EFFECTS OF HIGH-ENERGY, HIGH-INTENSITY ELECTROMAGNETIC RADIATION ON ORGANIC LIQUIDS. Period covered May 1956 to April 1957
WADC-TR-57-l4l,''A Comparison of High-Energy Electron and Gamma Irradiation Effects on Organic Liquids,'' was issued June 26, l957. A series of organic esters, hydrocarbons, and miscellaneous compounds were subjected to radiation. A quantitative measurement of the amounts and kinds of radiation products produced was made. From the observed products and their amounts, some inferences were made as to the stability of these materials and the influence that their structure had on their stability. Radiolysis of organic liquids is influenced by structure. Molecules containing branch chain and benzyl groupings are more susceptible to radiolytic damage than are molecules containing only straight chain groupings. This greater damage may be explainable in terms of the greater inductive effects possible with the branch chain and benzyl groupings. Greater radiation stability is observed with higher molecular weight compounds. This effect may be explained in terms of the mechanisms of energy absorption and disirtegration by the molecule. Comparison of the radiolytic with mass spectrographic data shows some correlation between the modes of molecular disintegration induced in the two cases. The correlation is best when conditions of radiolysis are similar to those in the mass spectrograph, that is when radiolysis occurs in an essentially low pressure condition through activated species whose haif-life is short and whose diffusion constants or reaction times are long. Both electron and gamma radiation was used. The former received emphasis because of its speed and convenience in the test program. Comparison of the effects of the two types of radiation in six cases shows some quantitative differences in radiolytic yield. The products identified are the same, and the same structural effects are evident. The available data do not permit definite statements of equivalence between electron and gamma effects, although this is indicated. (auth)
- Research Organization:
- Stanford Research Inst., Menlo Park, Calif.
- DOE Contract Number:
- AF33(616)-3738
- NSA Number:
- NSA-12-004110
- OSTI ID:
- 4343947
- Report Number(s):
- WADC-TR-57-465
- Resource Relation:
- Other Information: Project title: MATERIALS ANALYSIS AND EVALUATION TECHNIQUES. Task title: EFFECTS OF NUCLEAR RADIATION.; WADC-TR-57-141, "A Comparison of High-Energy Electron and Gamma Irradiation Effects on Organic Liquids," was issued June 26, 1957. Orig. Receipt Date: 31-DEC-58
- Country of Publication:
- United States
- Language:
- English
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