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- Title
THE DESIGN OF A PORTABLE COSMIC RAY THREE-BAND NEUTRON DETECTOR.
- Authors
Monk, S. D.; Joyce, M. J.
- Abstract
The design of a portable three-band cosmic-ray neutron detector is reported in this article. This instrument has been designed to characterise cosmic ray neutron fields in the upper atmosphere and in cosmic reference field facilities. The design utilises a spherical moderator with a layer of spallation material covering a central 3He proportional counter. The instrument incorporates twelve lithium-coated diodes, six on the outside of the polyethylene layer and six placed within the structure. The dimensions, materials and arrangement of these in the instrument have been optimised with MCNPX to provide a compromise between the requirements of portability and spectral response.
- Subjects
COSMIC ray neutrons; NEUTRON counters; RADIOACTIVITY instruments; NUCLEAR counters; COSMIC rays; UPPER atmosphere; NEUTRONS; ASTROPHYSICAL radiation; RADIATION
- Publication
Radiation Protection Dosimetry, 2007, Vol 123, Issue 1, p3
- ISSN
0144-8420
- Publication type
Article
- DOI
10.1093/rpd/ncl074