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Energy transfer in dioxane liquid scintillators

✍ Scribed by M. Bourdeaux-Pontier; M. Sarrazin; R. Paulin; C. Briand

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
567 KB
Volume
32
Category
Article
ISSN
0009-2614

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✦ Synopsis

The study of the radiation yields of free radical fomPtiofi in decierated dioxane solutions containing a fluorescent solute (PPO or PBJJ) or a chlorinated compound (CC'14 or CHC&) shows that there are two possible mechanisms for.energY tmnsfer from superexcited StateS: transfer of the electronic excimtion energy. and the ionic mechati which invalve.~ the electrons. formed by nutoionization. We propose a kinetic scheme which agrees with experimenti RNI~L

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Dioxane-based scintillation mixtures containing P-emitting radioisotopes show a decreased efficiency under the following conditions: low water concentration in the sample, the presence of some metal ions, e.g., Ca\*+, Mg2+, and certain SH-and 14C-labeled compounds, e.g., nucleotides. If only one of