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documents:

  1. LCLS Procedure for Vacuum Qualification RGA Scans
  2. LCLS Vacuum Policy
  3. MKS RGA hardware manual

  4. MKS RGA software manual

  5. Amanda's doc: RGA Cart Maintenance and Operation


max pressure for RGA use: 

Quoth RGA the manual
"Quadrupole analysers cannot be operated at pressures higher than 5 x 10-4 Torr and in the case of dual detector analysers (faraday and electron multiplier detectors), the multiplier should not be used at pressures above 7.6 x 10-6 Torr." we need multiplier data to qualify, so i simplified that down to:"max pressure for RGA use: 7.6E-6 Torr"



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Start up and shut down procedures:

General

prep

Bring an N2 cylinder, regulator, and clean hose. Attach that to the cart.

begin venting the cart with the N2

remove the blank at the end of the hose

Attach the cart to the to-be-qualified chamber

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, but do not(!) valve in

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Start up and shut down procedures:

General


Cart specific

Carts 1 & 2

Cart startup procedure:


Carts 3 & 4

Bring an N2 cylinder, regulator, and clean hose. Attach that to the cart.

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Cart startup procedure:

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1. Plug in the cart

2. Hit start (F1, circled in pic). This will turn on the roughing and turbo

      1. Open the gate valve on top of the turbo
      2. When turbo hits ~200Hz: Turn on the CCG
      3. Wait for turbo to settle at 1000Hz and 1A (info on display).

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