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US 5,627,113 AGranted
Copper activated thermoluminescence dosimeter and method
AssigneeCouncil of Scientific and Industrial Research
InventorRadhaballabh Debnath
Life of this patent
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Abstract
A novel copper activated thermoluminescence dosimeter comprising a glass composition having: about 94-97 weight percent SiO.sub.2 ; about 0.4 to 2 weight percent Al.sub.2 O.sub.3 ; about 0.02 to 1 weight percent M.sub.2 O, where M comprises Na.sup.+ or K.sup.+ ; about 2 to 6 weight percent B.sub.2 O.sub.3 ; and Cu(I), where Cu(I) is present at a level between about 10.sup.18 to 10.sup.19 ions/cm.sup.3 ; method of making the same.
Claims1
A glass composition, comprising a blend having an ultimate composition including:
- (a) by weight, about 94-97 percent SiO.sub.2 ;
- (b) by weight, about 0.4 to 2 percent Al.sub.2 O.sub.3 :
- (c) by weight, about 0.2 to 1 percent M.sub.2 O, where M is Na.sup.+ or K.sup.+ ;
- (d) by weight, about 2 to 6 percent B.sub.2 O.sub.3 ;
- and
- (e) Cu(I), wherein Cu(I) is present between about 10.sup.18 to 10.sup.19 ions/cm.sup.3.
3 more elements
Dependencies are inferred from the claim text.