Neutron and photon fluence-to-dose conversion factors for active marrow of the skeleton

Conference · Sun Jan 01 00:00:00 EST 1984

OSTI ID:6441010

Kerr, G D; Eckerman, K F

Calculation of the absorbed dose to active marrow is a complex problem because charged particle equilibrium may not exist near a soft tissue-bone interface and it is difficult to model the intricate intermixture of soft tissue and bone in the skeleton. This study provides the first definitive calculations for a variety of bones and a wide range of neutron and photon energies. We avoid the assumption of a special geometry by using measured chord-length distributions to represent the microstructure of trabecular bone which contains the active marrow. Results of our calculations for neutrons and photons with energies up to 20 MeV are presented as dose response factors. The response factors can be applied in radiation transport calculations of absorbed dose in active marrow from photons and neutrons externally incident on the body and photons produced by neutrons interactions within the body. 34 references, 6 figures, 2 tables.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6441010
• Report Number(s): CONF-8409161-2; ON: DE85001250
• Resource Relation: Conference: 5. symposium on neutron dosimetry, Munich, F.R. Germany, 17 Sep 1984
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BONE MARROW
RADIATION DOSES
DOSIMETRY
CALCULATION METHODS
EXTERNAL IRRADIATION
GAMMA RADIATION
NEUTRONS
PHOTONS
RADIATION TRANSPORT
ANIMAL TISSUES
BARYONS
BODY
DOSES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HEMATOPOIETIC SYSTEM
IONIZING RADIATIONS
IRRADIATION
MASSLESS PARTICLES
NUCLEONS
ORGANS
RADIATIONS
TISSUES
560152* - Radiation Effects on Animals- Animals