Comparative recoil experiments with metal phenyl compounds
Comparative recoil experiments with metal phenyl compounds
The high energetic recoil products produced in solids and liquids by nuclear reactions may react with their surrounding molecules forming various amounts of different labelled radioactive compounds. Comparative experiments of the products formed by (n,$\gamma$)- and (n, 2n)-processes were made on th...
Saved in:
Personal Name(s): | Claridge, R. F. C. |
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Merz, E. / Riedel, H. J. | |
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Kernforschungsanlage Jülich, Verlag
1965
|
Physical Description: |
p. 53-58 |
Document Type: |
Report Book |
Research Program: |
ohne Topic |
Series Title: |
Berichte der Kernforschungsanlage Jülich
245 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
The high energetic recoil products produced in solids and liquids by nuclear reactions may react with their surrounding molecules forming various amounts of different labelled radioactive compounds. Comparative experiments of the products formed by (n,$\gamma$)- and (n, 2n)-processes were made on the metal phenyl compounds of Germanium, Tin, Lead, Arsenic and Antimony. Applying different separation methods, e.g. adsorption chromatography on alumina, ion exchange and electrophoresis, the various radioactive recoil products were separated and the individual yields determined. lt was found that in nuclear reactions the compounds of the mentioned metals having identical ligands are forming practically the same classes of recoil products. The yield distribution however reveals characteristic alterations between the (n, $\gamma$)- and the (n, 2n)-reaction. Only a small influence on the yields is perceptible when irradiations are performed in liquids and solutions, respectively. The results are discussed on the basis of theoretical considerations of the amount of kinetic energy transferred to the reacting molecule by the nuclear recoil and the resulting excitation. The hypothesis is put forward that the kind and quantity of certain new radioactive species produced in connection with nuclear events is less a function of the nature and concentration of primary recoil fragments than are the ions, radicals and lattice defects imparted to the irradiated materials by secondary recoil effects (elastic and inelastic interactions), including the peculiar influence of oxygen present in the irradiated samples. |