Solid calorimeter readout
MAPMT assembly from hamamatsu http://www.hamamatsu.com/jp/en/product/category/3100/3002/index.html
A quick summary of files under the dropbox directory "MAPMT/":
new MAPMT from Hamamatsu with batter efficiency (New MA-PMT from Hamamatsu.pdf) CLAS12 RICH H8500C test, including crossstalk result (Hoek_H8500_Characterization.pdf) CLAS12 RICH frontend (130626_RICH_Tech_Rev_FrontEnd.pdf) CLAS12 RICH DAQ (HallB_RICH_DAQ_June2013.pdf) CLAS12 RICH review report (Rich_Tech_Review_report.pdf) SBS coordinate director, similar to SoLID EC SPD (CDet-talk-SBS-MeetingJune2013-Sarty.pptx) W&M report on LHCb MAPMT (MAPMT_gain_match_report.pdf)
Here is a note about LHCb SPD/PS prototype http://lhcb-calo.web.cern.ch/lhcb-calo/internal/TDR/notes/031/bt.ps It has a lot info about fiber embedding and MAPMT test According to this note, it seems MAPMT H7546 is a package name and has R5900 inside.
Here is another short note of LHCb H7456 test. https://www.dropbox.com/sh/365le2o93vpn14e/XTO79_pZFd/readout/MAPMT/study/democrite-00013700.pdf
H7546 spec is here https://www.dropbox.com/sh/365le2o93vpn14e/qNmztVpj9k/readout/MAPMT/Hamamatsu/H7546A_H7546B_TPMH1240E12.pdf I haven't really seen big difference between H7546 and H8500 from spec sheet
CLAS12 RICH has some H7546 test done also https://www.dropbox.com/sh/365le2o93vpn14e/cO2xnFVA-z/readout/MAPMT/study/Montgomery_NPESeminar_150911.pdf