Difference between revisions of "KPP Run"

Revision as of 08:48, 30 January 2017

Manuals

Procedures

JLab Logbooks

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
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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

Establish beam to the tagger yoke dump

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

Bring beam to FC:

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

Important Notes:

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:

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

Establishing Acceptable Beam Conditions:

Make sure CLAS12 is OFF When Beam is Turned For the First Time After long Down.
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 ([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]
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:

Follow run plan as outlined by RC
If any concern about beam stability, ask MCC if orbit locks are on (they should be).
Keep shift summary up to date in HBLOG. Record all that happens.
- Check on white board all scalers, strip charts and monitoring plots that need to be logged regularly
- Document any beam condition change and send scaler GUIs to HBLOG
- Fill out BTA hourly. Click "Load from EPICS" to automatically fill the left side.
- Fill and submit the shift checklist in the logbook
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 - do not spend more than 15-20 min trying to fix the problem

Every Run:

Log screenshots of:
- main scaler_hps display
- Detector occupancy plots
- Trigger rate gui

Webcams

Hall-B

Operation Safety Procedures

@@ Line 119: / Line 119: @@
 ===Establishing Acceptable Beam Conditions:===
-# <font color='red'>'''Make sure CLAS12 is OFF When Beam is Turned On for the First Time After long Down.'''</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>).
 #* Ask MCC to turn ON the tagger magnet and then deliver <10 nA beam.
-#* 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 [[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.
 #* 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
@@ Line 135: / Line 135: @@
 #* 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
-<!-- #* 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 <~0.25 mm, Y-width <~ 0.25 mm
 #* Check and log the beam spot on chromax viewer