CALCULATION OF RADIATION DOSE RATE FROM CYLINDRICAL AIRBORNE FISSION-PRODUCT SOURCES
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1961
- Accession Number
- AD0256807
Entities
People
- E.s. Shapiro
- I.o. Huebsch
Organizations
- Naval Radiological Defense Laboratory