 turn the PS OFF.</b>
 +
<!--
 +
== The Hall was closed and brought to controlled access at 8pm on Thursday, February 2 ==
  
−
== <font color=blue>''' Run Plan for February 2 - 3, 2017 : '''</font>==
+
<b> While no beam, cosmic calibration run is in progress with all CLAS12 detectors ON.
  
−
== Start close-up of the Hall at 3pm on Friday, February 3 ==
+
When ready to get beam, Turn all beamline devices ON, turn all CLAS12 detectors OFF (including SVT)</b>
−
=== Locking up the hall on Fridays ===
 
−
* At 2pm check the status of the activities in the hall and notify RC if there are potential delays for the lockup at 3pm.
 
−
* Work with the hall work coordinator (Doug Tilles or his designee) to make sure hall is ready for sweep at around 3pm:
 
−
** Vacuum is good, magnet power supplies (Tagger and Torus) are turned ON and in remote mode, LCW is on.
 
−
* Make sure experts, beamline, ECal, DC, HTCC, FTOF, and slow controls, checked their systems before the lockup.
 
−
* When ready notify MCC to start sweep and lockup of the hall.
 
−
* Make sure all necessary monitoring GUIs are up and running.
 
−
* Make sure beam viewer screens are up.
 
−
* When hall reaches "Beam Permit":
 
−
**  Ramp torus to 10% of max current (380A)
 
−
** Turn all beamline devices ON, turn all CLAS12 detectors OFF </font>
 
  
  
−
== Establish beam to the tagger dump ==
+
== Establish beam to the tagger yoke dump ==
−
# See [[Media:CLAS12_beamline_commissioning.pdf|Beamline Commissioning Plans]], execute 2(a) to 2(g).
+
# Work with MCC to establish beam on the tagger yoke dump - <b>This is the first time we are running to this new dump, record everything, rates in some of halo counters can be away off the chart. Consult with RC if you see something very unusual.  </b>
−
# Log screenshots of the ECal and main HPS scaler screens for reference when beam is established at the tagger
+
# See [[Media:CLAS12_beamline_commissioning.pdf|Beamline Commissioning Plans]] for details, execute 2(a) to 2(g). <b> Note, MCC may use up to 4 uA tune mode beam for short time periods for steering purposes </b>.
 +
# Log every harp scan
 +
# Log Main scaler GUI every time conditions change
 +
# Follow the beam position and current strip charts for 2C21 and 2C24 nA BPMs, make log entry of strip chartes
 
== Bring beam to FC: ==
 
== Bring beam to FC: ==
−
# '''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 Beamline Commissioning Plans, execute 2(g) to 2(k). Note, at some point part of CLAS12 calorimeters must be turned on
−
# '''<font color=red> Important Note: Before bringing beams to the FC, be sure that the SVT and ECal are off, the SVT fully retracted, the target out,  and the 2.82 mm SVT collimator is in. All beam studies should be done in these conditions with beam currents of 30 nA.</font>'''
+
# Log every harp scan
−
# Establish beam to the Faraday cup following the "General Guidelines" on the right. The required beam profile at 2H02A harp is: X-width <~0.25 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 and Y [https://logbooks.jlab.org/entry/3388464]. Vertically should be within 50 um match, horizontally 300 um should be enough.
+
# Log Main scaler GUI every time conditions change
−
# Restore ECal and Trigger
+
# Follow the beam position and current strip charts for 2C21 and 2C24 nA BPMs, make log entry of strip charts
−
#* Turn on ECal
+
# Setup FSD if it is day time and beamline expert is present, 2(l) and 2(m), otherwise skip them
−
#* Record FADC rates with and without the 4 um target at 200 nA.
+
# Start bringing the CLAS12 detectors ON and do rate studies , 2(n) and 2(o). When moving target in, consult [[Media:Harp_TargetStick.pdf| 2H01 harp stick drawing]] and 2H01 harp scans performed on step 2(k) to define how far you should move the motor to get carbon target on the beam, first bullet of 2(o).
−
#** Agree with last weekend ([https://logbooks.jlab.org/entry/3385658 4 um], [https://logbooks.jlab.org/entry/3385646 No Target])?
+
<b> At this point call DAQ, EC, DC, and FTOF experts, notify them that beam is ready for data taking</b>
−
#* Call ECal expert to perform pedestal run
+
-->
−
#* Trigger/DAQ expert checks trigger rates, DAQ, and deadtime with 200 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: ===
 +
# '''During beam tune and harp scans Hall-B halo FSD must be masked.'''
 
