[Halld-pid] sipm order for FIU

[Alexander Somov]

Hi,

Mark, below is some requested info (I will attend next
SC meeting):

I've ordered  4 25 um (S10362-33-025C) and
2 50 um (S10362-33-050C)  3x3 mm^2 SiPMs about 
1.5 month ago. These SiPMs are in a ceramic package.
We are planning to test them at JLab first and
can send them to FIU later on if needed.

Fernando is going to assemble several preamps for 3x3
SiPMs (he already has parts for the preamps as far as
I know). You can plug SiPM pins into the preamp directly;
the preamps PSB is about 1x1 cm^2 (wide).
Note, the ceramic pachage is larger than the active area
of the SiPM (you can find some plots on a Hamamatsu web page).
If you want to stack several SiPMs, you will need an SMD
(surface mount device) SiPMs - they are cheaper but conncetion
to the preamp is more tricky (I guess that a special PCB
with several preamps will be needed).

Cheers,
        Sascha

P.S. We are going to present some timing measurements of 
3x3 SiPM and array shortly.



On Thu, 28 Apr 2011, Mark M. Ito wrote:

> Sascha,
>
> I came by your office just now but missed you.
>
> Could I ask a favor? Could you write a message to halld-pid at jlab.org 
> reporting on what SiPM's we have ordered for FIU (type, quantity, etc.)? 
> Another question is the amplifier: does it come mounted or do we have to do 
> something to get an amplifier attached?
>
> These questions came up at the last start counter meeting. Please feel free 
> to come by and discuss the topic.
>
>  -- Mark
>