Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8176972 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2014 | 5 Pages |
Abstract
A position-sensitive tubular scintillator-based neutron detector is proposed as an alternative to a 3He-gas-based detector. The detector has a neutron-detecting element constructed from rolled ZnS/6LiF scintillator screens that sandwich wavelength-shifting (WLS) fibre coils (SFC element). Multiple SFC elements are enclosed in an aluminium tube in a row to form a one-dimensional position-sensitive neutron detector. The design of the WLS fibre coil, which was determined by performing basic experiments, comprised two 0.75-mm-diameter WLS fibres wound in parallel at a pitch of 1.5Â mm. A 64-element detector with a pixel size of 22Â mmÃ20Â mm (widthÃlength) successfully demonstrated the detection principle. The tubular shape of the new detector is similar to the usual 25-mm-diameter 3He tube, making this an alternative detector with the potential to be installed in a vacuum tank for inelastic-neutron-scattering instruments.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
T. Nakamura, M. Katagiri, K. Toh, K. Honda, H. Suzuki, M. Ebine, A. Birumachi, K. Sakasai, K. Soyama,