Follow up on note with some additional information than that posted by Justin Bergman re: talk by Calum on Contamination Control on Friday 27th June at LHO.

1) LIGO-T1400024: Airborne Particle Counters (Handheld) - General Instructions and LIGO use

Jeff has now got 3 to 4 hand-held particle counters avaailble for sign out at the contamination area (on our right as you walk down Dycem flooring towards LVEA from cleaning area). An additional 4 unit are on order (2x for hand-held use and 2x to replace broken plumbed in units.) Convert and report all numbers collected in particles per cubic foot (#/ft3), or particles per cubic meter (#/m3) of air sampled. Jeff has the hand-held particles counters set to display particles per cubic foot (#/ft3) i.e. the paticle counter is taking care of the conversion etc ... Just to be sure please include a picture (when you can) of the particle counter screen.

2) LIGO-E1400029: LIGO, Contamination Control Training Material

Level 1 and level 2 are required reading. Most if not all of you have read these at some point. While this will be compulsory for all new staff and a refresher course will be offered soon if you feel you are in need of some additional guidance now please read and review the following: -

LEVEL I General Entry Cert to access any clean room space- All workers
LIGO-E0900047: LIGO Contamination Control Plan (PAGES 1 THROUGH 27 ONLY.)

LEVEL II Chamber Entry - in chamber workers
All documents in section I above plus
LIGO-E1201035: aLIGO Chamber Entry & Exit Procedures &
LIGO-T1400024: Particle Counters - Technical Note on How to use in the field

If you wanted to check agasint what you have just read you could also have a go at our quiz, see: -

LIGO-T1400177: aLIGO Contamination Control Quiz