[Dsg-halla_gem] [EXTERNAL] Re: Request for one more flow output on BB gas

[Ezekiel Wertz]

So the 400-500 cc/min is for an entire GEM layer. But if you just wanted to
do a single INFN GEM module the flow rate in that will be something like
maybe 100-200 cc/min per module. So a low flow channel should be fine.

Zeke

On Mon, Oct 18, 2021 at 2:04 PM Anuruddha Rathnayake <adr4zs at virginia.edu>
wrote:

> Hi Holly,
>
> I think you need a low flow channel.
> That's what we use for the back tracker modules (4 low flow channels).
>
> Best,
> Anu
>
>
> On Mon, 18 Oct 2021, 13:59 Marc Mcmullen, <mcmullen at jlab.org> wrote:
>
>> So this is either an INFN or a new UVA large volume GEM. We will discuss
>> the matter and update you with a plan.
>>
>> Regards,
>> Marc
>> ------------------------------
>> *From:* Holly Szumila-Vance <hszumila at jlab.org>
>> *Sent:* Monday, October 18, 2021 1:54 PM
>> *To:* Marc Mcmullen <mcmullen at jlab.org>; dsg-halla_gem at jlab.org <
>> dsg-halla_gem at jlab.org>
>> *Subject:* Re: Request for one more flow output on BB gas
>>
>>
>> We need about 400-500 sccm. I think this is the hi flow?
>>
>>
>>
>> *From: *Marc Mcmullen <mcmullen at jlab.org>
>> *Date: *Monday, October 18, 2021 at 1:51 PM
>> *To: *Holly Szumila-Vance <hszumila at jlab.org>, "dsg-halla_gem at jlab.org" <
>> dsg-halla_gem at jlab.org>
>> *Subject: *Re: Request for one more flow output on BB gas
>>
>>
>>
>> Hi Holly,
>>
>>
>>
>> Which type of GEM channels is needed (High or Standard), I'll discuss
>> this with the DSG manager and our gas system expert so we can determine
>> what is needed to expand the 8 channels system.
>>
>>
>>
>> Regards,
>>
>> Marc
>> ------------------------------
>>
>> *From:* Dsg-halla_gem <dsg-halla_gem-bounces at jlab.org> on behalf of
>> Holly Szumila-Vance <hszumila at jlab.org>
>> *Sent:* Monday, October 18, 2021 12:48 PM
>> *To:* dsg-halla_gem at jlab.org <dsg-halla_gem at jlab.org>
>> *Subject:* [Dsg-halla_gem] Request for one more flow output on BB gas
>>
>>
>>
>> Hi,
>>
>>
>>
>> I’d like to request one more flow output channel on the BB gas side so
>> that we could potentially hook up one GEM to its own gas line. Please let
>> me know how and when this work could be done.
>>
>>
>>
>> Thanks,
>>
>> Holly
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