# '''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.'''
 +
# '''If DAQ crashed/broken: Follow instruction on Documentation tab. If cannot resolved in 20-30 min call DAQ on-call cell phone.'''
 +
# '''With any issue contact On-Call Experts or RC - do not spend more than 15-20 min trying to fix the problem.'''
 +
  
 
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| valign=top |
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==<font color=blue><b>General Instructions:</b></font>==
 
==<font color=blue><b>General Instructions:</b></font>==
  
−
===<font color=magenta><b>DAQ RECOVERY</b></font>===
+
 
−
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.]].
+
# [https://clonwiki0.jlab.org/wiki/index.php/DAQ/Online_Quick_Reference 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.
−
 
+
-->
 +
=== Locking up the hall  ===
 +
* Work with the hall work coordinator (Doug Tilles or his designee) to make sure hall is ready for sweep at around 3pm:
 +
** Vacuum is good, magnet power supplies (Tagger and Torus) are turned ON and in remote mode, LCW is on.
 +
* Make sure experts, beamline, ECal, DC, HTCC, FTOF, and slow controls, checked their systems before the lockup.
 +
* When ready notify MCC to start sweep and lockup of the hall.
 +
* Make sure all necessary monitoring GUIs are up and running.
 +
* Make sure beam viewer screens are up.
 +
* When hall is in "Beam Permit"
 +
**  Ramp torus to 10% of max current (380A)
 +
** Turn tagger magnet ON if beam tune on the tagger dump or tagger yoke dump will be needed (it will be needed if beam comes back after several hours of down)
 +
** Turn all beamline devices ON, turn all CLAS12 detectors OFF
  
 
===Establishing Acceptable Beam Conditions:===
 
===Establishing Acceptable Beam Conditions:===
−
# <font color='red'>'''Make sure SVT is retracted and both SVT and ECAL are OFF.'''</font>
+
# <font color='red'>'''Make sure CLAS12 is OFF When Beam is Turned For the First Time After long Down.'''</font>
−
# <b>First send beam to the tagger dump:</b>
+
# <b>First send beam to the tagger yoke 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>).
 
#* Ask MCC to turn ON the tagger magnet and then deliver <10 nA beam.
 
#* Ask MCC to turn ON the tagger magnet and then deliver <10 nA beam.
−
#* Check the beam position on the tagger viewer, it should be approximately in the centre of the screen
+
#* Follow instructions under "Procedures" on the documentation tab for [[Media:CLAS12_beamline_commissioning.pdf|Beamline Commissioning Plans]]. To tune the beam on tagger yoke 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 harp scans, and compare the positions and widths with previous scans ([https://logbooks.jlab.org/entry/3388429],[https://logbooks.jlab.org/entry/3388441])
 
#** 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 <~0.1+/-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]
+
<!--#* 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 '''
 
−
#* Check that chicane GUI says "Chicane Ready"
 
−
#* ''' Check that SVT protection collimator is ON '''
 
−
#* HPS target is '''OUT''' and ECAL HV is '''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)
 
−
#* 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/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
 
#* 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 put 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 30 minutes, then please 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. -->
+
#* Tune beam profile at CLAS12 target using 2H01A harp. The required beam profile at 2H01A harp is: X-width <~0.3 mm, Y-width <~ 0.3 mm  
−
<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>.
 
−
#* 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.
 
 
#* 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:
+
#* Check rates on halo counters
 
#*# UPS-L and UPS-R few Hz/nA,  
 
#*# UPS-L and UPS-R few Hz/nA,  
−
#*# The tagger counters should count less than Hz/nA and downstream counters should count ~Hz/nA
+
#*# The tagger counters should count less than Hz/nA and 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]
+
#*# Midstream counters few Hz/nA  
−
#* Positions on BPMs must be close to what they were before [https://logbooks.jlab.org/entry/3376894]
+
#* Once all the above is achieved, turn first CLAS12 ECal HV '''ON''' and monitor and log ECal rates before bringing rest of the detector UP
−
#* Once all the above is achieved, turn ECAL HV '''ON''' to monitor and log ECal rates
 
−
#* Insert the 4um W target without turning off the beam.
 
−
# '''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 ===
 
=== Setting up the FSD threshold ===
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* <font color='red'> Make sure if MCC operator set the FSD limit and integration time correctly </font>
 
* <font color='red'> Make sure if MCC operator set the FSD limit and integration time correctly </font>
  
−
 
−
<!--
 
−
===SVT Instructions:===
 
−
#<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):
 
−
#* 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
 
−
# The first time sending beam to the Faraday cup after the hall is closed, page the SVT expert.
 
