Preliminary estimates of radiation exposures for manned interplanetary missions from anomalously large solar flare events

Technical Report · Sun May 01 04:00:00 EDT 1988

OSTI ID:6755535

Townsend, L W; Nealy, J E; Wilson, J W

Preliminary estimates of radiation exposures for manned interplanetary missions resulting from anomalously large solar flare events are presented. The calculations use integral particle fluences for the February 1956, November 1960, and August 1972 events as inputs into the Langley Research Center nucleon transport code BRYNTRN. This deterministic code transports primary and secondary nucleons (protons and neutrons) through any number of layers of target material of arbitrary thickness and composition. Contributions from target nucleus fragmentation and recoil are also included. Estimates of 5 cm depth doses and dose equivalents in tissue are presented behind various thicknesses of aluminum, water, and composite aluminum/water shields for each of the three solar flare events.

• Research Organization: National Aeronautics and Space Administration, Hampton, VA (USA). Langley Research Center
• OSTI ID: 6755535
• Report Number(s): N-88-25427; NASA-TM-100620; NAS-1.15:100620
• Country of Publication: United States
• Language: English

Related Subjects

560151* -- Radiation Effects on Animals-- Man
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALUMINIUM
ASTRONAUTS
BARYONS
COMPUTERIZED SIMULATION
DOSES
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
HAZARDS
HEALTH HAZARDS
HYDROGEN COMPOUNDS
INTERPLANETARY SPACE
MATERIALS
METALS
NEUTRONS
NUCLEONS
OXYGEN COMPOUNDS
PERSONNEL
PROTONS
RADIATION DOSES
RADIATION HAZARDS
RADIATIONS
SIMULATION
SOLAR ACTIVITY
SOLAR FLARES
SOLAR PARTICLES
SOLAR RADIATION
SPACE
SPACE FLIGHT
STELLAR RADIATION
TISSUE-EQUIVALENT MATERIALS
TRANSPORT THEORY
WATER