Accession Number:

AD0684456

Title:

THE ATTENUATION OF Au-198 GAMMA RAYS IN AN 11-INCH STEEL DUCT.

Descriptive Note:

Technical note,

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s):

Report Date:

1966-12-01

Pagination or Media Count:

10.0

Abstract:

Gamma-ray dose-attenuation factors were measured in an 11-inch square steel duct using a Au-198 0.412 Mev gamma-ray source. These attenuation factors were compared with those found using Cs-137 0.662 Mev and Co-60 1.25 Mev gamma-ray sources. It was found that the attenuation factor for Au-198 was always greater than for Cs-137. However, for short second legs, the attenuation factor for Co-60 was greater than both Au-198 and Cs-137. The measured attenuation factors for Au-198 were compared with values obtained using a computer code based on the albedo concept. It was found that calculated attenuation factors are about 20 higher than measured attenuation factors.

Subject Categories:

  • Nuclear Radiation Shielding, Protection and Safety

Distribution Statement:

APPROVED FOR PUBLIC RELEASE