−
-->
 
−
<!--
 
−
===ECAL Instructions:===
 
−
*HV must be OFF during FIRST delivery of beam to the Faraday Cup after tuning to the Tagger Dump.
 
−
**Only after stable beam established to Faraday Cup can HV can be turned ON.
 
−
*HV should be OFF when running beam studies with Struck scalers with 1 mm wire or tuning collimator position.
 
−
-->
 
−
 
−
|-
 
−
<!--
 
−
!align=left colspan=2 width=100% style="background:#eeeeee;"|
 
−
==<font color=red>Recovering from beam trips when running SVT at 0.5 mm:</font>==
 
−
# SVT HV will trip off automatically
 
−
# Check the FSD GUI to see if high rates in the HPS halo counters generated the trip
 
−
#* If it was '''NOT''' an HPS halo counter trip, MCC should restore the beam on their own. As soon beam is back and stable, restore SVT HV.
 
−
#* 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.
 
−
#*# Tell MCC we are ready for beam.
 
−
#*# Once 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.
 
−
#*# Resume data taking.
 
−
-->
 
  
 
|-
 
|-
Line 230: Line 215:
 
#* [https://bta.acc.jlab.org Fill out BTA] hourly.  Click "Load from EPICS" to automatically fill the left side.
 
#* [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]
 
#* 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.
+
# Perform 2H01A harp scan once per shift or when beam conditions have changed, based on beam monitors (BPMs, halo rates, beam-viewer). During harp scans the HV for DC and HTCC should be OFF.
−
# '''With any issue contact On-Call Experts or RC'''
 
  
 
| valign=top style="background:#eeeeee;"|
 
| valign=top style="background:#eeeeee;"|
  
 
==Every Run:==
 
==Every Run:==
−
# After "Go":  [https://logbooks.jlab.org/entry/3337784 Check SVT Occupancy]
 
−
# Update the [https://docs.google.com/spreadsheets/d/1X_TfOQyQBv9Ja1IQ5LYImk0sd00eN-d4zzkCwn-CSUM/edit#gid=43855609 Run Spreadsheet]
 
 
# Log screenshots of:
 
# Log screenshots of:
−
#* main scaler_hps display
+
#* main scaler GUI display
−
#* ECAL FADC rate gui
+
#* Detector occupancy plots
 
#* Trigger rate gui
 
#* Trigger rate gui
−
#* SVT and ECAL Monitoring pdfs
+
#* Beam strip charts
−
#* Put the output of the following command <font color=red>hpsTiStatus.sh </font>into the logbook
 
−
# After each run execute this script (replace RunNb by the actual run number):
 
−
#* <tt> hps2tapeAndDelete.sh RunNb</tt>
 
−
# All trigger files to be used by shifters are in <tt>HPS/Run2016</tt>
 
  
 
|}
 
|}
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* [http://hallbcam02.jlab.org Hall Fisheye]
 
* [http://hallbcam02.jlab.org Hall Fisheye]
 
<!--[https://hallbopi.jlab.org/webopi3.3/ Controls WebOpi] (read-only)-->
 
<!--[https://hallbopi.jlab.org/webopi3.3/ Controls WebOpi] (read-only)-->
 +
 +
| valign=top |
 +
===Manuals===
 +
*[https://wiki.jlab.org/clas12-run/images/c/c9/CedManual.pdf CED Manual]
 +
*[https://wiki.jlab.org/clas12-run/images/7/7e/MON12.pdf MON12 Manual]
 +
*[https://wiki.jlab.org/clas12-run/images/5/5a/OfflineKPPmanual2.pdf KPP off-line Manual]
 +
 +
| valign=top |
 +
===Epics on the web===
 +
*[https://hallbopi.jlab.org/webopi3.3/w WebOPI] (CUE Login)
 +
 
