[Hps-ecal] hv currents

[Nathan Baltzell]

Hi Everyone,

The one remaining HV group that was not at nominal voltage had its current
limit raised a week ago (to 65 uA, the largest of all channels), and we've had
no trips since then and all channels holding at nominal voltages.  Here's a pic
of the channels currently with high draw.

Also, in ~hpsrun/.ecalhv is a set of text files with current readbacks (filenames
contain timestamp).  These are set to go to a database automatically before
long, but meanwhile I have a cronjob recording them hourly in those text files
for at least the past week (there were some blips due to ioc/network changes
early last week).  Intent is to see the time-dependence, just need to write a
script to read and plot them ...

-Nathan







Begin forwarded message:

> From: Gabriel CHARLES <charlesg at ipno.in2p3.fr>
> Subject: Re: [Hps] Run schedule for next week
> Date: November 26, 2014 4:10:16 PM EST
> To: Nathan Baltzell <baltzell at jlab.org>
> 
> If I am right there is one HV group that do not work at nominal value, should we take care of it during the HPS target assembly?
> 
> Le 2014-11-26 15:57, Nathan Baltzell a écrit :
>> Dear Everyone,
>> Next week the accelerator will work to resume multi-hall operation, and
>> it is possible Hall-B will have beam as early as Thursday evening.
>> So, shifts in the Hall-B counting room are set to resume on Thursday,
>> December 4 with the swing shifts.
>> The previously planned down time Dec. 5-12 has been cancelled and will
>> now need to have shifts manned.
>> The plan is for the HPS target assembly to have been installed and tested
>> by Wednesday, and the full beamline returned to vacuum and the hall closed
>> on Thursday.  Then take beam to the tagger dump and repeat and finish
>> quality studies, and then do the same with beam to the Faraday cup.
>> Regards,
>> Nathan
>> _______________________________________________
>> Hps mailing list
>> Hps at jlab.org
>> https://mailman.jlab.org/mailman/listinfo/hps
> 
> -- 
> Gabriel CHARLES
> Institut de Physique Nucléaire d'Orsay

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/hps-ecal/attachments/20141126/da17fc2e/attachment.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screen Shot 2014-11-26 at 8.24.15 PM.png
Type: image/png
Size: 8390 bytes
Desc: not available
Url : https://mailman.jlab.org/pipermail/hps-ecal/attachments/20141126/da17fc2e/attachment.png