On the Adsorption of Some Fission Products on Various Surfaces

Abstract

Adsorption of Fission Products on Various Surfaces 881 than with electrons. The great effect of radiation quality in water, in contrast, is due to the active competition in the particle tracks between firstand second-order radical reactions.If the smaller radicals are formed by breakup of pentane molecules they should all be "primary" radicals with the free valence at the end of the chain. The C5Hn could be primary, or either of two secondary forms, depending on where the hydrogen atom was lost from pentane. A random recombination of such radicals imposes considerable restriction on the relative yields of the various products. Thus if the 100-e.v. yields of methyl, ethyl, propyl, butyl, sec-amyl and n-amyl are denoted, respectively, by A, B, C, D, E and F, and the sum of these six (the total radical yield) by R, we will have for observed yields of heavy products the expressions shown in the third column of Table I. We have ten observations to fit with six parameters-A fairly good fit, shown in Table I (not necessarily the best fit) has been obtained by assuming A = 0.

Adsorption of Hydrolyzed Hafnium Ions on Glass

“…In order to do so one needs exact information on the surface area of the adsorbent. Several attempts to calculate surface coverages in the adsorption of hydrolyzed metal ions have been reported (4,10,11,24,27). None of these results can be accepted as meaningful because the geometric surface area was always used in the calculations which is certainly smaller than the true surface area of the adsorbent.…”

The Adsorption of 147Pm from Solution on to Metal Surfaces

“…'radiocolloid' formation [7], 3. ion exchange adsorption in a corrosion layer, usually of oxide [8], 4. exchange, where a metal dips into a Solution of its own ions [9], and 5. by electrica! double layer adsorption [10]. The results reported in this work show that adsorption of these cations on to metal surfaces is not random or particulate when occurring from clean solutions, and indicate the importance of oxide layers in adsorption of these ions.…”

Review of Literature on Ruthenium Behavior in Nuclear Power Plant Severe Accidents

“…Belloni et al 76 carried out experiments on the adsorption of ruthenium on different surfaces, such as platinum, glass, silver, etc. Unlike some other fission products, ruthenium adsorption does not follow a Langmuir isotherm, but the kinetics obeys Henry's law~linear isotherm!.…”