Accession Number:

AD0256807

Title:

CALCULATION OF RADIATION DOSE RATE FROM CYLINDRICAL AIRBORNE FISSION-PRODUCT SOURCES

Descriptive Note:

Corporate Author:

NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF

Personal Author(s):

Report Date:

1961-05-01

Pagination or Media Count:

1.0

Abstract:

A mathematical expression for radiation dose rate is developed for the case of a cylindrical source, using an effective attenuation coefficient for the spectrum of gamma ray energies of the fission-product mixture for a given time after fission. The expression has been evalu-ATED NUMERICALLY, AND THE RESULTING DOSE-RATE RATIOS ARE PRESENTED IN TABULAR FORM FOR VARIOUS SIZES OF CYLINDER AND DISTANCES FROM CYLINDER AXIS TO RECEIVER. The results are presented in tables of dose-rate ratios, that is, the ratio of the dose rate at a given distance from a cylindrical source of given dimensions and activity density to the dose rate within an infinite homogeneous volume having the same activity density. A rapid, approximate method of determining many additional values of the doserate ratio is given. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE