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  HEPHY logbook for testbeam at SPS October 2011  Not logged in ELOG logo
Message ID: 46     Entry time: Fri Oct 7 18:40:07 2011
Author: Christian Irmler 
Project: BELLE 
Subject: Origami stack cooled 
Run Number: cal009 
Events: 83800 
StartTime: 07.10.2011 18:35:04  
EndTime: 07.10.2011 19:31:51 
Data: Good 

CO2 cooling: P_TT_4: 14.9 bar, mf=0.9 g/s
beam on; xy table position x=306 y=76.5

I=18.6µA; old I2C settings; corrected trigger delay (htr); adjusted front-end voltages 

CO2 pressure reduced to 14.9 bar --> temp is about 4K colder
Temp. at pipe inlet (K7) = -18°C
Temp. at pipe outlet (K8) = -21.8°C

used multi6 config instead of single hit config (cern11_origami_cooled2_multi6.cfg)

07.10.2011  18:36:07  event=1581  rate=31events/s temp/curr=33.9/-05.3 33.9/-05.6 33.9/-06.6 32.8/001.4 32.8/001.9 32.8/018.1

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