Radiolysis of the Fricke dosimeter with {sup 58}Ni and {sup 238}U ions: Response for particles of high linear energy transfer

Journal Article · Thu Sep 26 04:00:00 EDT 1996 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/jp961482x· OSTI ID:405314

LaVerne, J A; Schuler, R H ^[1]

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1. Univ. of Notre Dame, IN (United States)

The radiation chemical yields of the Fricke dosimeter have been determined for incident nickel and uranium ions with energies of up to 470 and 3780 MeV, respectively. Track segment yields have been determined from the observed energy dependences. Experiments utilizing both aerated and deaerated solutions indicate that at the very high values of linear energy transfer (LET) exhibited by these ions in water (a maximum of 5000 and 17000 eV/nm, respectively) a significant fraction of radicals escape from the track. The radiation chemical yield of H atoms for both ions is found to be nearly 10% of the value with fast electrons. The data also suggest that there is a substantial yield of an oxidizing species produced by particles of very high LET. A comparison of the results with particles of lower LET is made. 29 refs., 6 figs., 1 tab.

• OSTI ID: 405314
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 39 Vol. 100; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
66 PHYSICS
CHEMICAL DOSEMETERS
DECOMPOSITION
DOSEMETERS
ENERGY TRANSFER
NICKEL 58
NICKEL IONS
RADIOLYSIS
URANIUM 238
URANIUM IONS
WATER