Difference between revisions of "PMT & Divider"
From GlueXWiki
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:: - [https://logbooks.jlab.org/entry/3844449 New bases installed in the Hall] Divider current after installation [https://logbooks.jlab.org/entry/3844569] | :: - [https://logbooks.jlab.org/entry/3844449 New bases installed in the Hall] Divider current after installation [https://logbooks.jlab.org/entry/3844569] | ||
− | [https://halldweb.jlab.org/DocDB/0049/004981/004/amp_lin.pdf Linearity test of the modified amplifier (gain 3)] | + | ::[https://halldweb.jlab.org/DocDB/0049/004981/004/amp_lin.pdf Linearity test of the modified amplifier (gain 3)] |
'''Documents''' | '''Documents''' | ||
:: [https://halldweb.jlab.org/detectors/fcal2/pmt/Pub-97-092.pdf PMT lifetime studies at FNAL] | :: [https://halldweb.jlab.org/detectors/fcal2/pmt/Pub-97-092.pdf PMT lifetime studies at FNAL] |
Revision as of 12:48, 4 May 2021
PMTs
- Hamamatsu R4125 PMT:
- Magnetic shielding
- TOSCA calculation (by Sasha Glamazdin)
- presentation
- (ppt file location /u/group/halld/Subsystems/HFCal/talk/Hybrid_FCal_shield.pptx)
- Directory with TOSCA results /u/group/halld/Subsystems/HFCal/.
PMT Active Base
Modified Active Bases (2020)
- Three active bases were modified by V.Popov. They were installed and testes using the CCAL
- (including resistor values for different amplifier gains)
- New modifications: (1) modify resistors to limit divider current below 1 mA (2) Increase voltages on first dynodes
- - Resistor values
- - Corresponding voltages
- - New bases installed in the Hall Divider current after installation [1]
Documents