[Solid_daq] [Solid_ec] SoLID EC/DAQ meeting 9:00am Thursday 12/15/2016 CC F227

[Xiaochao Zheng]

Hi Ye:

Here is a quick summary of the to-do list for the next couple of days:

1) Do a HV scan on all 3 shashlyks, lower the HV 50V at a time, make FADC, integrated FADC, and the 2D (PReshower vs. Shashlyk) plots for each run;

2) Do a HV scan on all 3 preshowers, increase the HV 50V at a time, make 1D plot for Preshower's integrated FADC for each run. Ideally we should be able to see the single P.E. peak for each. Once the single P.E. peak is clearly separated from the pedestal, that's where we should set the HV from now on.


When you do the integrated FADC spectrum, please:
3) reject events that have 1 or more saturation or underflow points (I believe they are 4096 and 8192, respectively?)

Analysis-wise, (which you can do after the HV scan), please:

4) go over cosmic runs and make a summary table for THU, SDU1, SDU2 rates. Include details of the cosmic run day/time, and threshold settings. If the HV setting was different, include them as well.  This way, other people can clearly see what you are talking about when you say "THU rate is high".

5) For cosmic runs, pick a few potentially problematic runs (high rates, etc), and make FADC, integrated FADC plots for each preshower and each shashlyk module.  This way we can better understand what the high rates are.

Please send around the spectra whenever you have them. Make sure you include the details (run#, date/time of the run, HV and threshold settings, etc), on EVERY slide.

Thanks,

XIaochao

----- Original Message -----
From: "Ye Tian" <tianye.sdu at gmail.com>
To: "Yi Wang" <yiwang at mail.tsinghua.edu.cn>
Cc: "Xiaochao Zheng" <xiaochao at jlab.org>, "solid ec" <solid_ec at jlab.org>, "Solid daq" <solid_daq at jlab.org>
Sent: Thursday, December 15, 2016 9:02:33 AM
Subject: Re: [Solid_ec] SoLID EC/DAQ meeting 9:00am Thursday 12/15/2016 CC F227

On Wed, Dec 14, 2016 at 10:40 PM, yiwang <yiwang at mail.tsinghua.edu.cn>
wrote:

> I am on trip today but I will try to participate the merting. This is a
> good opportunity to check the prototype performance. we should catch this
> beam time.
> best regards.
>
> Wang Yi
>
>
> 发自网易邮箱大师
>
>
> On 2016-12-15 11:11 , Xiaochao Zheng <xiaochao at jlab.org> Wrote:
>
> Dear All:
>
> We will have our SoLID EC/DAQ meeting at 9:00am US EST on Thursday
> 12/8/2016. The location at JLab is CC F227.
>
> The call-in instruction is shown below. Meeting minutes can be found at
>  http://hallaweb.jlab.org/experiment/PVDIS/SoLID/EC/
> meetings/SoLID_EC_Weekly_minutes.html
>
> If you have slides to present, please email them to everyone by replying
> to this email (or to me but only if there is a problem with the Reply-All)
> before the meeting.
>
> Thanks,
>
> Xiaochao
>
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