Induced nuclear reactions: processes – systems – and elements – Nuclear transmutation – Gamma or charged particle activation analysis
Reexamination Certificate
2007-01-24
2011-10-04
Palabrica, Ricardo (Department: 3663)
Induced nuclear reactions: processes, systems, and elements
Nuclear transmutation
Gamma or charged particle activation analysis
C376S156000, C250S492100
Reexamination Certificate
active
08031825
ABSTRACT:
Non-destructive testing apparatus may comprise a photon source and a source material that emits positrons in response to bombardment of the source material with photons. The source material is positionable adjacent the photon source and a specimen so that when the source material is positioned adjacent the photon source it is exposed to photons produced thereby. When the source material is positioned adjacent the specimen, the specimen is exposed to at least some of the positrons emitted by the source material. A detector system positioned adjacent the specimen detects annihilation gamma rays emitted by the specimen. Another embodiment comprises a neutron source and a source material that emits positrons in response to neutron bombardment.
REFERENCES:
patent: 3593025 (1971-07-01), Grosskreutz
patent: 4064438 (1977-12-01), Alex et al.
patent: 4835390 (1989-05-01), Blatchley et al.
patent: 4897549 (1990-01-01), Zerda et al.
patent: 5530245 (1996-06-01), Huang
patent: 6208704 (2001-03-01), Lidsky et al.
patent: 6693277 (2004-02-01), Cowan et al.
patent: 7041508 (2006-05-01), Smith
patent: 7231011 (2007-06-01), Akers
Alvarez et al., “Photoneutron Cross Sections for Na-23 and Mg-25”, Physical Review C, vol. 4, No. 5, Nov. 1971, pp. 1673-1679.
Alvarez et al., “Photoneutron Cross Sections for Mn-55 and Co-59”, Physical Review C, vol. 20, No. 1, Jul. 1979, pp. 128-138.
Nuclides and Isotopes, 14th Edition, GE Nuclea Energy, 1989, pp. 4, 5, 20, 23 and 25.
IAEA Photonuclear Data Library, Mar. 2000, pp. 104, 147, 153.
Panofsky et al., “The Reaction N-14(gamma, 2n)N-12”, Phys. Rev. 87, 543 (1952).
Marshall, “Properties of (gamma,n) Cross Sections,” Phys. Rev. 83, 345 (1951).
Battelle Energy Alliance, LLC
Fennemore Craig P.C.
Palabrica Ricardo
LandOfFree
Non-destructive testing method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-destructive testing method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-destructive testing method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4275184