← Back to Patent Explorer
US4997597A Expired / Lapsed US ⏱️ 0.0 years remaining

Solid-state radioluminescent compositions

Assignee: United States Department of Energy
•
Filing: 1989-11-13
•
Granted: 1991-03-05
•
Expires: 2009-11-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A solid state radioluminescent composition for light source comprises an optically clear polymer organic matrix containing tritiated organic materials and dyes capable of "red" shifting primary scintillation emissions from the polymer matrix. The tritiated organic materials are made by reducing, with tritium, an unsaturated organic compound that prior to reduction contains olefinic or alkynylic bonds.

Inventors

  • 👤 Roger L. Clough
  • 👤 John T. Gill
  • 👤 Daniel B. Hawkins
  • 👤 Clifford L. Renschler
  • 👤 Timothy J. Shepodd
  • 👤 Henry M. Smith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 18:53
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/04; C09K11/06

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 73 words
An optically clear solid state radioluminescent composition comprising an optically clear polymer matrix; a tritiated organic compound which is soluble in said matrix, said organic compound having been made by reducing, with tritium, an unsaturated organic compound that prior to reduction contains olefinic or alkynylic bonds; and an organic scintillation dye which is soluble in said matrix, and capable of transferring a primary scintillation from said polymer matrix to a red shift emission.
Claim 2
Dependent Claim 73 words
An optically clear solid state radioluminescent composition comprising an optically clear polymer matrix; a tritiated organic compound which is soluble in said matrix, said organic compound having been made by reducing, with tritium, an unsaturated organic compound that prior to reduction contains olefinic or alkynylic bonds; and an organic scintillation dye which is soluble in said matrix, and capable of transferring a primary scintillation from said polymer matrix to a red shift emission.
Claim 3
Dependent Claim 16 words
The radioluminescent composition of claim 1, wherein: said polymer matrix has a high degree of aromaticity.
Claim 4
Dependent Claim 13 words
The radioluminescent composition of claim 2, wherein: said tritiated organic compound is: ##STR1##
Claim 5
Dependent Claim 18 words
The radioluminescent composition or light source of claim 1, wherein: said polymer matrix is polystyrene, polyvinyltoluene, or polyvinylxylene.
Claim 6
Dependent Claim 16 words
The radioluminescent composition or light source of claim 4, wherein: said tritiated organic compound is: ##STR2##
Claim 7
Dependent Claim 18 words
The radioluminescent composition of claim 2, wherein said organic scintillation dye is: phenyl-oxazole-phenyl-oxazole-phenyl, trans-stilbene, alpha-naphthylphenyloxazole, 2-phenyl-5-(4-biphenylyl)-1,3,4-oxadiazole, or 9,10-diphenylanthracene.
Claim 8
Dependent Claim 18 words
The radioluminescent composition of claim 3, wherein said organic scintillation dye is: phenyl-oxazole-phenyl-oxazole-phenyl, trans-stilbene, alpha-naphthylphenyloxazole, 2-phenyl-5-(4-biphenylyl)-1,3,4-oxadiazole, or 9,10-diphenylanthracene.
Claim 9
Dependent Claim 18 words
The radioluminescent composition of claim 4, wherein said organic scintillation dye is: phenyl-oxazole-phenyl-oxazole-phenyl, trans-stilbene, alpha-naphthylphenyloxazole, 2-phenyl-5-(4-biphenylyl)-1,3,4-oxadiazole, or 9,10-diphenylanthracene.
Claim 10
Dependent Claim 18 words
The radioluminescent composition of claim 5, wherein said organic scintillation dye is: phenyl-oxazole-phenyl-oxazole-phenyl, trans-stilbene, alpha-naphthylphenyloxazole, 2-phenyl-5-(4-biphenylyl)-1,3,4-oxadiazole, or 9,10-diphenylanthracene.

References Cited (Backward Citations)

US3238139A Cited
US3147243A Cited
US3210288A Cited
US3325420A Cited
US3886082A Cited
US4594179A Cited
US4935632A Cited
US4889660A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-03-04 1994-09-03 1995-03-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-03-04 1998-09-03 1999-03-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-03-04 2002-09-03 2003-03-05 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag