[Dsg-rich] RICH N2 Flow during holidays

[Marc McMullen]

Hi Jen,

Could you let me know the status on this?

Thanks,

Marc


On 12/6/2017 10:03 AM, Jennifer Williams wrote:
> Thanks for the heads up.
> I submitted the ODH form online for approval.
> Jen
>
>
> ----- Original Message -----
> From: "Marc McMullen" <mcmullen at jlab.org>
> To: "Jennifer Williams" <jennifer at jlab.org>, "dsg-rich" <dsg-rich at jlab.org>
> Cc: jbrock at jlab.org, "Matthew Marchlik" <marchlik at jlab.org>
> Sent: Tuesday, December 5, 2017 11:05:08 AM
> Subject: RICH N2 Flow during holidays
>
> Hi Jen,
>
> We are planning to use 4 Nitrogen dewars in parallel (instead of 2) in
> the EEL for the RICH during the holiday shutdown. The target group has
> agreed to remove all their tanks during the shutdown so that we will be
> the only gas source in the 125/highbay area. Attached is my ODH form,
> the O2% if all four regulators fail and instantly boil off would be 19.01.
>
> This will require your approval before we set it up. Please let me know
> when it is approved.
>
> Thanks,
>

-- 
Marc McMullen
Detector Support Group
757-269-7738