[Dsg-rtpc] Helium for Bonus Experiment

[George Jacobs]

Hi Carlos,

There are currently 5 full cylinders of pre-mix gas in the EEL gas cage. The last order of 4 cylinders arrived last month. These cylinders were for testing the actual detector in the EEL.

I can order more cylinders for delivery to 96B, if that is what you need. There is a 4-6 week lead time for delivery of this pre-mix gas. Does your estimate of 4 cylinders for the run take into acccount any contingency? Additional gas may be required in the case of an accidental loss of gas for some reason such as a leak or an improper gas supply configuration. I would recommend ordering at least 6 cylinders if you estimate the need at 4, with a contingency of at least 2 cylinders just in case. The lead time of 4-6 weeks eliminates the option of ordering more during the run.

Cheers,
George


--
George Jacobs
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606
(office) 757-269-7021
(email) jacobsg at jlab.org


________________________________
From: Carlos Ayerbe Gayoso <gayoso at jlab.org>
Sent: Tuesday, October 15, 2019 11:49 AM
To: Bob Miller <rmiller at jlab.org>; Sebastian Kuhn <kuhn at jlab.org>; Jiwan Poudel <jpoudel at jlab.org>; Stephen Bültmann <sbueltma at odu.edu>; George Jacobs <jacobsg at jlab.org>
Cc: dsg-rtpc at jlab.org <dsg-rtpc at jlab.org>
Subject: Re: Helium for Bonus Experiment

George,

may you give us the status of the He/CO2 order?

Thank you

-Carlos
________________________________
From: Bob Miller <rmiller at jlab.org>
Sent: Tuesday, October 15, 2019 7:37 AM
To: Carlos Ayerbe Gayoso <gayoso at jlab.org>; Sebastian Kuhn <kuhn at jlab.org>; Jiwan Poudel <jpoudel at jlab.org>; Stephen Bültmann <sbueltma at odu.edu>
Cc: dsg-rtpc at jlab.org <dsg-rtpc at jlab.org>
Subject: Re: Helium for Bonus Experiment


Hi Carlos,


Please send an update when the He/CO2 order is confirmed and you have a delivery date.


I will check the He4 inventory in Hall B.


Regards,

Bob


On 10/14/2019 3:11 PM, Carlos Ayerbe Gayoso wrote:
Hi Bob,

in principle, the 4 bottles of He/CO2 were in the list to buy them soon, and I believe they are already ordered because the delivery time was quite long. He4 not quite sure if was intended to buy it exclusively for BONuS or use the present in the hall.

Cheers

-Carlos
________________________________
From: Sebastian Kuhn <kuhn at jlab.org><mailto:kuhn at jlab.org>
Sent: Monday, October 14, 2019 2:12 PM
To: Carlos Ayerbe Gayoso <gayoso at jlab.org><mailto:gayoso at jlab.org>; Jiwan Poudel <jpoudel at jlab.org><mailto:jpoudel at jlab.org>; Stephen Bültmann <sbueltma at odu.edu><mailto:sbueltma at odu.edu>
Subject: Fwd: Helium for Bonus Experiment

Can you reply to Bob (with cc to me).?
Thanks - Sebastian

Begin forwarded message:

From: Bob Miller <rmiller at jlab.org<mailto:rmiller at jlab.org>>
Subject: Helium for Bonus Experiment
Date: October 14, 2019 at 8:11:15 AM EDT
To: Sebastian Kuhn <kuhn at jlab.org<mailto:kuhn at jlab.org>>

Hi Sebastian,

Based on the Bonus flow requirement of 1 gas exchange per hour, the experiment will need 4 bottles of He4/CO2 (K bottles, 2000 psi).  The experiment will also need 1 bottle of He4.

Has this gas been ordered?

Thanks,

--
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 822-9586




--
Bob Miller
Hall B Lead Engineer
Jefferson Lab
757 822-9586


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