S800 Documentation

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gas_handling_system [2013/12/14 16:15]
pereira [In Data-U6] 		gas_handling_system [2013/12/26 14:43]
pereira [In the S3 vault]
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   * PanelMate **S800vac.MT2 page 07**: Focal Plane Detector   * PanelMate **S800vac.MT2 page 07**: Focal Plane Detector
  
-The gas handling systems for both Focal Plane gas-filled detectors – the [[Detectors#Ionization Chamber|Ionization Chamber]] and the [[Detectors#Cathode Readout Drift Chambers (CRDC)|CRDCs]] – are remotely controlled via a single LabView application running on the computer [[Software|S800FP-PC]] in the S3 vault. This computer can be accessed remotely via the [[Software|devop1]] computer in data-U6.+The gas handling systems for both Focal Plane gas-filled detectors – the [[Detectors#Ionization Chamber|Ionization Chamber]] and the [[Detectors#Cathode Readout Drift Chambers (CRDC)|CRDCs]] – are remotely controlled via a single LabView application running on the computer [[Software|S800FP-PC]] in the S3 vault. This computer can be accessed remotely via the [[Software|u6pc5]] computer in data-U6.
  
 Note that since the same roughing pump drives the gas handling systems for both gas-filled detectors, extra precautions must be taken to protect one detector from the pressure of the other detector. The fact that the same pump drives both systems is not indicated on the graphics for the LabView control application Note that since the same roughing pump drives the gas handling systems for both gas-filled detectors, extra precautions must be taken to protect one detector from the pressure of the other detector. The fact that the same pump drives both systems is not indicated on the graphics for the LabView control application
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            * The bottle supplying isobutane (C<sub>4</sub>H<sub>10</sub>) for the CRDCs is secured to the south support post for the focal plane chamber. It sits on a scale for monitoring the isobutane consumption – the electronic display for the scale sits on the chiller unit under the focal plane chamber. It has a mechanical pressure gauge downstream of the regulator.             * The bottle supplying isobutane (C<sub>4</sub>H<sub>10</sub>) for the CRDCs is secured to the south support post for the focal plane chamber. It sits on a scale for monitoring the isobutane consumption – the electronic display for the scale sits on the chiller unit under the focal plane chamber. It has a mechanical pressure gauge downstream of the regulator. 
  
 +{{:wiki:gas-bottle3.jpg?300}}
 +{{:wiki:gas-bottle1.jpg?300}}
  
 ===== Filling Ion Chamber with Gas ===== ===== Filling Ion Chamber with Gas =====
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   * Follow instructions under [[#Preparation of Gas bottles|Preparation of Gas bottles]]    * Follow instructions under [[#Preparation of Gas bottles|Preparation of Gas bottles]] 
  
-  * Monitor the pressure of the focal plane vacuum chamber (as read out via the I264IG ion gauge) while detectors are being filled with gas; the pressure normally stays below 5E-5 Torr.+  * Monitor the pressure of the focal plane vacuum chamber (as read out via the I264IG ion gauge in PanelMate **S800vac.MT2 page 07**) while detectors are being filled with gas; the pressure normally stays below 5E-5 Torr.
  
   * Confirm that the detector pressure as indicated by the display labeled P.T. #1 reads below a couple of Torr   * Confirm that the detector pressure as indicated by the display labeled P.T. #1 reads below a couple of Torr
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   * Follow instructions under [[#Preparation of Gas bottles|Preparation of Gas bottles]]   * Follow instructions under [[#Preparation of Gas bottles|Preparation of Gas bottles]]
  
-  * Monitor the pressure of the focal plane vacuum chamber (as read out via the I264IG ion gauge) while detectors are being filled with gas; the pressure normally stays below 5E-5 Torr.+  * Monitor the pressure of the focal plane vacuum chamber (as read out via the I264IG ion gauge in PanelMate **S800vac.MT2 page 07**) while detectors are being filled with gas; the pressure normally stays below 5E-5 Torr.
  
   * Confirm that the detector pressure as indicated by the display labeled P.T. #2 reads below a couple of Torr   * Confirm that the detector pressure as indicated by the display labeled P.T. #2 reads below a couple of Torr
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 ===== Removing Gas from Focal Plane Detectors ===== ===== Removing Gas from Focal Plane Detectors =====
  
-  * Monitor the pressure of the focal plane vacuum chamber (as read out via the I264IG ion gauge) while gas is being removed from detectors; the pressure normally stays below 5E-5 Torr+  * Monitor the pressure of the focal plane vacuum chamber (as read out via the I264IG ion gauge in PanelMate **S800vac.MT2 page 07**) while gas is being removed from detectors; the pressure normally stays below 5E-5 Torr
  
   * Ensure that the system is in the normal state for flowing gas through the detectors   * Ensure that the system is in the normal state for flowing gas through the detectors
gas_handling_system.txt · Last modified: 2023/05/11 11:29 by pereira

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