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gas_handling_system [2018/04/11 16:11]
pereira [In Data-U6] 		gas_handling_system [2018/12/30 10:46]
pereira [Detector gas handling system]
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 ====== Detector gas handling system ====== ====== Detector gas handling system ======
  
-  * [[#General information]] +  * [[#General information for focal-plane gas handling system]] 
-  * [[#LabView Control Program]] +  * [[#LabView Control Program for focal plane detectors]] 
-  * [[#Preparation of Gas bottles|Preparation of Gas bottles for filling of detectors]]+  * [[#Preparation of Gas bottles for filling of focal-plane detectors]]
   * [[#Filling Ion Chamber with Gas]]   * [[#Filling Ion Chamber with Gas]]
   * [[#Filling CRDC1 and CRDC2 with Gas]]   * [[#Filling CRDC1 and CRDC2 with Gas]]
   * [[#Removing Gas from Focal Plane Detectors]]   * [[#Removing Gas from Focal Plane Detectors]]
 +  * [[Venting/pumping Intermediate Image box#Filling/Removing gas in Intermediate-image delay PPAC|Filling and removing gas of Intermediate-image delay PPACs]]
   * [[#Tracking Gas bottles pressures|Tracking Gas bottles pressures from Barney]]   * [[#Tracking Gas bottles pressures|Tracking Gas bottles pressures from Barney]]
   * [[#Replacing Gas bottles]]   * [[#Replacing Gas bottles]]
  
-===== General Information ===== +===== General Information for focal-plane gas handling system =====
-Required controls and monitoring +
-  * LabView gas handling system application **FPGHS_TCPIP-II.vi**  +
-  * PanelMate **S800vac.ui 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 from the desktop of computer [[Software#u6pc5 (data U6)|u6pc5]], by clicking in the icon **S800 Vault PC**, or by typing ''xfreerdp /u:s800 /v:35.9.56.104'' from a Linux terminal. A terminal will pop-up asking for the s800 password. Once the virtual session in S800FP-PC is open, the gas handling system can be opened by clicking in the corresponding icon on the desktop **FPGHS_TCPIP-II**. This icon opens the local directory ''C:/Users/s800/Desktop/FPGHS_TCPIP-II''. Once there, run the Labview executable **FPGHS_TCPIP-II.exe**.  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 from the desktop of computer [[Software#u6pc5 (data U6)|u6pc5]], by clicking in the icon **S800 Vault PC**, or by typing ''xfreerdp /u:s800 /v:35.9.56.104'' from a Linux terminal. A terminal will pop-up asking for the s800 password. Once the virtual session in S800FP-PC is open, the gas handling system can be opened by clicking in the corresponding icon on the desktop **FPGHS_TCPIP-II**. This icon opens the local directory ''C:/Users/s800/Desktop/FPGHS_TCPIP-II''. Once there, run the Labview executable **FPGHS_TCPIP-II.exe**. 
  
 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
  
-===== LabView Control Program =====+Required controls and monitoring 
 +  * LabView gas handling system application **FPGHS_TCPIP-II.vi**  
 +  * PanelMate **S800vac.ui page 07**: Focal Plane Detector 
 + 
 +===== LabView Control Program for focal plane detectors =====
 To start the gas handling system control application, click on the LabView icon **FPGHS_TCPIP_Corrected_V01** on the [[Software|S800FP-PC]] desktop. To start the gas handling system control application, click on the LabView icon **FPGHS_TCPIP_Corrected_V01** on the [[Software|S800FP-PC]] desktop.
  
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-===== Preparation of Gas bottles =====+===== Preparation of Gas bottles for filling of focal-plane detectors =====
  
 ==== In Data-U6 ==== ==== In Data-U6 ====
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           * Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system           * Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system
  
-  * Close **valve 6**+  * Close **valves 6** and **7**
  
   * Open **valve 2**; the flow reading at MFC #1 should jump momentarily   * Open **valve 2**; the flow reading at MFC #1 should jump momentarily
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           * Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system           * Click the **Valves** tab at the top of the LabView window to return to the overview display of the gas handling system
  
-  * Close **valve 22**+  * Close **valves 22** and **23**
    
   * Open **valves 10 and 15**   * Open **valves 10 and 15**
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   * Open **valves 5 and 21**   * Open **valves 5 and 21**
  
-  * **IMPORTANT:** CLOSE **VALVE 25** to protect CRDCs from Ion Chamber pressure+  * **IMPORTANT**: Before opening valve 8 (next step), CLOSE **VALVE 25** to protect CRDCs from Ion Chamber pressure
  
   * Empty Ion Chamber to a pressure at or below the pressure of the CRDCs   * Empty Ion Chamber to a pressure at or below the pressure of the CRDCs
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   * Close **valves 8 and 24**   * Close **valves 8 and 24**
  
-  * Open **valves 6 and 22**+  * Open **valves 6, 7, 22 and 23**
  
   * Enter S3 vault and close valves downstream of regulators in [[#Preparation of gas bottles|gas bottles]]: P-10 and CF<sub>4</sub> (tetrafluoromethane). Close the main valve for the C<sub>4</sub>H<sub>10</sub> bottle.   * Enter S3 vault and close valves downstream of regulators in [[#Preparation of gas bottles|gas bottles]]: P-10 and CF<sub>4</sub> (tetrafluoromethane). Close the main valve for the C<sub>4</sub>H<sub>10</sub> bottle.
gas_handling_system.txt · Last modified: 2023/05/11 11:29 by pereira

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