Difference between revisions of "September 15, 2011"

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The view flag was lost. So the vacuum was broken. During that time:
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The view flag was lost. So the vacuum was broken to fix it. During that time:
* the radiator was reinstalled so we have now both 10um and 25 um of Al radiator.  
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* the radiator was reinstalled and recallibrated so we have now both 10um and 25 um of Al radiator.  
* radiator was recalibrated
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* The collimation system and target was more precisely realigned.  
* The collimation system and target was more precisely realign.  
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* The left and right side 90 detectors was realigned so now they are at the same level
* The to left and right side 90 detectors was realign so now they are at the same level
+
* the measurements of upstream and downstream geometry was made.
  
  
 
==Radiator calibration==
 
==Radiator calibration==
  
from the top start to count. The 25 um Al radiator will come first after 28 CCW turns and 10 um Al radiator will come second after 67 CCW turns.
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From the top start to count. The 25 um Al radiator will come first after 28 CCW turns and 10 um Al radiator will come second after 67 CCW turns.
  
[[File:Radiator calibration 9.15.11.png | 500px]]
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[[File:Radiator calibration correct 9.15.11.png | 400px]]
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==Upstream geometry measurements==
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[[File:Upstream measur 9.15.11.png | 1000px]]
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==Downstream geometry measurements==
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[[File:Downstream measur 9.15.11.png | 1000px]]
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Latest revision as of 20:14, 23 September 2011

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The view flag was lost. So the vacuum was broken to fix it. During that time:

  • the radiator was reinstalled and recallibrated so we have now both 10um and 25 um of Al radiator.
  • The collimation system and target was more precisely realigned.
  • The left and right side 90 detectors was realigned so now they are at the same level
  • the measurements of upstream and downstream geometry was made.


Radiator calibration

From the top start to count. The 25 um Al radiator will come first after 28 CCW turns and 10 um Al radiator will come second after 67 CCW turns.

Radiator calibration correct 9.15.11.png

Upstream geometry measurements

Upstream measur 9.15.11.png

Downstream geometry measurements

1000px


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