venting_pumping_intermediate_image_box
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venting_pumping_intermediate_image_box [2018/12/19 11:42] pereira [Filling Intermediate-image delay PPAC] |
venting_pumping_intermediate_image_box [2018/12/19 11:48] pereira [Filling Intermediate-image delay PPAC with gas] |
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| * [[#Vent Intermediate-image chamber|Venting Intermediate-image chamber]] | * [[#Vent Intermediate-image chamber|Venting Intermediate-image chamber]] | ||
| * [[#Pumping Intermediate-image chamber]] | * [[#Pumping Intermediate-image chamber]] | ||
| - | * [[#Filling Intermediate-image delay PPAC]] | + | * [[#Filling/Removing gas in Intermediate-image delay PPAC]] |
| ===== General information ===== | ===== General information ===== | ||
| Line 78: | Line 78: | ||
| Requirements: | Requirements: | ||
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| + | ==== Filling Intermediate-image delay PPAC with gas ==== | ||
| * Verify that PPACs are not biased: | * Verify that PPACs are not biased: | ||
| * Check that the detectors are unbiased by opening the [[HV bias|HV GUI]] | * Check that the detectors are unbiased by opening the [[HV bias|HV GUI]] | ||
| Line 97: | Line 99: | ||
| * The valves status will be: V1 (open), V2 (closed), V3 (closed), V4 (open), V5 (closed), V6 (closed, I214V_NCL (enabled) | * The valves status will be: V1 (open), V2 (closed), V3 (closed), V4 (open), V5 (closed), V6 (closed, I214V_NCL (enabled) | ||
| * You can now turn on the detectors | * You can now turn on the detectors | ||
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| + | ==== Removing gas from Intermediate-image delay PPAC ==== | ||
| + | * Verify that PPACs are not biased: | ||
| + | * Check that the detectors are unbiased by opening the [[HV bias|HV GUI]] | ||
| + | * Notify the system of the bias-off state by selecting the " | ||
| + | * Verify that PPACs are in automatic mode with gas flowing (**S3_Gas_Handling**) | ||
| + | * The "GH System Status box should read "Auto Gas Flow Estab" | ||
| + | * If gas is flowing but the system is not in the automatic mode, consult the Beam Physicists or Device Physicist. This typically requires to verify that the system is in a controlled status. In particular, the " | ||
| + | * I214 Gas Sup V1 (open) | ||
| + | * Gas Lin Pmp out V2 (closed) | ||
| + | * Flow Bypass V3 (closed) | ||
| + | * Det Return V4 (open) | ||
| + | * Det Bypass V5 (closed) | ||
| + | * Chmbr Bypass (closed) | ||
| + | * I1214V_NCL (enabled) | ||
| + | * PanelMate box "Gas Removal Control" | ||
| + | * Valve V2 (Gas lin pmp out) will be opened and I214V_NCL will change from closed to " | ||
venting_pumping_intermediate_image_box.txt ยท Last modified: 2024/01/12 09:37 by noji
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