[Dsg-mvt] gas mixing system

[Franck Sabatie]

Perfect, thanks a lot Marc, if you need help, let us know!
Franck

Le ven. 8 déc. 2017 à 17:40, Marc McMullen <mcmullen at jlab.org> a écrit :

> Hi Franck,
>
>   Starting Monday we will begin functionality test to verify the spare
> works as a normal mfc. Then we will swap it in, to observe the behavior,
> on the system with Argon and with C4H10. We have manpower to do the
> testing, we may suggest some changes to the valve panel, for instance an
> isolation valve on the flow side of the mass flow controllers would help
> with some of the troubleshooting. Hall B has assigned Todd Ewing as the
> MVT system technician.
>
> For the current run you have two bottles of premix on hand, and 10 more
> on the way, this will give us time to get the mixing system tested and
> running.
>
> Thanks,
>
> Marc
>
>
> On 12/8/2017 11:05 AM, Franck Sabatie wrote:
> > Marc,
> >
> > just for clarification, I heard you mention you were busy on the RICH
> > detector today. I'm not sure when Brian will return from forced
> > vacation... I have a few practical questions to try and get to a
> > running condition with our mixing system:
> >
> > - When and how much time do you think you could dedicate to solving
> > the problem?
> >
> > - Do we need extra manpower on this and with which qualification?
> > (names would help)
> >
> > - Who is actually responsible for making this thing work properly? Is
> > it DSG? Hall B? I'm still confused at this all works.
> >
> > Neither Maxime nor myself are experts on gas system and we are of
> > little (technical) help even though we will of course assist as much
> > as we can. One thing that I can do however is making sure this is
> > taken seriously by management and that ressources are affected to this
> > issue. But I need a bit of help on how to proceed most efficiently :)
> >
> > Thanks again Marc !!!
> > Franck
>
> --
> Marc McMullen
> Detector Support Group
> 757-269-7738
>
>
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