[Dsg-ltcc] LTCC gas system

[David Anderson]

Ok thanks Brian, leak checking will continue this morning.
George and I were discussing Friday about isolating the gas circuit from the chambers.
By connecting the supply and return together at the chamber I can quickly tell if the leak is in the gas circuit of the chamber itself.
That may save a lot of time....I'll need a 12' section of 1" tubing that terminates with a male fitting on each end.
Any help rounding that up would be helpful.

Thanks,
David 

----- Original Message -----
From: "Brian Eng" <beng at jlab.org>
To: dsg-ltcc at jlab.org
Cc: dla at jlab.org
Sent: Friday, December 2, 2016 4:59:33 PM
Subject: Re: [Dsg-ltcc] LTCC gas system

So I finally saw the S4 flow turn on for the first time; also S1 has turned on as well so it is still leaking, albeit much improved. I still haven't seen S5 turn on yet.

So currently the LTCC leak rates look like the following (from worst [biggest leak] to best):

S2 > S6 > S3 > S1 > S4 > S5

--
Brian Eng
Detector Support Group
757-269-6018

> On Dec 2, 2016, at 2:51 PM, Brian Eng <beng at jlab.org> wrote:
> 
> Hi David,
> 
> All the flows were reduced to 0.5 LPM except for S2 & S6 (5 LPM & 3 LPM respectively). Those were set to ~1 LPM higher than when the flow as on 100% of the time, so figure the leak rate is somewhere between those numbers.
> 
> The leak on S1 is much improved if not completely fixed as I haven't seen the flow kick on recently.
> 
> S3 still has a leak as I see the flow (at 0.5 LPM) turn on periodically.