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Entry  Wed Nov 7 11:43:29 2012, Steve, Update, PEM, high particle count ALART highpartcount.png
    Reply  Wed Nov 7 14:59:35 2012, Steve, Update, PEM, high particle count ALART & oplevs oplevs.png
       Reply  Tue Feb 5 10:18:54 2013, Steve, Update, PEM, high particle count ALART badair.png100d_airq.png
          Reply  Thu Jun 27 15:58:27 2013, Steve, Update, PEM, PSL enclosure particle counts 
Message ID: 8001     Entry time: Tue Feb 5 10:18:54 2013     In reply to: 7681     Reply to this: 8765
Author: Steve 
Type: Update 
Category: PEM 
Subject: high particle count ALART 

Quote:

Quote:

The BS camber is open only. We should close ASAP

Outside air quality is 1.7- 2.2  million particles  / cf min of 0.5 micron

 Air is still bad and the chambers are closed. Before lunch  Jamie repointed the PRM oplev. Manasa and I reset oplevs: BS and ITMX.

ETMX and ETMY are fine.

SRM and ITMY oplevs needs more work.

 The bad outside air quality is pushing up the inside counts.

The outside air is 5 million counts / cf min for 0.3 micron and 2 million counts / cf min for 0.5 micron particles

Do not open chamber over 10,000 counts / cf min of 0.5 micron

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