Radiography with the fission neutrons from californium-252. Final report

Technical Report · Fri Jul 01 00:00:00 EDT 1977

OSTI ID:5148398

Antal, J J; Becker, R L

Fission neutron radiography, with images formed on thin sheets of cellulose nitrate, has been investigated using neutrons from /sup 252/Cf. A polyethylene converter provides recoil protons from neutron elastic scattering by hydrogen, which in turn create damage in the cellulose nitrate. Chemical etching then produces a frosted etch-track image which can be reproduced photographically by either scattered or transmitted light. The most readily available cellulose nitrate sheets were found to contain undesirable internal defects and thus films are recast in thicknesses of several mils. The images are of high resolution, as expected from a computer calculation which considered the direction and ranges of the recoil protons in polyethylene. All materials, including those of low atomic weight, may be radiographed with good penetration. The technique is simple and employs inexpensive materials.

• Research Organization: Army Materials and Mechanics Research Center, Watertown, Mass. (USA)
• OSTI ID: 5148398
• Report Number(s): AD-045362; AMMRC-TR-77-18
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
NEUTRON RADIOGRAPHY
NEUTRON SOURCES
CALIFORNIUM 252
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM ISOTOPES
EVEN-EVEN NUCLEI
HEAVY NUCLEI
INDUSTRIAL RADIOGRAPHY
ISOTOPES
MATERIALS TESTING
NONDESTRUCTIVE TESTING
NUCLEI
PARTICLE SOURCES
RADIATION SOURCES
RADIOISOTOPES
TESTING
YEARS LIVING RADIOISOTOPES
420500* - Engineering- Materials Testing