Observation of Fission Fragment Damage in Thin Films of Metals

Journal Article · Sun Apr 01 00:00:00 EST 1962 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1728758· OSTI ID:4790534

Kelsch, J. J.; Kammerer, O. F.; Goland, A. N.; Buhl, P. A.

Direct observation of the effects of fission events was made in thin films of Al and Pt by transmission electron microscopy. A very thin layer (10 to 20 A thick) of UO ₂ was incorporated between evaporated metal films. The samples were exposed to a total thermal neutron flux of 2.8 x 10¹⁵ n/cm/². The fission fragments produced tracks in the matrix, the characteristic appearance of which is strongly influenced by the thickness and the atomic number of the matrix. The mechanism of track formation is discussed from the viewpoint of dissipation of energy by the thermal spike mechanism.

• Research Organization: Brookhaven National Lab., Upton, N.Y.
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-016787
• OSTI ID: 4790534
• Journal Information: Journal of Applied Physics, Vol. 33, Issue 4; Other Information: Orig. Receipt Date: 31-DEC-62; ISSN 0021-8979
• Publisher: American Institute of Physics (AIP)
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINUM
ELECTRON MICROSCOPY
ENERGY
FILMS
FISSION PRODUCTS
IRRADIATION
LAYERS
LOSSES
MASS
METALS
NEUTRON BEAMS
PARTICLE TRACKS
PLATINUM
RADIATION EFFECTS
THERMAL NEUTRONS
THERMAL SPIKES
THERMAL STRESSES
TRANSIENTS
URANIUM DIOXIDE