| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8175843 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2014 | 7 Pages |
Abstract
A double-helix electrode configuration is combined with a 10B powder coating technique to build large-area (9Â in.Ã36 in., or about 23Â cm by 91Â cm) neutron detectors. The neutron detection efficiency for each of the four prototypes is comparable to 3.7Ã103Â cm3 of 3He inside a cylindrical tube 91Â cm long. One unit has been operational continuously for 18 months and the change of efficiency is less than 1%. An analytic model for pulse height spectra is described and the predicted mean film thicknesses agree with the experiment to within 30%. Further detector optimization is possible through film texture, powder 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
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Zhehui Wang, C.L. Morris, J.D. Bacon, M.I. Brockwell, J.C. Ramsey,