[dsg-hallb_gas] ALERT gas controls

[Marc Mcmullen]

Hi Bob,

I will set up a meeting for later this week.

Marc
________________________________
From: Bob Miller <rmiller at jlab.org>
Sent: Monday, July 22, 2024 12:15 PM
To: Marc Mcmullen <mcmullen at jlab.org>
Cc: Brian Eng <beng at jlab.org>
Subject: Re: ALERT gas controls

Hi Marc,

The ALERT group is ready to move forward with the detector gas pressure control system that uses the Alicat MFCs.  They would like to use this system in September, so it would be nice to install and test it in August.

When can we meet to discuss the gas control system and the target straw testing?

Thanks,

Bob Miller
Hall B Lead Engineer
(757) 822-9586

________________________________
From: Marc Mcmullen <mcmullen at jlab.org>
Sent: Thursday, April 4, 2024 11:49 AM
To: Bob Miller <rmiller at jlab.org>; Marc Mcmullen via dsg-hallb_gas <dsg-hallb_gas at jlab.org>
Subject: Re: ALERT gas controls

Ok Bob,

I’m going to connect the cRIO to set flow on your Mrs and readout your pressure sensors.

I’ll update you when it is ready for testing.

Marc

Get Outlook for iOS<https://aka.ms/o0ukef>
________________________________
From: Bob Miller <rmiller at jlab.org>
Sent: Thursday, April 4, 2024 11:23:52 AM
To: Marc Mcmullen <mcmullen at jlab.org>; Marc Mcmullen via dsg-hallb_gas <dsg-hallb_gas at jlab.org>
Subject: Re: ALERT gas controls

Hi Marc,

For the testing this month, I would like to use the MFC308 to supply the drift chamber.  The chamber is currently not set up to run at 1050 mbar, so I will just use a bubbler to control the pressure.

As soon as they are done testing, we can change over to the new control system and test it while the detector is bypassed.

Thanks,

Bob Miller
Hall B Lead Engineer
(757) 822-9586
________________________________
From: Marc Mcmullen <mcmullen at jlab.org>
Sent: Thursday, April 4, 2024 7:41 AM
To: Marc Mcmullen via dsg-hallb_gas <dsg-hallb_gas at jlab.org>; Bob Miller <rmiller at jlab.org>
Subject: ALERT gas controls


Hi Bob,



The Alicat MFCs have arrived. Brian has started developing LabVIEW drivers for them. I have started writing the ALERT gas controls software to run in the EEL building.



Did you still just want to run MFC308 as a purge system, or do you want to go with the pressure controls on the exhaust?



Regards,

Marc
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