Reduced efficiency variation in perforated neutron detectors with sinusoidal trench design
✍ Scribed by C.J. Solomon; J.K. Shultis; D.S. McGregor
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 672 KB
- Volume
- 618
- Category
- Article
- ISSN
- 0168-9002
No coin nor oath required. For personal study only.
✦ Synopsis
The design of an idealized perforated (microstructured) planar diode neutron detector is presented that has little variation in efficiency as a function of the incident neutron's direction. The reduced angular variation is obtained by using sinusoidal-trench perforations rather than previous hole or straighttrench perforations. The resulting efficiency variation from changing the azimuthal angle of neutron incidence exhibits a variation of only 3% about the mean azimuthal efficiency. The efficiency variation resulting from changes in the polar angle of neutron incidence is limited to 10% of the normal-incidence efficiency over the polar range of 0-601. 10 B, 6 LiF, and 6 Li-metal filled perforations are considered.