Radiation-related posterior lenticular opacities in Hiroshima and Nagasaki atomic bomb survivors based on the DS86 dosimetry system

Journal Article · Mon Jan 01 00:00:00 EST 1990 · Radiation Research; (USA)

DOI:https://doi.org/10.2307/3577557· OSTI ID:6937021

Otake, M; Schull, W J ^[1]

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1. Radiation Effects Research Foundation, Hiroshima (Japan)

This paper investigates the quantitative relationship of ionizing radiation to the occurrence of posterior lenticular opacities among the survivors of the atomic bombings of Hiroshima and Nagasaki suggested by the DS86 dosimetry system. DS86 doses are available for 1983 (93.4%) of the 2124 atomic bomb survivors analyzed in 1982. The DS86 kerma neutron component for Hiroshima survivors is much smaller than its comparable T65DR component, but still 4.2-fold higher (0.38 Gy at 6 Gy) than that in Nagasaki (0.09 Gy at 6 Gy). Thus, if the eye is especially sensitive to neutrons, there may yet be some useful information on their effects, particularly in Hiroshima. The dose-response relationship has been evaluated as a function of the separately estimated gamma-ray and neutron doses. Among several different dose-response models without and with two thresholds, we have selected as the best model the one with the smallest x2 or the largest log likelihood value associated with the goodness of fit. The best fit is a linear gamma-linear neutron relationship which assumes different thresholds for the two types of radiation. Both gamma and neutron regression coefficients for the best fitting model are positive and highly significant for the estimated DS86 eye organ dose.

• OSTI ID: 6937021
• Journal Information: Radiation Research; (USA), Vol. 121:1; ISSN 0033-7587
• Country of Publication: United States
• Language: English

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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
A-BOMB SURVIVORS
RADIATION DOSES
CATARACTS
RADIOINDUCTION
COMPARATIVE EVALUATIONS
DOSE-RESPONSE RELATIONSHIPS
GAMMA RADIATION
HIROSHIMA
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NEUTRONS
NUCLEAR EXPLOSIONS
RADIATION INJURIES
ASIA
BARYONS
BIOLOGICAL EFFECTS
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DOSIMETRY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EXPLOSIONS
FERMIONS
HADRONS
HUMAN POPULATIONS
INJURIES
IONIZING RADIATIONS
JAPAN
NUCLEONS
POPULATIONS
RADIATION EFFECTS
RADIATIONS
SENSE ORGANS DISEASES
560151* - Radiation Effects on Animals- Man