[Halld-cal] BCALReadout - very preliminary - GlueX-note on the portal

[Fernando J. Barbosa]

Hello everyone,

The file I sent previously could not be delivered because of its size 
(due to pictures). I have placed a pdf file on the portal as a GlueX note.

Best regards,
Fernando





Fernando J. Barbosa wrote:
> Hi everyone,
>
> I have attached a pdf that has some very preliminary results for the 
> BCAL readout with the Hamamatsu SiPM. These are the new SiPMs from 
> Hamamatsu for GlueX (notice the new ceramic package). These SiPMs have 
> 16 cells (4x4 array) and each of the 4 die has 4 cells (2x2). The 
> close-up picture gives you an idea of the pixel structure.
>
> The results, although very preliminary, are very encouraging as you 
> can see from the scope pictures.
>
> Carl, you can use these pictures for your presentation at IEEE NSS 
> (please let me know if you need the originals).
>
> Best regards,
> Fernando
>
>
>>
>>
>> Elton Smith wrote:
>>> Dear Glenn,
>>>
>>> During the meeting this afternoon, I promised to send a link to the 
>>> test
>>> plan for the SiPMs. It can be found at
>>> http://www.jlab.org/Hall-D/software/wiki/index.php/Detailed_plan_for_testing_production_SiPM_units 
>>>
>>> If you have comments or suggestions, we will be glad to include 
>>> them. This
>>> week Fernando is qualifying the preamp boards (first phase of plan).
>>> The sensors with preamps will then go to Carl for evaluation.
>>>
>>> Cheers, Elton.
>>>
>>> Elton Smith
>>> Jefferson Lab MS 12H5
>>> 12000 Jefferson Ave
>>> Suite # 16
>>> Newport News, VA 23606
>>> elton at jlab.org
>>> (757) 269-7625
>>> (757) 269-6331 fax
>>>   
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