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gas_handling_system [2013/12/26 14:41] pereira [In the S3 vault] |
gas_handling_system [2013/12/26 14:51] pereira [In the S3 vault] |
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* 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 ===== |