[PRad] [EXTERNAL] PRad2-DRad Weekly Meeting Sep. 30th at 11:00AM EDT (New Meeting Link!)

Chao Peng pengc2010 at gmail.com
Fri Sep 30 12:00:48 EDT 2022

Dear All,

Below please find the minutes for today's meeting:

*GEM Conceptual Design:*
Eugene will schedule a meeting between Nilanga and Bob next Monday for the
GEM conceptual design
GEM Conceptual design:
A box of helium-4 with two GEMs attached to the front/back surfaces,
GEM with helium as the working gas (it's still a preliminary idea)

*HyCal Electronics:*
HyCal needs about 7 crates of Flash ADCs. We might borrow these from CLAS
but finding other resources is encouraged.
Calibration needs  the revival of Hall B photon tagger (taking out focal
plane detectors, finding old high voltage power supplies)
It is encouraged to avoid the use of the photon tagger:
Rough gain matching with cosmic rays and with adjusting scaling-constant in

*GEM Electronics:*
SRS is not supported by CERN anymore.
Around 200 APV chips left, need to spend 20k-30k to make them into cards.
Might borrow some APV cards from SBS if not enough.

*Review Meeting:*
Prepare to answer the question: can the three experiments be scheduled
Clear setup and plan required for the meeting: number of crystals, number
of readout channels, using photon tagger or not, etc...
Open discussions about these requirements in the next PRad2-DRad Weekly

Weizhi will give a talk at Chinese LQCD and promote the LQCD calculation
regarding EM form factors (and charge/magnetic radii).

Best Regards,

On Thu, Sep 29, 2022 at 11:13 PM Weizhi Xiong <weizhi.xiong at duke.edu> wrote:

> Dear all,
>     We will have our PRad2-DRad weekly meeting this Friday September 30th at
> 11:00AM EDT. Here is the zoom link for the meeting:
>     The zoom link to attend the meeting is the following:
> https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_j_16163386292-3Fpwd-3DM282RW0wSXVqMjYwczl5WlY2SXpzdz09&d=DwIBaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=V3XNY-MaMKN2LuAaTdObrA&m=BbWCCBLtu9BsKPYL-YHdRmt92l8DPlS6zteVDkNcmOkJtqbivAd8lvk0hq_Qa5zH&s=-yLGGaQmsJwm5mYIaHHi0Y8TAWZanZdv00cwXcrTiLY&e=  
>     Meeting ID: 161 6338 6292
>     Passcode: 921642
> Weizhi
> _______________________________________________
> PRad mailing list
> PRad at jlab.org
> https://mailman.jlab.org/mailman/listinfo/prad
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