A Ring Neutron Detector for a Time-of-flight Diffractometer Based on Linear Scintillation Detectors with Silicon Photomultipliers


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Abstract

A ring neutron detector has been developed for a time-of-flight diffractometer based on linear scintillation detectors. Light is transported over an organic glass light guide with a diffuse reflector. This scheme makes it possible to collect more photons than are collected in detectors based on wavelength-shifting fibers and to use avalanche photodiodes (SiPMs) instead of photomultiplier tubes. Testing confirmed that these detectors could be used as an alternative for widely used proportional neutron counters filled with 3He.

About the authors

V. N. Marin

Institute for Nuclear Research

Author for correspondence.
Email: marin@inr.ru
Russian Federation, Moscow, 117312

R. A. Sadykov

Institute for Nuclear Research; Institute for High Pressure Physics

Email: marin@inr.ru
Russian Federation, Moscow, 117312; Troitsk, Moscow, 108840

D. N. Trunov

Institute for Nuclear Research

Email: marin@inr.ru
Russian Federation, Moscow, 117312

V. S. Litvin

Institute for Nuclear Research; Lebedev Physical Institute; Moscow Institute of Physics and Technology (State University)

Email: marin@inr.ru
Russian Federation, Moscow, 117312; Moscow, 119991; Dolgoprudnyi, Moscow oblast, 141700

S. N. Axenov

Institute for Nuclear Research

Email: marin@inr.ru
Russian Federation, Moscow, 117312

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