RE: TOFr HV

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From: Xu, Zhangbu (xzb_at_bnl.gov)
Date: Mon Apr 07 2003 - 16:50:35 EDT

Hi, Geary:
  I am a little confused by the swaps. Could you please summarize
the results from the tests and what we can do to fix it if it is
indeed caused by humidity? Is there an alternative explanation
and how we can fix it?
Thanks!
           Zhangbu

-----Original Message-----
From: Geary Eppley
To: TOFp Operations
Sent: 4/7/2003 3:17 PM
Subject: TOFr HV

Hi,

I turned off TOFr HV after HVA+ started tripping every 15 minutes. The
next collisions are planned for ~1 am Wednesday. I'll switch HVA+ and
HVB+
before then if there is a controlled access so we don't trip every 15
minutes during the beam collisions Wednesday am.

Then in the access Wednesday during the day, we'll put HVB+ back into
the
2nd output and HVA+ into the 3rd.

Geary

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