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== Run Plan: Dec. 4 - Dec. 9 ==
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== Run Plan: Dec. 7 - Dec. 9 ==
'''<font size=3>Upstream beamline commissioning and beam optics and stability studies using the tagger dump. The goal is to get CW, stable beam to the Hall-B tagger dump. </font>'''
+
'''<font size=3> Beamline commissioning studies using the Hall B dump, followed by studies of the ECal and Trigger. The goal is to get usable CW beam to the Hall-B dump, set up the chicane, and begin to study beam backgrounds and trigger rates. </font>'''
  
* Re-establish CW 1 pass beam to the Hall-B tagger dump
+
* Establish CW 1 pass beam to the Hall-B dump, including checkout of all new beamline components, BPMs, quads, correctors, and harps.
* Work with MCC crew to establish small size stable beam at the tagger - beam parameters <font color=red> X/Y width ~<100 micron, and S/N on halo counters from the harp wire >10E4</font>.
+
* Work with MCC crew to establish small size stable beam at the alcove harp - beam parameters <font color=red> sig X ~ 150 micron, sig Y ~50 micron, with low noise in the downstream halo counters and ecal.  
* Perform harp scans using 2C21 and tagger (2C24) harps.  
+
* Perform harp scans using 2H02 harp. Optimize halo counter voltages as needed.
*Then, ask to change the optics to get HPS requested, "ribbon", beam at 2C24 harp, <font color=red> X~150 micron,  Y<50 micron</font>.
+
* Once established, commission the chicane magnet, including a study of noise rates (halo counters + ecal) vs B field. (We may need to run slightly lower than nominal B for our given beam energy to afford adequate clearance to the 3 inch beam pipe connected to the new target assembly.The beam pipe must accommodate both straight through and Frascati bent beams.)
* Perform harp scans using 2C21 and tagger (2C24) harps.
+
* Commission the HPS target, including measuring noise rates in the Ecal and halo counters vs beam current.
** <font color=blue>In order to do above program, when CW beam is established, holo counters and harps must be first calibrated.
+
* If time allows, begin commissioning the Ecal and trigger with beam on target.
** It may take multiple harp scans to set harp motion limits and halo counter PMT gains.
 
 
** See <b>[[Media:dec4_beamline_commissioning.pdf|Full PDF, Click Here]]</b>
 
** See <b>[[Media:dec4_beamline_commissioning.pdf|Full PDF, Click Here]]</b>
 
** With any issue, contact Beamline Expert or RC.</font>
 
** With any issue, contact Beamline Expert or RC.</font>

Revision as of 19:43, 6 December 2014

[edit]

RC: John Jaros

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

PDL: Harut Avagyan

Every Shift:

  1. Follow run plan as outlined by RC
  2. Keep shift summery up-to-date in HBLOG
  3. Document any beam condition change and send scaler GUIs to HBLOG
  4. Continuously check quality of data

Every Run:

  1. a
  2. b
  3. c
  4. d


MCC Daily Meetings


Run Plan: Dec. 7 - Dec. 9

Beamline commissioning studies using the Hall B dump, followed by studies of the ECal and Trigger. The goal is to get usable CW beam to the Hall-B dump, set up the chicane, and begin to study beam backgrounds and trigger rates.

  • Establish CW 1 pass beam to the Hall-B dump, including checkout of all new beamline components, BPMs, quads, correctors, and harps.
  • Work with MCC crew to establish small size stable beam at the alcove harp - beam parameters sig X ~ 150 micron, sig Y ~50 micron, with low noise in the downstream halo counters and ecal.
  • Perform harp scans using 2H02 harp. Optimize halo counter voltages as needed.
  • Once established, commission the chicane magnet, including a study of noise rates (halo counters + ecal) vs B field. (We may need to run slightly lower than nominal B for our given beam energy to afford adequate clearance to the 3 inch beam pipe connected to the new target assembly.The beam pipe must accommodate both straight through and Frascati bent beams.)
  • Commission the HPS target, including measuring noise rates in the Ecal and halo counters vs beam current.
  • If time allows, begin commissioning the Ecal and trigger with beam on target.
Beam
Energy ~2.0 GeV
Current < 200.0 nA CW
Position
X Y
~0 mm ~0 mm
Profile
X Y
< 0.1 mm < 0.1 mm
Target
#1 0 mm
Magnets
PS Current 0 A
Chicane Dipole #1 0 A
Chicane Dipole #2 0 A
DAQ
Configuration ___________________
Configuration file
Prescales
Thresholds
Events Per Run
Dead Time



AccumulatedCharge.png


Run Coordinator
X - Nov 19 Stepan Stepanyan
Nov 19 - Dec 3 Nathan Baltzell
Dec 3 - 9 John Jaros
Dec 9 - 22 Takashi Maruyama
Physics Division Liaison
X - Harut Avakian
DATE NAME