HV for ToFr

From: hfchen_at_ustc.edu.cn
Date: Fri Apr 04 2003 - 04:32:36 EST

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Hello, Geary,

>From the Rate-I current plots Bill made, it tells that during the first
few minuts of beam injection the HV current sometime pulseing up to Micro
amp. I worried it will hurt the chambers. Do you think it is better,
during the injection period we lower the HV, then when beam reach the flat
top we put on operation HV? (work as normal gas chambers.)

Could you tell me what current limit you set for HV supplier.

Dr. Wu Jian will arrive at New York on 11 April. His visa really took long
time.

Regards/Hongfang

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