Photonis XP5312/XS 3" (76 mm) Photomultiplier tube with Voltage divider and 1.5 meter cable with BNC connector, carefully pulled from working environment and professianally tested using LaBr3(Ce) scintillation crystal and Cs137 radioactive source. Test performed using GS-MAX 8000 spectrometer hardware at 670 V tube voltage.

Want to build a gamma spectrometer? This is your chance! 

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