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Re: apd board



Dear Peter.

The performance of the board is as expected.

I have the APD-arrays for two more boards.

After you sent the scint/frames to PSI I will assemble the detectors and 
test them.

Let me know the results of your tests with the existing board.
The operating voltage for the array is +(121-123)V.

Regards,
Alexey


Peter Kammel wrote:
> Dear Alexei,
> 
> Yesterday, Urs sent me pictures of the assembled
> apd board and told me, that you tested it.
> 
> How was the performance? Where there any
> problems?
> 
> Once I know that is was ok, they will build
> two more boards. Do you still have APDs for those?
> I will ask him to send the existing board to
> UIUC, so that we can mount the scintillator
> and test its resolution. Once we have that,
> I'll send two scint/frames to PSI. Then you can
> assemble two more complete detectors and test 
> them yourself.
> 
> Thanks and best regards
> 
> Peter
>