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Re: HV board / ASIC
Hi Yves,
That sounds very reasonable. I will take a look at the document.
Thanks,
Fernando
Yves Van Haarlem wrote:
> I am sorry: a gas gain of 1.5.10^5 at 1800V
>
> /--------------------------------
> / Yves Van Haarlem
> _--~~--_ /
> /~/_| |_\~\ / Carnegie Mellon University
> |____________| / Department of Physics
> |[][][][][][]|:= / Wean Hall room 8404
> __| __ |__ \ Pittsburgh, PA 15213
> | ||. | == | | \ USA
> (| ||__| == | |) \
> | |[] [] == | | \ Tel.: +1 412 268-6949
> | |____________| | \ +1 412 641-9252
> /__\ /__\ \ Fax.: +1 412 681-0648
> ~~ ~~ \-----------------------------------
>
> On Wed, 15 Oct 2008, Yves Van Haarlem wrote:
>
>> 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
>>>> _--~~--_ /
>>>> /~/_| |_\~\ / Carnegie Mellon University
>>>> |____________| / Department of Physics
>>>> |[][][][][][]|:= / Wean Hall room 8404
>>>> __| __ |__ \ Pittsburgh, PA 15213
>>>> | ||. | == | | \ USA
>>>> (| ||__| == | |) \
>>>> | |[] [] == | | \ Tel.: +1 412 268-6949
>>>> | |____________| | \ +1 412 641-9252
>>>> /__\ /__\ \ Fax.: +1 412 681-0648
>>>> ~~ ~~ \-----------------------------------
>>>
>>
begin:vcard
fn:Fernando J. Barbosa
n:Barbosa;Fernando J.
org:Jefferson Lab
adr:Suite #10, 12B3;;12000 Jefferson Ave.;Newport News;VA;23606;USA
tel;work:757-269-7433
version:2.1
end:vcard