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gas_handling_system [2013/12/26 14:37] pereira [General Information] |
gas_handling_system [2014/11/18 11:37] pereira [Filling Ion Chamber with Gas] |
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Required controls and monitoring | Required controls and monitoring | ||
* **LabView gas handling system** application | * **LabView gas handling system** application | ||
- | * 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# | ||
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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? |
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==== 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** | ||
+ | * (Check section on [[vacuum control|vacuum control]] for further details.) | ||
==== In the S3 vault ==== | ==== In the S3 vault ==== | ||
* 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 | + | * 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 ion chamber is secured to the cross-brace of the south support for the focal plane chamber. | + | * 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< |
+ | {{: | ||
+ | {{: | ||
===== Filling Ion Chamber with Gas ===== | ===== Filling Ion Chamber with Gas ===== | ||
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* 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 | ||
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* 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 ===== | ||
+ | |||
+ | **NEEDS TO BE COMPLETED** | ||