Fluence-to-dose equivalent conversion factors for polyethylene-moderated {sup 252}Cf
- Pacific Northwest Lab., Richland, WA (United States)
- Los Alamos National Lab., NM (United States)
Neutron measurements and calculations were conducted to characterize the polyethylene-moderated {sup 252}Cf source at Oak Ridge National Laboratory`s Radiation Calibration Laboratory (RADCAL). The 12-inch-diameter polyethylene sphere produces a highly scattered neutron spectrum which is more representative of most radiation fields found in the workplace than the D{sub 2}O-moderated {sup 252}Cf neutron spectrum typically used for dosimeter calibration. However, the energy-dependent fluence and dose equivalent must be well known before using such a source for radiation protection purposes. The measurements and calculations were performed as independent checks of the desired quantities which were the flux, the absorbed dose rate, the dose equivalent rate, and the average energy. These quantities were determined for the polyethylene sphere with and without an outer cadmium shell and compared with a D{sub 2}O-moderated {sup 252}Cf source.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 10158649
- Report Number(s):
- PNL-SA-23615; CONF-940424-36; ON: DE94013348; TRN: 94:012967
- Resource Relation:
- Conference: 8. international conference on radiation shielding,Arlington, TX (United States),24-27 Apr 1994; Other Information: PBD: Apr 1994
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALIFORNIUM 252
DOSE EQUIVALENTS
NEUTRON TRANSPORT
MONTE CARLO METHOD
POLYETHYLENES
MODERATORS
NEUTRON FLUX
RADIATION PROTECTION
NEUTRON SOURCES
NEUTRON SPECTRA
070201
560160
663610
DESIGN, FABRICATION, AND OPERATION
RADIONUCLIDE EFFECTS, KINETICS, AND TOXICOLOGY
NEUTRON PHYSICS