Difference between revisions of "PMT & Divider"
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* New modifications: (1) modify resistors to limit divider current below 1 mA (2) Increase voltages on first dynodes | * New modifications: (1) modify resistors to limit divider current below 1 mA (2) Increase voltages on first dynodes | ||
| − | :: - [https://halldweb.jlab.org/detectors/fcal2/dividers/vlad_modify/New_DIV.pdf Resistor values] | + | :: - [https://halldweb.jlab.org/detectors/fcal2/dividers/vlad_modify/New_DIV.pdf Resistor values] |
| + | [https://halldweb.jlab.org/detectors/fcal2/dividers/design_meeting_2_16_2021/divider_resistors.xlsx ] | ||
:: - [https://halldweb.jlab.org/detectors/fcal2/dividers/vlad_modify/Test_Vlads_new_resistor_values.pdf Corresponding voltages] | :: - [https://halldweb.jlab.org/detectors/fcal2/dividers/vlad_modify/Test_Vlads_new_resistor_values.pdf Corresponding voltages] | ||
:: - [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] | ||
Revision as of 12:55, 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
- - Corresponding voltages
- - New bases installed in the Hall Divider current after installation [2]
Documents
