[Solid_ec] Scintillator pad detector for SBS GEP

[Jin Huang]

I asked Adam regarding the electronics after the meeting. It is still in
design and he said only Bogdan know the detail ...

Jin


__________________________________________

Jin HUANG

Los Alamos National Laboratory
PO Box 1663, MS H846, Los Alamos, NM 87545

Office:(505) 665-2523, Cell:(757) 604-9946
__________________________________________



-----Original Message-----
From: Zhiwen Zhao [mailto:zwzhao at jlab.org] 
Sent: Monday, April 15, 2013 11:22 AM
To: jinhuang at jlab.org
Cc: solid_ec at jlab.org; 'Wouter Deconinck'; 'Averett, Todd D'
Subject: Re: [Solid_ec] Scintillator pad detector for SBS GEP

Hi, Jin and others

This is for Gep5 SBS electron arm.
The calorimeter is in the arm is the one we are talking about to
collaborate.
I have asked Bogdan before about the coordinate detector, but didn't know
they have MaPMT for readout and the test.

On their slide 34, they showed gain and width of averaging over 16 pixels.
Sothey should have results for every pixel to look at.
I didn't see they mention anything about front end electronics for the MaPMT
testing, It would be be nice if we can use these and  we need to talk to
them.

thanks

Zhiwen

On 4/12/2013 7:37 PM, Jin Huang wrote:
> Dear All,
>
> There is a design and test effort on going in Hall A, to build a 
> detector very similar to our photon rejecting scintillator pad. It 
> consists of scintillator pad, WLS fiber, and maPMT for readout:
>
> Experiment: Hall A GEP in the SBS program
>
> Spectrometer: BigCal
>
> Purpose: provide electron trigger
>
> Sensitive layer: Scintillator pads with WLS fiber imbedded for readout
>
> PMT: 16 channel maPMT retired from CDF.
>
> Electronics: (still in design) threshold detection with output for 
> trigger and TDCs. Each maPMT channel processed
>
> Talk:
> https://sites.google.com/site/ghpworkshop/home/parallel-program#Parall
> el-Session-3a
> by Adam Sarty
>
> Who to ask for more detail : Bogdan
>
> What for SoLID:
>
> * We may copy this design for photon-rejecting scintillator pad for 
> the SIDIS experiment
>
> * There are few hundred 16 channel maPMT left in the pool, which we 
> may borrow or use!
>
> * Proto-type test result that we may cite
>
> * The amplitude/ADC info is not used and not implemented in their 
> electronics, but necessary if we use it for preshower
>
> Cheers,
>
> Jin
>
> __________________________________________
>
> Jin HUANG
>
> Los Alamos National Laboratory
>
> PO Box 1663, MS H846, Los Alamos, NM 87545
>
> Office:(505) 665-2523, Cell:(757) 604-9946
>
> __________________________________________
>
>
>
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