[Hps-controls] HPS controls meeting on Tuesday, April 21, 2015

[Stepan JLAB]

Hi Wesley,

Yes, you can, as long as we do not have beam.

Stepan

Sent from my iPhone

> On Apr 21, 2015, at 11:17 AM, Wesley Moore <wmoore at jlab.org> wrote:
> 
> Looking into the harp scanning.. can I run the harp_2H02A scan to see if I can sort out file issues?
> 
> Wesley
> 
> ----- Original Message -----
>> From: "Stepan Stepanyan" <stepanya at jlab.org>
>> To: hps-controls at jlab.org
>> Sent: Tuesday, April 21, 2015 10:26:51 AM
>> Subject: Re: [Hps-controls] HPS controls meeting on Tuesday, April 21, 2015
> 
>> Hovanes,
>> 
>> I spent all night in the counting room and not sure will make to your
>> meeting,
>> but I have two very serious issues that want to be discussed, urgently.
>> This is
>> 2H02A harp and harp fitter.
>> 2H02 fails to write the file quite often. We thought it is related to
>> IOC and were
>> trying to restore writing of the file with IOC reboots. But last night
>> after several
>> runs and reboots, I realized that it is almost random. Reboot or not, it
>> may write
>> the file after several scans. Considering that scan takes 10 minutes,
>> this is a lot
>> of beam time lost.
>> The second issue is with fitting of the scan results. The fitters fails
>> very often,
>> especially when background on the halo counters is high.
>> 
>> Considering that we will be on-and-off very often and will set the beam
>> every
>> night running many-many harp sscans (including 2H02), and will have high
>> backgrounds in our halo counters, these both issues are very serious.
>> They need
>> to resolved.
>> 
>> Thanks,. Stepan
>> 
>>> On 4/21/15 9:10 AM, Hovanes Egiyan wrote:
>>> Hi all,
>>> 
>>> let's have a HPS slow controls meeting of 2015 on Tuesday, April 21
>>> (today) at
>>> 2pm US eastern time. Wesley will chair it.
>>> 
>>> You can find the preliminary meeting agenda at:
>>> 
>>> https://confluence.slac.stanford.edu/display/hpsg/2015.04.21+Biweekly
>>> 
>>> Please, feel free to add more items to the agenda. JLab locals can meet
>>> in B101.
>>> We will use BlueJeans for teleconferencing. Instructions for joining the
>>> BlueJeans meeting
>>> can be found at:
>>> https://confluence.slac.stanford.edu/display/hpsg/Instructions+for+joining+controls+meeting
>>> 
>>> 
>>>        Hovanes.
>>> 
>>> _______________________________________________
>>> Hps-controls mailing list
>>> Hps-controls at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/hps-controls
>> 
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