Aromatic eutectic mixtures and their use as liquid scintillators
AssigneesCommissariat A L'energie Atomique Et Aux Energies Alternatives, Centre National de la Recherche Scientifique (CNRS), Universite Clermont Auvergne
InventorsPauline Vergnory, Guillaume Bertrand, Jean-Michel Andanson
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Abstract
This disclosure concerns aromatic and polyaromatic eutectic mixtures and their use as liquid scintillators. The mixtures may include compounds including di-tert-butyl-benzenes, biphenyls and terphenyls, polycyclic aromatic hydrocarbons selected from naphthalenes, acenaphthenes, anthracenes and pyrenes, fluorenes and carbazoles, 2,5-Diphenyloxazoles, and compounds of formula (I).
Claims13
A composition comprising two or more compounds chosen from:
- Di-tert-butyl-benzenes;
- Biphenyls and terphenyls, optionally substituted by two groups independently selected from the linear or branched C1 to C6 alkyls;
- Polycyclic aromatic hydrocarbons selected from naphthalenes, acenaphthenes, anthracenes and pyrenes, which are optionally substituted by two groups independently selected from linear or branched C1 to C6 alkyls;
- Fluorenes and carbazoles, which are optionally substituted by two or four groups independently selected from linear or branched C1 to C6 alkyls;
- 2,5-Diphenyloxazoles, optionally substituted by two groups independently selected from linear or branched C1 to C6 alkyls;
- and
- Compounds of formula (I):
- wherein:
- i is equal to 0 or 1;
- Ra, Rb, Rc and Rd are independently selected from H and phenyl, at least two of Ra, Rb, Rc and Rd being phenyl;
- and
- the compounds of formula (I) being optionally substituted by two groups chosen independently from linear or branched C1 to C6 alkyls;
- the composition not consisting of biphenyl and naphthalene.
A method of use of a composition for liquid scintillation, the composition comprising at least two compounds selected from:
- Di-tert-butyl-benzenes;
- Biphenyls and terphenyls, optionally substituted by two groups independently selected from the linear or branched C1 to C6 alkyls;
- Polycyclic aromatic hydrocarbons selected from naphthalenes, acenaphthenes, anthracenes and pyrenes, which are optionally substituted by two groups independently selected from linear or branched C1 to C6 alkyls;
- Fluorenes and carbazoles, which are optionally substituted by at least two groups independently selected from linear or branched C1 to C6 alkyls;
- 2,5-Diphenyloxazoles, optionally substituted by two groups independently selected from linear or branched C1 to C6 alkyls;
- and
- Compounds of formula (I):
- wherein:
- i is equal to 0 or 1;
- Ra, Rb, Rc and Rd are independently selected from H and phenyl, at least two of Ra, Rb, Rc and Rd being phenyl;
- and
- the compounds of formula (I) being optionally substituted by two groups independently selected from linear or branched C1 to C6 alkyls.
Dependencies are inferred from the claim text.