[Solid_ec] MaPMT Pre-Amp

[Zhihong Ye]

The JLab detector group has two designs of the MaPMT pre-amps. I had a 
look at Wenze Xi's design, which combines the 64 channels into 8(x) x 
8(y) array outputs. These 16 output channels are amplified and read out 
by a 16-pin ribbin cable, and a sum-signal of all these channels is also 
available for other purpose, like triggering. Wenze told me that in 
2006, to build such a pre-amps cost him $500. It might be cheaper now.

The detector group is willing to help us to design the pre-amp based on 
what we need, like working in the low-gain. Drew Weisenberger said we 
can schedule a meeting with their experts to discuss about the pre-amp. 
They also have many experiences on H8500 and other MaPMTs.

I was told Xiaochao will contact with the detector group so I am just 
passing this info to Xiaochao.

-- 
Best Regards
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Zhihong Ye
Physics Department, Duke University
Office:  CEBAF Center F320, Jefferson Lab
Phone:   757-269-6122
Address: 12000 Jefferson Ave, 12H/F320, Newport News, VA 23606