|}
 
|}
  

Latest revision as of 13:44, 25 July 2024

[edit]
Role Phone Number
Hall B Run Coordinator (757) 575-7540 (cell)
Hall B Physics Division Liaison (757) 876-1789 (cell)
MCC 7048
Crew Chief 7045
Crew Chief (757) 876-3367 (cell)
Program Deputy (757) 876-7997 (cell)
RadCon (757) 876-1743 (cell)
Gate House Guard 5822
Location Phone Number
Hall B Floor 5165
Hall B Space Frame 5170 and 5171
Hall B Forward Carriage 5371
Hall B Gas Shed 7115
Hall B Counting House 5244 (Shift Expert)
Hall B Counting House (757) 329-4846 (Shift Expert cell)
Hall B Counting House 5245 or 5126 (Shift Worker)
Hall A Counting House 5501
Hall C Counting House 6000
Hall D Counting House 5504
Hall B System Phone Number On-Call Person
Engineering (757) 748-5048 (cell)
(757) 897-9060 (cell)		 Engineering On-Call (primary)
Denny Insley (secondary)
Slow Controls (757) 748-6922 (cell) Nathan Baltzell
Beamline (757) 303-3996 (cell) Eugene Pasyuk
DC (757) 218-4372 (cell)
(757) 748-5048 (cell)		 Florian Hauenstein (primary)
Engineering On-Call (secondary)
SVT/MVT/MM (757) 541-7539 (cell)
(757) 753-7769 (cell)		 Yuri Gotra (primary)
Rafo Paremuzyan (secondary)
ECAL (757) 810-1489 (cell) Cole Smith
FTOF/CTOF/CND (757) 344-7204 (cell) Daniel Carman
ALERT (757) 329-4844 (cell) Raphael Dupré
HTCC/LTCC (757) 344-7174 (cell) Youri Sharabian
FT (757) 344-1848 (cell) Raffaella De Vita
BAND (757) 310-7198 (cell) Florian Hauenstein
RICH (757) 344-3235 (cell)
(757) 748-6922 (cell)		 Christopher Dilks (primary)
Nathan Baltzell (secondary)
DAQ (757) 232-6221 (cell) Sergey Boiarinov
HYDRA (317) 550-9226 (cell) Torri Jeske
Authorized Hall B Solenoid/Torus Operators
Hall B Denny Insley, Morgan Cook, Eugene Pasyuk
Magnet Group Probir Ghosha, Renuka Rajput-Ghoshal
Detector Support Group Brian Eng, Pablo Campero, Tyler Lemon
DC Power Onish Kumar, Sarin Philip
  • Note, all non-JLab numbers must be dialed with an area code. When calling from a counting-house landline, dial "9" first.
  • To call JLab phones from outside the lab, all 4-digit numbers must be preceded by 757-269
  • Click Here to edit Phone Numbers. Note, you then also have to edit the current page to force a refresh.

Click Here to edit Phone Numbers. Note, you then also have to edit this page to force a refresh.


CLAS12 KPP run, February 3 to March 3
Beam energy 6.4 GeV (3 pass)
Important: Document all your work in the logbook!

Very Successfull Run

RC: Stepan Stepanyan

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

PDL: Eugene Pasyuk

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

Run Plan for February 4-5, 2017 :

  • Target position 10.505 (2H01 harp, can be moved using button on the main scaler GUI or using the expert GUI)
  • Beam current 5 nA (use Faraday Cup)
  • Beam positons on 2H01 nA BPM x=0.38, y=0.905
  • CODA configuration - SECTOR2_SVT (sector2 trigger with SVT) SECTOR2 (sector2 only trigger), FC_DC (6-sectors)
  • Triger file - trigger/kpp1.trg
  • Take data, 2 hours a run
  • Keep track of runs, run#, torus seting, target position, # of triggers, start/end time, trigger rate

Plan:

  1. Complete data taking with Sector-2 only, EC-inner high threshold (5000 fADC units)
  2. Reverse torus polarity, Set point = -1900 A . First ramp down torus to zero, by setting 0 in the set point, then ramp up to -1900 A.
  3. Take data with reverse field, Sector-2 only, high EC-inner threshold
  4. Study tracking efficiency: four HV setings: 8, 9, 10, 11, 12, for each HV four threshold settings: 30, 45, 60, 75. 10 min runs each.
  5. Continue with data taking torus at -1900 A, target at 13.125, DC HV setting #11, thresholds 45 mV
  6. Switch target (call RC) and continue data taking till Sunday morning
  7. Change torus polarity. While torus current is changing, perform harp scans and FSD studies (see below)
  8. (Sunday morning while torus setting gets changed) Perform beam studies (call RC and beamline, Turn off DC HV ): done
    • Do harp scans - 2C21, "tagger", and 2H01
    • Test FSD system, run Struck scaler with 300um dwel time, ask MCC to set FSD trip time integration times for FSD channels (1 old and 3 new) to 1 ms. Un-mask one FSD channel, run collimator with slmall steps to left or right untill it will intercept beam tails. It will raise rates on halo counters.
  9. Take one 30 min run with torus at zero done
  10. Set torus +1900 A, continue data taking, trigger Sector-2 only, high threshold in EC-in (5000 fADC counts)
    • take one run for 3 hours at low luminosity. Move beam in vertical direction up (or down does not matter) with 0.1 mm steps untill rates on downstream counters will be ~5kHzdone. x10 lower rates on downstream halo couters (luminosity monitor)
  11. Take short ~1 hour, random trigger data (Sergei should be in to set it up). Should happen before goimg to 6-sector trigger ~9 pm
  12. Switch to 6-sector trigger (some time ~11pm), take data till Monday morning.
  13. Run ends 6:45 am on Monday. Following has to be done:
    • End the run, turn OFF HVs for all detectors, Start Ramping torus down to zero
    • Retract the target using 2H01 expert GUI, just put -10 in the left "MoveAbs" and hit the return. Motor will go towards 0, and will hit "Lo Limit" limit switch
    • Ask MCC to change beam current to 50nA with small steps, this is to calibrate SLM (data goes to MYA, but you can record beam current and the SLM reading if you want)
    • When finished, got to 50nA, ask MCC to terminate the beam and take the Hall to restricted access.
    • When torus reaches to 0 turn the PS OFF.

