LLO HAM7 chamber: Raman, XRF and next round of FTIR Results
- Document #:
- LIGO-E2100134-v7
- Document type:
- E - Engineering documents
| LIGO-E2100134-v6
05 May 2021, 08:44 |
| LIGO-E2100134-v4
22 Apr 2021, 10:58 |
- Abstract:
- Following the initial FTIR results taken in HAM7 E2100122, 10x Hexane FTIR samples, (Labelled S1, S2...., S10), were taken in various grid locations. 2 of these samples were taken after attempting to clean with 2-propyl and DI water.
One of the attached documents lists the 10 areas we swabbed. eg Swab area 1 = vial labelled S1, and so on
4 additional Hexane test samples (using FTIR sample swabs). (Labelled T1, T2, T3, T4), were taken to use to attempt to determine the source of the contamination.
1 control was kept with each kit
The vials were shipped out in the same "kits" that they arrived (eg the vials that arrived in kit #1 and that we used were shipped out in kit #1 and so on).
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Dear LIGO
I’ve attached the report for E2100134-v4. As previously mentioned, there was metallic particulates and dirt present along with higher than normal amounts of aliphatic hydrocarbon and ester in the samples. Moving forward, the cleaning process remains the same as previously stated by Jerami. To clean particulate contaminates, use acetone followed by IPA via rinsing and/or wiping until you’ve reached the desired particulate cleanliness level. Let us know if you have any questions or concerns.
Thank you, Vanessa
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Vanessa Gomez
Analytical Chemistry & Materials Development
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~SYS COMMENT: BASED ON RAMAN / XRF results PARTICULATE CLEANING NOTES ABOVE TO BE CONSIDERED BY LIGO.
VAC APPROVAL OR NOT: APPROVAL NOT REQUIRED. COMMENT, USE AS INPUT TO CLEANING PROCEDURE.
- Files in Document:
- Other Files:
- Topics:
- Authors:
- Notes and Changes:
- v7: Includes v6 report from JPL in other files AND Raman, XRF and next round of FTIR from JPL on HAM7.
v6: Version with results from JPL Chemical Characterization of Contaminates
v5: Ignore...
v4: version for JPL
v3: Version from Matt H Duplicate (please ignore)
v2: Version from Matt H Duplicate (please ignore)
v1: Version from Matt H
- Related Documents:
- Referenced by: