Difference between revisions of "PMT & Divider"
From GlueXWiki
(→PMT Active Base) |
|||
Line 18: | Line 18: | ||
:::: [https://halldweb.jlab.org/wiki-private/index.php/FCAL_insert_counter_prototype Prototype of the PMT housing (magnetic field shielding)] | :::: [https://halldweb.jlab.org/wiki-private/index.php/FCAL_insert_counter_prototype Prototype of the PMT housing (magnetic field shielding)] | ||
+ | *[https://halldweb.jlab.org/wiki-private/index.php/PMT_testing '''PMT testing for Compton Calorimeter (2018)'''] | ||
− | |||
+ | *[https://halldweb.jlab.org/wiki-private/index.php/PMT_for_FCAL_insert '''Procurement of PMTs '''] | ||
− | |||
Revision as of 23:07, 7 January 2022
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
- - New bases installed in the Hall
- Divider current after installation [1]
- - New bases installed in the Hall
Documents