Re: bad channels (fwd)

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From: hfchen_at_ustc.edu.cn
Date: Sun Jun 01 2003 - 20:32:14 EDT


Hello, Geary, Lijuan,

The reason I put channel 65, 66 as unstable is follow Lijuan's file
4111062-TDC.

> Hello Lijuan and Bill,
>
> I added a column to Hongfang's email below so the channels are numbered
> 1-72. The list from Hongfang more or less corresponds to a list I got
> from Bill except for channel 65 and 66. What is wrong with those?
>
> Also the list from Hongfang has most channels unreliable from 33 to 40.
> That would indicate something wrong with a TDC, not a module. (The TDC
> is channels 33-40, the module is channels 31-36). Has anyone seen
> anything wrong in channels 31 and 32? Has Bill seen "weird" behavior in
> channels 37 and 40? Channel 38 was disconnected for most of the run
> because the output from the re-discriminator on the platform was hot.
>
> Geary
>
> ---------- Forwarded message ----------
> Date: 31 May 2003 10:04:26 +0800
> From: hfchen_at_ustc.edu.cn
> To: eppley_at_physics.rice.edu, ruanlj_at_rcf.rhic.bnl.gov
> Cc: wujian_at_ustc.edu.cn
> Subject: Re: bad channels
>
> Hello, Geary,
>
> According my informations from LIjuan
>
> the bad channels are:
>
> MRPC pad/ TDC Disc
> channel (start from 48) (Start from 7)
> channel #
> P3/m2 2 52 11 5
> p5/m4 2 64 23 17
> 5 61 20 14
> p11/m9 6 84 43 37
>
> There are some channels not stable:
> P10/m8 1 83 42 36
> 2 82 41 35
> 4 80 39 33
> P11/m9 3 87 46 40
> 5 85 44 38
>
> P26/m23 1 113 72 66
> 2 112 71 65
>
> Lijuan could check with her data.
>
> Hongfang
>
>
>> Hi
>>
>> could some one send us the list of bad channels to check out?
>>
>> Geary


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