Fission Fragment Damage to Platinum

Kinetics of Quenched‐in Vacancies in Pure Platinum

“…Using these values he estimated the binding energy of a di-vacancy to B, = 0.4 eV. His isothermal annealing curves do not show the characteristic S-shape as in the case of gold, though the presence of voids after quenching and annealing in platinum has been proved by transmission electron microscopy [20] and also by a dilatometric method [15]. Also, Kopaii [l6] has estimated the binding energy of a di-vacancy tc B2 = 0.2 eV.…”

“…Since that time, quenched-in vacancies in platinum have been investigated by indirect methods [5 to 181, and observed directly by means of the field ion microscope [19]. Secondary defects due t o quenching and annealing have been studied by means of the transmission electron microscope [20]. The activation energies for the self-diffusion have been measured, too [21,221.…”

The discovery of solid-state nuclear tracks—A personal memoir from 1956–1959

“…Both workers produced valuable results (Silk and Barnes, 1959;Whapham and Makin, 1962). Edward's paper with Barnes, which he sadly did not follow up, becoming very influentialdmuch more so in the initial stages than my own Note, as Durrani (1981) later correctly confirmed, for it spawned a series of electron microscope investigations of tracks between 1960 and 1962 including Bierlein and Mastel (1960), Izui and Fujita (1961), Bonfiglioli et al (1961), Ruedl et al (1961Ruedl et al ( , 1962, Bowden and Montagu-Pollock (1961), with Chadderton (1961, 1962). My work on LiF was much more modest, being carried out in spare moments.…”

Electron Microscopy

“…Fission fragment damage in relatively thick platinum foils studied by Rued1 et at. (180) was manifested by linear arrays of black dots. These configurations were more abundantly produced when fission fragments, originating from an offset and superimposed layer of natural uranium, hit the platinum foil a t a low grazing angle.…”