Accession Number : ADA141060

Title :   Method for Calculating the Fractional Rate of Radioactivity Deposition for a Range of Yields and Various Particle Size - Activity Distributions.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Gogolin,J H

PDF Url : ADA141060

Report Date : Mar 1984

Pagination or Media Count : 82

Abstract : A set of empirical equations is produced to calculate the fractional arrival rate of radioactivity of the ground where the radioactivity is the result of a nuclear surface burst. A total of 20 such equations are given for four log-normal particle size distributions and five nuclear yields from 1KT to 15MT. The fractional arrival rate of radioactivity on the ground, g(t), data for the 20 cases were generated by a fast running fallout smearing code. The results were fit with a sixth degree Laurent series for each of five particular yields. For each size distribution the Laurent series coefficients for the five yields were then fit with a polynomial function of yield to enable computation of g(t) data for any arbitrary yield between 1KT and 15MT. Calculation of g(t) data with these empirical equations may be accomplished on a hand held calculator and produce results which are accurate to within at least 4 percent of the fallout smearing computer code data.

Descriptors :   *Radioactivity, Surface burst, Yield(Nuclear explosions), Deposition, Particle size, Polynomials, Fallout, Computer programming, Theses

Subject Categories : Radioactiv, Radioactive Wastes & Fission Prod

Distribution Statement : APPROVED FOR PUBLIC RELEASE