GAMMA-RAY PENETRATION EXPERIMENTS FOR A LIGHT AIRCRAFT CARRIER USING DISTANT SOURCES AND SOURCES SIMULATING CONTAMINATION OF THE HULL

Technical Report · Thu Oct 19 04:00:00 EDT 1961

OSTI ID:4804476

Tomoeda, S; Hastings, M B; Miller, W G

The penetration of gamma rays into compartments of an aircraft carrier from radioisotopes was measured. In one experiment, Co/sup 60/ and Cs/sup 137/ point isotropic sources were exposed near the hull of the ship to simulate hull contamination. Measurements of dose were made in the forward part of the ship at four different deck levels. Dose distribution data are presented for the two sources used and for the different source points considered. ln the second experiment, a nominal 500-uurie eollimated 1000 source was exposed at a distance of roughly 100 feet from designated points to irradiate two general regions of the ship. Dose distributions are presented for each of 18 different source positions used. Five decks were instrumented in each of the two general regions considered. Diagrams indicating source positions, detector positions, and hullplating thicknesses are also presented. (auth)

• Research Organization: Naval Radiological Defense Lab., San Francisco
• NSA Number: NSA-16-006075
• OSTI ID: 4804476
• Report Number(s): USNRDL-TR-533
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AIRCRAFT
CESIUM 137
COBALT 60
CONTAMINATION
DETECTION
DISTRIBUTION
GAMMA RADIATION
MEASURED VALUES
PHYSICS
RADIATION DOSES
RADIATION SOURCES
RADIOISOTOPES
SHIELDING
SHIPS