[Primexd] [Revised Logentry] CCAL occupancy plots

Ilya Larin ilarin at jlab.org
Wed Feb 27 22:54:27 EST 2019


  One of the possible options is exactly what we had in Primex-1 in 2004

with the missing HyCal square: Low energy hits occupancy looks uniform,

while high energy ones show missing column, as it would be no info going

to the trigger sum. But my assumption can be wrong: still investigating.


 Ilya


________________________________
От: Primexd <primexd-bounces at jlab.org> от имени gasparan at jlab.org <gasparan at jlab.org>
Отправлено: 27 февраля 2019 г. 21:58
Кому: Alexander Somov
Копия: primexd at jlab.org
Тема: Re: [Primexd] [Revised Logentry] CCAL occupancy plots


  Looks not bad!, so what was wrong in Drew's plots?

 Ashot


>
> Logentry Text:
> --
> Just to follow up our discussions about Compton reconstruction and
> performance of the CCAL
>
> Below are some occupancy plots for triggered events (trigger bit 1)
>
> Fig. 1 Run 61321 (first Compton production run) 02/26, 1 am
> Fig. 2 Run 61331 (middle of production) 02/27, 1 am
> Fig. 3 Run 61340 (run recently taken) 02/27, 20 pm
>
> CCAL Occupancy from DigiHits       (top left)
> Energy weighted occupancy from DigiHit   (top right)
>
> The same for Hit factory        (middle plots)
> (calibration applied)
>
> FADC time in the readout window for all CCAL channels  (bottom plot)
>
> The occupancies are relatively uniform (except for a few cells, minor
> effect)
>
>
>
>
>
>
> ---
>
> This is a plain text email for clients that cannot display HTML.  The full
> logentry can be found online at
> https://logbooks.jlab.org/entry/3660887_______________________________________________
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