Important Notes:

  1. During beam tune and harp scans Hall-B halo FSD must be masked.
  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. If DAQ crashed/broken: Follow instruction on Documentation tab. If cannot resolved in 20-30 min call DAQ on-call cell phone.
  4. With any issue contact On-Call Experts or RC - do not spend more than 15-20 min trying to fix the problem.

General Instructions:

Locking up the hall

  • Work with the hall work coordinator (Doug Tilles or his designee) to make sure hall is ready for sweep at around 3pm:
    • Vacuum is good, magnet power supplies (Tagger and Torus) are turned ON and in remote mode, LCW is on.
  • Make sure experts, beamline, ECal, DC, HTCC, FTOF, and slow controls, checked their systems before the lockup.
  • When ready notify MCC to start sweep and lockup of the hall.
  • Make sure all necessary monitoring GUIs are up and running.
  • Make sure beam viewer screens are up.
  • When hall is in "Beam Permit"
    • Ramp torus to 10% of max current (380A)
    • Turn tagger magnet ON if beam tune on the tagger dump or tagger yoke dump will be needed (it will be needed if beam comes back after several hours of down)
    • Turn all beamline devices ON, turn all CLAS12 detectors OFF

Establishing Acceptable Beam Conditions:

  1. Make sure CLAS12 is OFF When Beam is Turned For the First Time After long Down.
  2. First send beam to the tagger yoke dump:
    • Check that beam type is set to "Photon" (HPS_EPICS->Beam->BTA).
    • Ask MCC to turn ON the tagger magnet and then deliver <10 nA beam.
    • Follow instructions under "Procedures" on the documentation tab for Beamline Commissioning Plans. To tune the beam on tagger yoke 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 ([1],[2])
      • Positions on both harps should be within 1mm
      • Width on 2C21 should be <~0.1+/-0.05 mm
      • Width on tagger harp (2C24) <~0.5 +/- 0.1mm
  3. Send beam to the Faraday cup
    • If the beam optics is correct, then you should immediately see the beam spot on the 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 put 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
    • Tune beam profile at CLAS12 target using 2H01A harp. The required beam profile at 2H01A harp is: X-width <~0.3 mm, Y-width <~ 0.3 mm
    • Check and log the beam spot on chromax viewer
    • Check rates on halo counters
      1. UPS-L and UPS-R few Hz/nA,
      2. The tagger counters should count less than Hz/nA and downstream counters should count ~Hz/nA,
      3. Midstream counters few Hz/nA
    • Once all the above is achieved, turn first CLAS12 ECal HV ON and monitor and log ECal rates before bringing rest of the detector UP

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
  • Make sure if MCC operator set the FSD limit and integration time correctly


Every Shift:

  1. Follow run plan as outlined by RC
  2. If any concern about beam stability, ask MCC if orbit locks are on (they should be).
  3. 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
    • Fill out BTA hourly. Click "Load from EPICS" to automatically fill the left side.
    • Fill and submit the shift checklist in the logbook
  4. Perform 2H01A harp scan once per shift or when beam conditions have changed, based on beam monitors (BPMs, halo rates, beam-viewer). During harp scans the HV for DC and HTCC should be OFF.

Every Run:

  1. Log screenshots of:
    • main scaler GUI display
    • Detector occupancy plots
    • Trigger rate gui
    • Beam strip charts


Clas12design.png

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