[Hps-ecal] hv currents

[Nathan Baltzell]

FYI,

Something happened today, resulting in many HV trips:
https://logbooks.jlab.org/entry/3309588

-Nathan



On Nov 29, 2014, at 9:44 PM, Nathan Baltzell <baltzell at jlab.org> wrote:

> Hi Gabriel,
> 
> Sorry it wan't clear.  What Stepan said is correct:  /home/hpsrun only
> exists on the clon machines in the counting room behind the hall
> gateway.  To get access, you have to either physically go to the
> counting room, or ssh in with a secondary password.
> 
> Meanwhile, I copied those same files here, accessible via ifarms:
> /home/hps/.ecalhv
> 
> Also, sometime today a large number of HV channels tripped.
> When I last checked this morning everything looked ok.  Did
> anyone else notice anything strange?  Temps still look normal.
> 
> LB13
> LB18
> LB19
> LB21
> LB22
> RT13
> RT14
> LT2
> 
> -Nathan
> 
> 
> 
> 
> On Nov 27, 2014, at 12:25 PM, Stepan Stepanyan <stepanya at jlab.org> wrote:
> 
>> Gabriel,
>> 
>> I believe /home/hpsrun is on our clon machines in counting room.
>> 
>> Stepan
>> On 11/27/14, 12:14 PM, Gabriel CHARLES wrote:
>>> Hi Nathan,
>>> 
>>>   I've tried to access the hv files but:
>>> ifarm1101> cd /home/hpsrun/
>>> /home/hpsrun/: Permission denied.
>>> And:
>>> ifarm1101> ls /home/hpsrun/.ecalhv
>>> ls: cannot access /home/hpsrun/.ecalhv: Permission denied
>>> 
>>> Is it because I'm not using the JLab network? When you will have time
>>> could change the permission access please or copy it somewhere I can
>>> access to?
>>> 
>>> Regards,
>>> Gabriel
>>> 
>>> Le 2014-11-26 20:33, Nathan Baltzell a écrit :
>>>> 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
>>>> 
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