gas_handling_system
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| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
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gas_handling_system [2013/12/26 14:49] pereira [In the S3 vault] |
gas_handling_system [2017/01/22 16:56] pereira old revision restored (2017/01/22 16:55) |
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| ====== Detector gas handling system ====== | ====== Detector gas handling system ====== | ||
| + | * [[#General information]] | ||
| + | * [[#LabView Control Program]] | ||
| + | * [[# | ||
| + | * [[#Filling Ion Chamber with Gas]] | ||
| + | * [[#Filling CRDC1 and CRDC2 with Gas]] | ||
| + | * [[#Removing Gas from Focal Plane Detectors]] | ||
| + | * [[#Tracking Gas bottles pressures|Tracking Gas bottles pressures from Barney]] | ||
| + | * [[# | ||
| ===== General Information ===== | ===== General Information ===== | ||
| Required controls and monitoring | Required controls and monitoring | ||
| - | | + | * LabView gas handling system |
| - | * PanelMate **S800vac.MT2 page 07**: Focal Plane Detector | + | * PanelMate **S800vac.ui page 07**: Focal Plane Detector |
| - | The gas handling systems for both Focal Plane gas-filled detectors – the [[Detectors# | + | The gas handling systems for both Focal Plane gas-filled detectors – the [[Detectors# |
| 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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| * Once both detectors are empty, this application can be closed with the “X” button on the upper right corner of the window. | * Once both detectors are empty, this application can be closed with the “X” button on the upper right corner of the window. | ||
| - | {{:wiki:GasHandlingSystem-panel.jpg? | + | {{:wiki:gas-handling-labview.png? |
| Line 31: | Line 39: | ||
| ==== In Data-U6 ==== | ==== In Data-U6 ==== | ||
| - | * Ensure **I265GV** is closed (in PanelMate **S800vac.MT2 page 07**) to isolate focal plane vacuum chamber from the rest of the beamline | + | * Ensure **I265GV** is closed (in PanelMate **S800vac.ui page 07**) to isolate focal plane vacuum chamber from the rest of the beamline |
| * Confirm that the focal plane chamber is under vacuum | * Confirm that the focal plane chamber is under vacuum | ||
| * Confirm that the only open gas handling system valves are **4, 5, 6, 20, 21, and 22** | * Confirm that the only open gas handling system valves are **4, 5, 6, 20, 21, and 22** | ||
| Line 39: | Line 47: | ||
| * Ensure that the gas handling system roughing pump is running and has a good vacuum | * Ensure that the gas handling system roughing pump is running and has a good vacuum | ||
| * The pump sits on the floor under the focal plane behind the south support post | * The pump sits on the floor under the focal plane behind the south support post | ||
| - | * The display unit for the pressure at the pump has a needle indicator and is mounted under the focal plane on the south support post | + | * The display unit for the pressure at the pump has a needle indicator and is mounted under the [[Stations# |
| * Ensure that the main valves on the gas bottles are open (see pictures below) | * Ensure that the main valves on the gas bottles are open (see pictures below) | ||
| * Ensure that the gas bottles are not empty | * Ensure that the gas bottles are not empty | ||
| - | * The gas regulators are not normally adjusted. They should all be set to provide a pressure around 20 psi. | + | * The gas regulators are not normally adjusted. They should all be set to provide a pressure around 20 psi |
| - | * The bottle supplying the P-10 gas for the [[Detectors# | + | * The bottle supplying the P-10 gas for the [[Detectors# |
| - | * The bottle supplying CF< | + | * The bottle supplying CF< |
| - | * The bottle supplying isobutane (C< | + | * The bottle supplying isobutane (C< |
| {{: | {{: | ||
| Line 54: | Line 62: | ||
| * Follow instructions under [[# | * Follow instructions under [[# | ||
| - | * 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. | + | * Monitor the pressure of the focal plane vacuum chamber (as read out via the I264IG ion gauge in PanelMate **S800vac.ui 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 | ||
| Line 84: | Line 92: | ||
| * Follow instructions under [[# | * Follow instructions under [[# | ||
| - | * 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. | + | * 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 5 x 10< |
| * 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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| * Open **valves 6 and 22** | * Open **valves 6 and 22** | ||
| - | * Enter vault and close main valves on gas bottles: | + | * Enter S3 vault and close main valves on [[# |
| + | ===== Tracking Gas bottles pressures ===== | ||
| + | In order to track the status of the gas bottles for the [[Detectors# | ||
| + | {{: | ||
gas_handling_system.txt · Last modified: 2023/05/11 11:29 by pereira
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