Difference between revisions of "Beam Test Meeting Mon. Apr. 30, 2012"

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# [https://halldweb1.jlab.org/wiki/images/0/01/Meet120423-bcal-bias.pdf BCal Bias Scan] (Andrei & Sascha)
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# [https://halldweb.jlab.org/wiki/images/a/a1/Meet120430-bcal.pdf Update on BCal Test] (Andrei & Sascha)
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== Minutes ==
 +
 
 +
Hall B
 +
 
 +
- nothing to report
 +
 
 +
 
 +
FCAL
 +
 
 +
- data taken at 5 pass (5.5 GeV) in all 3 working modes (raw, pulse raw, pulse integral)
 +
 
 +
- attempted to take time extraction data, and failed, crate required rebooting
 +
 
 +
- Alex will speak with DAQ experts to see if the problem can be resolved
 +
 
 +
- no configuration changes on Wed, waiting for time extraction mode to work
 +
 
 +
BCAL
 +
 
 +
- data taken at 5 pass (5.5 GeV) including a voltage scan with a temporary fill for the leaking chiller
 +
 
 +
- several fills over last few days, see log book for more details
 +
 
 +
- linked presentation above shows motion of central value of adc spectra (beam energy change of 2.2X) of ~2.5X, suspect difference in temperature between runs is cause
 +
 
 +
- on Wed will go to 20 degree angle position
 +
 
 +
- hope for an access in next few days to refill chiller and drop temp to investigate peak motion

Latest revision as of 10:34, 31 March 2015

  1. Update on BCal Test (Andrei & Sascha)

Minutes

Hall B

- nothing to report


FCAL

- data taken at 5 pass (5.5 GeV) in all 3 working modes (raw, pulse raw, pulse integral)

- attempted to take time extraction data, and failed, crate required rebooting

- Alex will speak with DAQ experts to see if the problem can be resolved

- no configuration changes on Wed, waiting for time extraction mode to work

BCAL

- data taken at 5 pass (5.5 GeV) including a voltage scan with a temporary fill for the leaking chiller

- several fills over last few days, see log book for more details

- linked presentation above shows motion of central value of adc spectra (beam energy change of 2.2X) of ~2.5X, suspect difference in temperature between runs is cause

- on Wed will go to 20 degree angle position

- hope for an access in next few days to refill chiller and drop temp to investigate peak motion