Thin-walled neoprene containers prevent secondary radiation, scatter, and undercut during radiographic inspection. The containers are filled with a mixture of barium sulfate, red lead, and petroleum jelly that achieves the required absorption rate

Struckus, A. A.

English

NASA Technical Reports Server

October 1967	 Brief 67-10391 
NASA TECH BRIEF 
NASA Tech Briefs are issued to summarize specific innovations derived from the U.S. space program, 
to encourage their commercial application. Copies are available to the public at 15 cents each 
from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Method Prevents Secondary Radiation in Radiographic Inspection 
I	 Work 
Previous Method
	
Present Method 
The problem: 
To devise a rapid, simple method for preventing 
secondary radiation, scatter, and undercut during 
radiographic inspection. Previous methods have in-
volved the use of barium putty, lead sheet, or lead 
pellets and have been very time consuming. 
The solution: 
Thin-walled neoprene containers, made in con-
figurations that fit specific applications, are filled 
with a mixture of substances that achieves the re-
quired absorption rate. 
How it's done: 
The neoprene containers are filled with a mixture of 
barium sulfate, red lead, and petroleum jelly. The 
formula may be varied to absorb X-rays of differing 
intensities. For average use, a mix of two parts 
petroleum jelly, five parts barium sulfate, and one
part red lead has been used effectively. 
Note: 
Inquiries concerning this invention may be di-
rected to:
Technology Utilization Officer 
Marshall Space Flight Center 
Huntsville, Alabama 35812 
Reference: B67-10391 
Patent status: 
Inquiries about obtaining rights for the commercial 
use of this invention may be made to NASA, Code 
GP, Washington, D.C. 20546.
Source: A. A. Struckus
of North American Aviation, Inc. 
under contract to

Marshall Space Flight Center 
(MFS-1 3383) 
Category 02 
-S
This document was prepared under the sponsorship of the National 
Aeronautics and Space Administration. Neither the United States 
Government nor any person acting on behalf of the United States
Government assumes any liability resulting from the use of the 
information contained in this document, or warrants that such use 
will be free from privately owned rights.
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Method prevents secondary radiation in radiographic inspection

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