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Nuclear hyperfine mixing in 229Th89+ 2025, Page 1 of 1  Not logged in

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ID Date Author Category Subject   4   Wed Jun 4 16:18:57 2025 Rodolfo, Simon Detectors PMT dark count rates I adjusted the offsets of the amplifiers in the cave and measured the dark count rates : PMT Model Operation Voltage Count rate (Hz) South ET9422B Broadband -1500 V 1300 Middle ET9423B Smallband -2650 V 20 North ET9423B Smallband -2650 V 30 Also the MCP anode of the XUV detector is now connected to the amplifiers and fed to the data cable of "PMT Cu". Quote: This is the arrangement of the photomultipiers at the optical detection region at ESR for Thorium 2025 PMT Model SN Operation Voltage Threshold South ET9422B 1042 Broadband -1500 V Middle ET9423B 653 Smallband -2650 V 10 (preliminary) North ET9423B 652 Smallband -2650 V 12 (preliminary)   1   Tue May 20 16:14:30 2025 Rodolfo, Simon Detectors PMT arrangement at ESR This is the arrangement of the photomultipiers at the optical detection region at ESR for Thorium 2025 PMT Model SN Operation Voltage Threshold South ET9422B 1042 Broadband -1500 V Middle ET9423B 653 Smallband -2650 V 10 (preliminary) North ET9423B 652 Smallband -2650 V 12 (preliminary) Attachment 1: PMT_Arrangement_2025-05-20.jpg   3   Wed Jun 4 16:17:47 2025 Simon Detectors Nitrogen The nitrogen supply for the PMTs is turned ON.   2   Mon Jun 2 16:36:57 2025 Carsten Detectors Mesycontrol ssh -Y litv-exp@x86l-204 'mesycontrol' Attachment 1: MSCF16-F-V.pdf

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