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arXiv · 1908.08869

Studies of helium poisoning of a Hamamatsu R5900-00-M16 photomultiplier

Rustem Ospanov·Michael Kordosky·Karol Lang·Jing Liu·Thomas Osiecki·Marek Proga·Patricia Vahle
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Abstract

We report results from studies of the helium poisoning of a 16-anode photomultiplier tube R5900-00-M16 manufactured by Hamamatsu Photonics. A tube was immersed in pure helium for a period of about four months and was periodically monitored using a digital oscilloscope. Our results are based on the analysis of waveforms triggered by the dark noise pulses. Collected data yield evidence of after-pulses due to helium contamination of the tube. The probability of after-pulsing increased linearly with the exposure time to helium but the phototube suffered only a small drop in gain, indicating generally strong resilience to helium poisoning.

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Rustem Ospanov, Michael Kordosky, Karol Lang, Jing Liu, Thomas Osiecki, Marek Proga, Patricia Vahle. 2019-08-23. Studies of helium poisoning of a Hamamatsu R5900-00-M16 photomultiplier. https://arxiv.org/abs/1908.08869

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