[Dsg-rich] Fwd: rich hv

[Tyler Lemon]

Hello Marco, 

I asked Morgan whether there is a lift available to check the RICH HV. His response is below. It looks like the lower half of the RICH HV has been disconnected again to remove LTCC sector 5. 

Mindy is also not trained to operate the lift. I have contacted the aerial lift training coordinators to try to schedule a training session. If the lesson is able to happen tomorrow, someone from DSG would be able to help on Friday. 

For planning purposes, what would need to be done to check the HV cables? 

Would we only need to check that the cable labels match what is on the patch panel? If this is the case, could this be done at a later date when all HV cables for RICH have been reconnected? 

Please let us know. 

Best regards, 
Tyler 




From: "Morgan Cook" <mcookiv at jlab.org> 
To: "Tyler Lemon" <tlemon at jlab.org> 
Sent: Wednesday, July 11, 2018 12:37:01 PM 
Subject: Re: rich hv 

Hi Tyler, 

There is a scissor lift that might get you close to it. Unfortunately, neither the JLG nor the Genie are able to access the RICH this week. Maybe next week. 

The lower half of the HV was disconnected in order to remove LTCC sector 5. It won't be reconnected until be re-install it. 

Regards, 
Morgan 


From: "Marco Contalbrigo" <mcontalb at fe.infn.it> 
To: "Tyler Lemon" <tlemon at jlab.org> 
Cc: "dsg-rich" <dsg-rich at jlab.org> 
Sent: Wednesday, July 11, 2018 12:01:15 PM 
Subject: Re: [Dsg-rich] Fwd: rich hv 

Hi Tyler, 
would Mindy be available on Friday early morning ? 

On Wed, 11 Jul 2018, Tyler Lemon wrote: 

> Hello Marco, 
> 
> There is the DSG weekly meeting this afternoon from 1:00PM to 3:00PM and I will not be at work 
> from 8:45AM to about 10:15AM on Friday. We could meet this afternoon after the DSG meeting, any 
> time tomorrow, or later Friday morning. 
> 
> I have asked whether the lift is still where we could get to the HV cables in Hall B since 
> Morgan Cook from Hall B Engineering said the lift would be moving early last week (his email to 
> me is below, at the start of this email chain). Morgan also said that the cable labeled A-37 was 
> left tied off to the side. The 'spare' HV cable was plugged into A-37 in its place. 
> 
> Also, I am not trained to operate the lift. We would need someone else, whether from DSG or Hall 
> B, to operate the lift. 
> 
> Best regards, 
> Tyler 
> 
> ________________________________________________________________________________________________ 
> From: "Marco Contalbrigo" <mcontalb at fe.infn.it> 
> To: "Tyler Lemon" <tlemon at jlab.org> 
> Cc: "dsg-rich" <dsg-rich at jlab.org> 
> Sent: Wednesday, July 11, 2018 11:34:50 AM 
> Subject: Re: [Dsg-rich] Fwd: rich hv 
> 
> Dear Tyler, 
> can we plan a visual inspection this week, while I am 
> at Jlab. Due to the tight CLAS meeting schedule, I 
> have limited time windows. At a first glance I would 
> say: this early afternoom (preferred) or Friday early 
> morning. May you check if we can go in with the lift 
> and DSG can drive me there ? 
> Do you know if A-37 is still in place or has been 
> unplugged ? 
> Thanks, Marco. 
> 
> On Fri, 29 Jun 2018, Tyler Lemon wrote: 
> 
> > Hello Marco, Valery, 
> > 
> > Please see Morgan's email below. 
> > 
> > RICH HV was disconnected by Hall B Engineering to be able to remove LTCC sectors from the 
> > forward carriage. Yesterday, HV was reconnected to RICH. 
> > 
> > What checks would need to be run to ensure that HV is connected correctly to RICH? 
> > 
> > Best regards, 
> > Tyler 
> > 
> >_______________________________________________________________________________________________ 
> _ 
> > From: "Morgan Cook" <mcookiv at jlab.org> 
> > To: "Tyler Lemon" <tlemon at jlab.org> 
> > Cc: dsg-internal at jlab.org 
> > Sent: Thursday, June 28, 2018 9:20:44 AM 
> > Subject: rich hv 
> > 
> > Hi Tyler, 
> > 
> > The rich detector hv is plugged back in. I plugged the 'spare' hv cable in to A-37 since the 
> > A-37 cable had been tied off to the side for whatever reason. You may want to run any checks 
> on 
> > it sooner rather than later since we'll be moving the lift early next week. 
> > 
> > Regards, 
> > Morgan 
> > 
> > 
> 
> 
> 

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