LIGO Document E960022-v18

LIGO Vacuum Compatibility, Cleaning Methods and Qualification Procedures

Document #:
LIGO-E960022-v18
Document type:
E - Engineering documents
Other Versions:
LIGO-E960022-v25
03 May 2023, 09:02
LIGO-E960022-v24
11 Mar 2016, 13:35
LIGO-E960022-v23
13 Apr 2012, 13:34
LIGO-E960022-v21
19 Jan 2012, 11:28
LIGO-E960022-v20
10 Dec 2011, 07:45
LIGO-E960022-v19
26 Sep 2011, 22:26
LIGO-E960022-v16
11 Jul 2011, 16:11
LIGO-E960022-v15
28 Jun 2011, 19:41
LIGO-E960022-v10
15 Mar 2011, 13:16
LIGO-E960022-v5
17 Feb 2010, 10:10
LIGO-E960022-x0
13 Jul 2009, 08:52
Abstract:
This document sets forth the procedures and standards by which materials and parts to be used in LIGO interferometers may be qualified and assayed for compatibility.
Authors:
Notes and Changes:
v18 change:
• Added general stipulations in section 12.2 such as for design applications where dimensional control is extremely important or tolerances are exceedingly tight, it is the responsibility of the design engineer to (a) establish a basis for baking parts at temperatures lower than the default temperatures recommended herein, and (b) get a waiver for a lower temperature bake from the LIGO Vacuum Review Board.
• Corrected indium entry
• Combined copper and copper alloys (such as aluminum bronze, phosphor bronze and beryllium copper) into a single section

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