Accession Number:

AD0602492

Title:

FALLOUT RADIATION ENERGY DISTRIBUTION AS A FUNCTION OF ALTITUDE,

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s):

Report Date:

1964-07-15

Pagination or Media Count:

357.0

Abstract:

The gamma-ray spectra in the air above a plane containing fallout fission products were calculated as a function of time and altitude. Similar calculations were made with the spectra of cobalt-60 and cesium-137 assumed as source terms. An experiment was designed to measure the spectra calculated for cobalt-60 utilizing eleven cobalt-60 sources and a very sensitive sodium-iodide gamma-ray spectrometer. The results of the calculations indicate that the relative spectra are constant above 800 feet for times after fission greater than one day and, furthermore, that the variation of the dose rate with altitude is constant for this time interval. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE