Patent Number: 
Section: claims

1. A scintillation system, comprising:a scintillation composition,wherein the scintillation composition comprises:an amorphous polymeric matrix material;a base dye dissolved in the amorphous polymeric matrix material,wherein the base dye incorporates a base fluorescent aromatic compound, andwherein the base fluorescent aromatic compound is at least 5% wt/wt of the scintillation composition; anda primary dye dissolved in the amorphous polymeric matrix material,wherein the primary dye is at least 0.25% wt/wt of the scintillation composition, andwherein when ionizing radiation is incident on the scintillation composition, the primary dye emits primary fluorescence. 2. The scintillation system according to claim 1, further comprising:a secondary dye dissolved in the amorphous polymeric matrix material,wherein the secondary dye is at least 0.005% wt/wt of the scintillation composition, andwherein primary fluorescence emitted by the primary dye is absorbed by the secondary dye such that the secondary dye emits secondary fluorescence. 3. The scintillation system according to claim 2,wherein the secondary dye is in the range 0.005 to 0.05% of the scintillation composition. 4. The scintillation system according to claim 3,wherein at least a portion of the secondary fluorescence is visible. 5. The scintillation system according to claim 2,wherein the base dye is a mixed isomer form of diisopropylnaphthalene,wherein the primary dye is PTP, andwherein the secondary dye is POPOP. 6. The scintillation system according to claim 1,wherein the base fluorescent aromatic compound has at least two rings. 7. The scintillation system according to claim 1,wherein the base fluorescent aromatic compound is an alkyl, aryl, or phenyl substituted compound. 8. The scintillation system according to claim 7,wherein the base fluorescent aromatic compound is an alkyl substituted compound, andwherein the alkyl substituted compound is fluorenecarboxaldehyde diethyl acetal. 9. The scintillation system according to claim 1,wherein the base fluorescent aromatic compound is an alkyl and aryl substituted compound. 10. The scintillation system according to claim 1,wherein the primary dye comprises a primary fluorescent aromatic compound. 11. The scintillation system according to claim 1,wherein the base fluorescent aromatic compound is a bridged at least two ring compound with a planar structure. 12. The scintillation system according to claim 1,wherein the primary dye incorporates a primary fluorescent aromatic compound, andwherein the primary fluorescent aromatic compound is in the range 0.25 to 6% wt/wt of the scintillation composition. 13. The scintillation system according to claim 1,wherein the scintillation composition has an efficiency of transferring energy non-radiatively to the primary dye from the base dye of at least 40%. 14. The scintillation system according to claim 1,wherein at least a portion of the primary fluorescence is visible. 15. The scintillation system according to claim 1,wherein the amorphous polymeric matrix material is cross-linked. 16. The scintillation system according to claim 1,wherein the base fluorescent aromatic compound is at least 15% wt/wt of the scintillation composition. 17. The scintillation system according to claim 1,wherein the scintillation composition has an efficiency of transferring energy non-radiatively to the primary dye from the base dye of at least 60%. 18. The scintillation system according to claim 1,wherein the base dye is a mixed isomer form of diisopropylnaphthalene. 19. A scintillation system, comprising:a scintillation composition,wherein the scintillation composition comprises:an aromatic solvent;a base dye dissolved in the aromatic solvent,wherein the base dye incorporates a base fluorescent aromatic compound, andwherein the base fluorescent aromatic compound is at least 5% wt/wt of the scintillation composition; anda primary dye dissolved in the aromatic solvent,wherein the primary dye is at least 0.25% wt/wt of the scintillation composition,wherein when ionizing radiation is incident on the scintillation composition, the primary dye emits primary fluorescence, andwherein the base fluorescent aromatic compound is an alkyl and aryl substituted compound containing at least two rings. 20. The scintillation system according to claim 19, further comprising:a secondary dye dissolved in the aromatic solvent,wherein the secondary dye is at least 0.0025% wt/wt of the scintillation composition, andwherein the secondary dye absorbs the primary fluorescence from the primary dye and emits secondary fluorescence. 21. The scintillation system according to claim 20,wherein the base dye is a mixed isomer form of diisopropylnaphthalene,wherein the primary dye is PTP, andwherein the secondary dye is POPOP. 22. The scintillation system according to claim 19,wherein the aromatic solvent is pseudocumene or xylene. 23. The scintillation system according to claim 19,wherein the base fluorescent aromatic compound is at least 15% wt/wt of the scintillation composition. 24. The scintillation system according to claim 19,wherein the base dye is a mixed isomer form of diisopropylnaphthalene. 25. A scintillation system, comprising:a scintillation composition,wherein the scintillation composition comprises:an aromatic solvent;a base dye dissolved in the aromatic solvent,wherein the base dye incorporates a base fluorescent aromatic compound, andwherein the base fluorescent aromatic compound is at least 5% wt/wt of the scintillation composition; anda primary dye dissolved in the aromatic solvent,wherein the primary dye is at least 0.25% wt/wt of the scintillation composition,wherein when ionizing radiation is incident on the scintillation composition, the primary dye emits primary fluorescence, andwherein the base fluorescent aromatic compound is a bridged at least two ring compound with a planar structure. 26. The scintillation system according to claim 25,wherein the base fluorescent aromatic compound is an alkyl, aryl, or phenyl substituted compound. 27. The scintillation system according to claim 25, further comprising:a secondary dye dissolved in the aromatic solvent,wherein the secondary dye is at least 0.0025% wt/wt of the scintillation composition, andwherein the secondary dye absorbs the primary fluorescence from the primary dye and emits secondary fluorescence. 28. A scintillation system, comprising:a scintillation composition,wherein the scintillation composition comprises:an aromatic solvent;a base dye dissolved in the aromatic solvent,wherein the base dye incorporates a base fluorescent aromatic compound, andwherein the base fluorescent aromatic compound is at least 5% wt/wt of the scintillation composition; anda primary dye dissolved in the aromatic solvent,wherein the primary dye is at least 0.25% wt/wt of the scintillation composition, andwherein when ionizing radiation is incident on the scintillation composition, the primary dye emits primary fluorescence,wherein the base fluorescent aromatic compound is an alkyl, aryl, or phenyl substituted compound,wherein the base fluorescent aromatic compound is an alkyl substituted compound, andwherein the alkyl substituted compound is fluorenecarboxaldehyde diethyl acetal. 29. The scintillation system according to claim 28, further comprising:a secondary dye dissolved in the aromatic solvent,wherein the secondary dye is at least 0.0025% wt/wt of the scintillation composition, andwherein the secondary dye absorbs the primary fluorescence from the primary dye and emits secondary fluorescence. 30. A scintillation system, comprising:a polymeric matrix;a primary dye dissolved in the polymeric matrix,wherein the primary dye is di-t-pentyl-p-terphenyl, andwherein when ionizing radiation is incident on the scintillation composition the primary dye emits primary fluorescence; anda secondary dye dissolved in the polymeric matrix,wherein the secondary dye absorbs the primary fluorescence and emits secondary fluorescence, andwherein at least a portion of the secondary fluorescence is visible.