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gas_handling_system [2019/03/13 12:01]
pereira [LabView Control Program for focal plane detectors] 		gas_handling_system [2019/10/19 12:08]
pereira [Tracking Gas bottles pressures]
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 ===== General Information for focal-plane gas handling system ===== ===== General Information for focal-plane gas handling system =====
-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:s800fp-win7.nscl.msu.edu'' 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:s800fp.nscl.msu.edu'' 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 Labview software communicates with a MKS gas handling system through a Moax Nport 5110 terminal server attached to the bottom of the focal-plane chamber. This terminal server has a hostname s800ghts.nscl.msu.edu, which currently has an static IP address assigned to it (10.65.40.135). When running Labview, go to the Initialization tab and make sure that the terminal server address (IP) and port number (2001) is correct. The Labview software communicates with a MKS gas handling system through a Moax Nport 5110 terminal server attached to the bottom of the focal-plane chamber. This terminal server has a hostname s800ghts.nscl.msu.edu, which currently has an static IP address assigned to it (10.65.40.135). When running Labview, go to the Initialization tab and make sure that the terminal server address (IP) and port number (2001) is correct.
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   * A log file should be specified before operating the gas handling system   * A log file should be specified before operating the gas handling system
       * A window automatically pops up asking for the name of the log file when the program starts       * A window automatically pops up asking for the name of the log file when the program starts
-      * Use the number of the current experiment (or "test") as the name of the log file and save in file /intranet/files/departments/operations/s800/TO_BE_SPECIFIED+      * Use the number of the current experiment (or the date) as the name of the log file and save in the default directory **/projects/s800/Gas logs**
       * The On indicator next to Is VI running? will flash until a log file is specified and the program initiates communications with the hardware       * The On indicator next to Is VI running? will flash until a log file is specified and the program initiates communications with the hardware
  
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 ===== Tracking Gas bottles pressures ===== ===== Tracking Gas bottles pressures =====
 +A rather conservative rule of thumb that helps estimate how much gas will be consumed during a given period of time assumes that the S800 IC detector consumes **~10 psi/day of P10**. Likewise, the CRDCs consume **~10 psi/day of CF4** and **~0.07 lb/day of Isobutane**.
 +
 +
 In order to track the status of the gas bottles for the [[Detectors#Ionization Chamber|ionization chamber]], the  [[Detectors#Cathode Readout Drift Chambers (CRDC)|CRDCs]], and the [[Detectors#[Tracking Parallel Plate Avalanche Counters (TPPAC)]|TPPAC]], it is possible to monitor their remaining pressures from Barney. Just open the **A1900** page, then **Tools**, and then **Gas Status**. The following window will be displayed: In order to track the status of the gas bottles for the [[Detectors#Ionization Chamber|ionization chamber]], the  [[Detectors#Cathode Readout Drift Chambers (CRDC)|CRDCs]], and the [[Detectors#[Tracking Parallel Plate Avalanche Counters (TPPAC)]|TPPAC]], it is possible to monitor their remaining pressures from Barney. Just open the **A1900** page, then **Tools**, and then **Gas Status**. The following window will be displayed:
  
gas_handling_system.txt · Last modified: 2023/05/11 11:29 by pereira

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