[Primexd] [Revised Logentry] CCAL occupancy plots

[Justin Stevens]

Hi Liping,

So what are the prospects of getting this generator into the Hall D simulation framework?  Does the source code exist somewhere for the generator that you could send a link to?

-Justin

> On Feb 28, 2019, at 2:42 PM, Gan, Liping <ganl at uncw.edu> wrote:
> 
> Hi, Justin,
>  
> I used my own code  in last summer to have a quick look at acceptance and rates. No material and smearing are included.  
>  
> I agree that a full simulation including all material would be a good idea.
>  
> Liping
>  
>  
>  
>  
> From: Justin Stevens <jrsteven at jlab.org> 
> Sent: Thursday, February 28, 2019 11:11 AM
> To: Gan, Liping <ganl at uncw.edu>
> Cc: Ilya Larin <ilarin at jlab.org>; gasparan at jlab.org; Alexander Somov <somov at jlab.org>; primexd at jlab.org
> Subject: Re: [Primexd] [Revised Logentry] CCAL occupancy plots
>  
> Hi Liping,
>  
> Thanks for the plots.  Just to be clear, are these simulated distributions with the CompCal in it’s current (as-built) position and all upstream material included?
>  
> Also, do we have this compton event generator in the Hall D simulation framework where we can simulate these events compton events and run them through our full simulation: hdgeant(4), mcsmear, reconstruction, etc.?  It would be really useful to have some MC samples to compare with the compton data samples being collected now.
>  
> -Justin
> 
> 
> On Feb 27, 2019, at 11:27 PM, Gan, Liping <ganl at uncw.edu <mailto:ganl at uncw.edu>> wrote:
>  
> Hi, all,
>  
> Attached file is simulated Compton event distributions on CCAL. 
>  
> Liping
>  
> 
> From: Primexd <primexd-bounces at jlab.org <mailto:primexd-bounces at jlab.org>> on behalf of Ilya Larin <ilarin at jlab.org <mailto:ilarin at jlab.org>>
> Sent: Wednesday, February 27, 2019 10:54 PM
> To: gasparan at jlab.org <mailto:gasparan at jlab.org>; Alexander Somov
> Cc: primexd at jlab.org <mailto:primexd at jlab.org>
> Subject: Re: [Primexd] [Revised Logentry] CCAL occupancy plots
>  
>  
>   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 <mailto:primexd-bounces at jlab.org>> от имени gasparan at jlab.org <mailto:gasparan at jlab.org> <gasparan at jlab.org <mailto:gasparan at jlab.org>>
> Отправлено: 27 февраля 2019 г. 21:58
> Кому: Alexander Somov
> Копия: primexd at jlab.org <mailto: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)
> >
> >
> >
> >
> >
> >
> > ---
> >
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