The Effect of the Choice or Response Matrix on Unfolded Bonner Sphere Spectra.
Abstract
The effect of the choice of response matrix on neutron spectra unfolded from Bonner sphere data was studied. In particular, the variation of integral parameters calculated from the unfolded spectra was determined for six matrices. It was determined that, depending on the choice of matrix, the calculated neutron fluence varies by approximately + or - 15%, the average neutron energy by + or - 40%, the dose by + or - 30%, the dose equivalent by up to a factor of 4, and the quality factor by + or - 35%. For personnel monitoring devices, the calculated response varied by up to a factor of 4 for the Navy albedo badge, a factor of 7 for a cadmium-covered albedo badge, a factor of 6 for a CR-39 dosimeter, and more than two orders of magnitude for NTA type emulsion film. Two of the response matrices gave results in good agreement with other calculated and experimental data. Keywords include: Neutrons; Spectrometry; Bonner spheres; Multispheres; and Unfolding.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1984
- Accession Number
- ADA150462
Entities
People
- K. A. Lowry
- T. L. Johnson
Organizations
- United States Naval Research Laboratory