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Re: HV board / ASIC



Hi Fernando,

> Have you finalized the gain measurements for the CDC? I need to finalize the 
> ASIC specs by next week and will circulate a spec sheet for comments.
Yes, we redid the Fe-55 measurements with the %2 interposer and could not 
get rid of the 2nd peak. We also saw that comparing with the normal 
interposer we lose linearity for HV above 1750~V. The 
results are in GlueX-doc-1079-v8, we see a gas gain of 1.5.10^5.

Cheers,
 	Yves




>
> Regards,
> Fernando
>
>
>
>> 
>> Cheers and thanks,
>>     Yves
>> 
>> 
>>
>>                           /--------------------------------
>>                          /   Yves Van Haarlem
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>