Spectra and dose fractions of monoenergetic neutrons passed through different shields and their application for dose-meter evaluation
Journal Article
·
· Health Phys., v. 26, no. 1, pp. 29-39
Leakage neutron spectra for monoenergetic sources and for slab shields of different compositions and thicknesses are calculated. Source energies ranging from 0.34 keV to 10.5 MeV are considered, for the following shield materials: water, concrete, boron-loaded polythene and iron, at thicknesses ranging from 5 to 60 cm. Corrections to readings of several dose-meters are determined, making use of the spectra. The measured percentages of the dose- equivalent are evaluated for the following devicesi thermal neutron detectors, the Harvey albedo dosemeter, Yoshida -Dennis proportional counter, Dennis - Loosemore counter, nuclear emulsion and proton-recoil scintillation coumter. Dose-meter reading calculations are extended up to 15 MeV energy, which is of great practical importance at neutron generator monitoring. Finally recommendations are given concerning the selection of dose-meters for different monoenergetic neutron sources wlth different shieldings. (auth)
- Research Organization:
- Central Research Int. for Physics, Budapest
- NSA Number:
- NSA-29-023317
- OSTI ID:
- 4312265
- Journal Information:
- Health Phys., v. 26, no. 1, pp. 29-39, Journal Name: Health Phys., v. 26, no. 1, pp. 29-39; ISSN HLTPA
- Country of Publication:
- United Kingdom
- Language:
- English
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Related Subjects
*CONCRETES-- NEUTRON TRANSPORT
*IRON-- NEUTRON TRANSPORT
*NEUTRONS-- ENERGY SPECTRA
*POLYETHYLENES-- NEUTRON TRANSPORT
*WATER-- NEUTRON TRANSPORT
ALBEDO
BIOLOGICAL SHIELDS
BORON
COMPARATIVE EVALUATIONS
DOSE EQUIVALENTS
DOSEMETERS
EV RANGE 100-1000
KEV RANGE
LEAKS
MEV RANGE 01-10
N72100* --Physics (Radiation & Shielding)--Radiation Physics
NEUTRON SOURCES
NEUTRON SPECTRA
PHOTOGRAPHIC FILM DOSEMETERS
PROPORTIONAL COUNTERS
PROTON RECOIL DETECTORS
RADIATION DOSES
THERMAL NEUTRONS
THICKNESS
*IRON-- NEUTRON TRANSPORT
*NEUTRONS-- ENERGY SPECTRA
*POLYETHYLENES-- NEUTRON TRANSPORT
*WATER-- NEUTRON TRANSPORT
ALBEDO
BIOLOGICAL SHIELDS
BORON
COMPARATIVE EVALUATIONS
DOSE EQUIVALENTS
DOSEMETERS
EV RANGE 100-1000
KEV RANGE
LEAKS
MEV RANGE 01-10
N72100* --Physics (Radiation & Shielding)--Radiation Physics
NEUTRON SOURCES
NEUTRON SPECTRA
PHOTOGRAPHIC FILM DOSEMETERS
PROPORTIONAL COUNTERS
PROTON RECOIL DETECTORS
RADIATION DOSES
THERMAL NEUTRONS
THICKNESS