A double-helix neutron detector using micron-size B-10 powder

Zhehui Wang; C. L. Morris; J. D. Bacon; M. I. Brockwell; J. C. Ramsey

doi:10.1016/j.nima.2014.07.056

A double-helix neutron detector using micron-size B-10 powder

Instrumentation and Detectors 2023-08-22 v1

Authors: Zhehui Wang , C. L. Morris , J. D. Bacon , M. I. Brockwell , J. C. Ramsey

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Abstract

A double-helix electrode configuration is combined with a $^{10}$ B powder coating technique to build large-area (9 in $\times$ 36 in) neutron detectors. The neutron detection efficiency for each of the four prototypes is comparable to a single 2-bar $^3$ He drift tube of the same length (36 in). One unit has been operational continuously for 18 months and the change of efficiency is less than 1%. An analytic model for pulse heigh spectra is described and the predicted mean film thickness agrees with the experiment to within 30%. Further detector optimization is possible through film texture, power size, moderator box and gas. The estimated production cost per unit is less than 3k US$ and the technology is thus suitable for deployment in large numbers.

Keywords

neutron detection particle detector reactor neutrino physics

Cite

@article{arxiv.1406.5048,
  title  = {A double-helix neutron detector using micron-size B-10 powder},
  author = {Zhehui Wang and C. L. Morris and J. D. Bacon and M. I. Brockwell and J. C. Ramsey},
  journal= {arXiv preprint arXiv:1406.5048},
  year   = {2023}
}

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