Difference between revisions of "KPP Run"

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(Short Term Schedule)
(Short Term Schedule)
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===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 On for the First Time After long Down.'''</font>
 
# <b>First send beam to the tagger dump:</b>
 
# <b>First send 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>).
 
#* 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
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<!-- # <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. -->
 
<!-- #* 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>
+
#* Tune beam profile at CLAS12 target using 2H01A harp. The required beam profile at 2H01A harp is: X-width <~0.25 mm, Y-width <~ 0.25 mm  
#* 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]
+
#* Once all the above is achieved, turn first CLAS12 ECal HV '''ON''' and monitor and log ECal rates
#* Positions on BPMs must be close to what they were before [https://logbooks.jlab.org/entry/3376894]
+
#* 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.
 
-->
 
  
 
|-
 
|-
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#* [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'''
+
# '''With any issue contact On-Call Experts or RC''' - do not spend more than 15-20 min trying to fix the problem
  
 
| 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_hps display
#* ECAL FADC rate gui
+
#* Detector occupancy plots
 
#* Trigger 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
 
# 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>
 
  
 
|}
 
|}

Revision as of 18:58, 29 January 2017

[edit]
Person Phone Number
Run Coordinator 9-757 575-7540 (cell)
Physics Division Liaison 9-757 876-1789 (cell)
Shift Expert 5244 or 9-757 329-4846 (cell)
Shift Worker 5126
MCC-OPS 7048
Crew Chief 7045
Crew Chief 9-757 876-3367 (cell)
Program Deputy 9-757 876-7997 (cell)
Engineering on-call 9-757 748-5048 (cell)
Engineering on-call secondary 9-757 897-9060 (cell)
Radcon (needed for target cell swaps) 9-757 876-1743 (cell)
Gate House Guard 5822
Location Phone Number
Hall-B Floor 5165
Hall-B Space Frame 5170, 5171
Hall-B Forward Carriage 5371
Hall-B Counting Room 5245 (Shift1), 5126 (Shift2)
Hall-B Counting Room 5244 (Expert)
Hall-B Gas Shed 7115
System Phone Number On-Call Person
DC (757) 748-5048 (cell) Engineering On-Call
SVT + MM (757) 541-7539 (cell) Yuri Gotra Primary
SVT + MM (757) 753-7769 (cell) Rafo Paremuzyan (secondary)
ECAL (757) 810-1489 (cell) Cole Smith
FTOF/CTOF (757) 344-7204 (cell) Jose Carvajal
CND (757) 344-7204 (cell) Jose Carvajal
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) Valery Kubarovsky
DAQ (757) 232-6221 (cell) Sergey Boiarinov
Slow Controls (757) 748-6922 (cell) Nathan Baltzell
Beamline (757) 303-3996 (cell) Eugene Pasyuk
Pol. Target On-Call (757) 218 2266 (cell) Tsuneo Kageya
Polarized Target (757) 746-9277 (cell) Chris Keith
Polarized Target (757) 897-1415 (cell) James Maxwell
Polarized Target (757) 871-5374 (cell) James Brock
Target (not used) (757) 822-9586 (cell) Bob Miller Primary
Target (not used) (757) 897-9060 (cell) Denny Insley Secondary
Counting House C x6000
Counting House D x5504

In case of a problem with superconducting magnets call Engineering on-call first, particularly if it is related to cryo.
For all other superconducting magnet problems call magnet group.
Their schedule and phone numbers are posted on the wall next to the Saclay target computer.




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!

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 2 - 3, 2017 :

Start close-up of the Hall at 3pm on Friday, February 3

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 yoke dump

  1. Work with MCC to establish beam on the tagger yoke dump
  2. See Beamline Commissioning Plans for details, execute 2(a) to 2(g).
  3. Log every harp scan
  4. Log Main scaler GUI every time conditions change
  5. Follow beam position and current strip charts for 2C21 and 2C24 nA BPMs, make log entry of strip chartes

Bring beam to FC:

  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
  2. Log every harp scan
  3. Log Main scaler GUI every time conditions change
  4. Follow beam position and current strip charts for 2C21 and 2C24 nA BPMs, make log entry of strip chartes


Important Notes:

  1. 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.

General Instructions:

DAQ RECOVERY

If DAQ crashed/broken:

  1. For every daq crash login into clondaq3 as a clasrun then run the following command
    • clasrun@clondaq3:clasrun> save_DAQ_logs.pl (See [1])
  2. Reboot DAQ completely..
  3. If the procedure fails to restore DAQ, call Sergey (DAQ on call) without any further disturbing the DAQ status.


Establishing Acceptable Beam Conditions:

  1. Make sure CLAS12 is OFF When Beam is Turned On for the First Time After long Down.
  2. First send beam to the tagger 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 ([2],[3])
      • Positions on both harps should be within 1mm
      • Width on 2C21 should be <~0.1+/-0.05 mm
      • Width on tagger harp (2C24) <~0.35 +/- 0.1mm
    • Halo counters UPS-L/R and TAG-L/T/T2 should be ~few Hz/nA [4]
  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 <~0.25 mm, Y-width <~ 0.25 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
    • Once all the above is achieved, turn first CLAS12 ECal HV ON and monitor and log ECal rates

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.
  5. With any issue contact On-Call Experts or RC - do not spend more than 15-20 min trying to fix the problem

Every Run:

  1. Log screenshots of:
    • main scaler_hps display
    • Detector occupancy plots
    • Trigger rate gui


Clas12design.png