Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Reexamination Certificate
2007-07-13
2009-06-02
Porta, David P (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
Reexamination Certificate
active
07541590
ABSTRACT:
A method for automating and extending the density range for gamma ray attenuation correction algorithms for all classes of non-destructive assay systems including those without automated shutters or automated collimators. A system and software for implementing the method are also provided. The system features a dual-intensity transmission source and utilizes a three pass scanning protocol. The high-energy source in conjunction with a beam modulator produces a high and low energy beam. Automated software determines which beam data to use in tomographic reconstruction of an object being scanned.
REFERENCES:
patent: 5155365 (1992-10-01), Cann et al.
patent: 5999588 (1999-12-01), Shao et al.
patent: 6333958 (2001-12-01), Stewart et al.
patent: 6791093 (2004-09-01), Caldwell et al.
Estep et al., “Tomographic Gamma Scanning to Assay Heterogeneous Radioactive Waste”, 1994, Nuclear Science and Engineering, vol. 118, pp. 145-152.
Palacios et al., “A PC-based discrete tomography imaging software system for assaying radioactive waste containers”, 2003, Elsevier, Nuclear Instruments and Methods in Physics Research A, vol. 508, pp. 500-511.
S. Croft, et al.; “Extending the Dynamic Range of the TGS Through the Use of a Dual Intensity Transmission Beam”; 47th INMM Annual Meeting, Nashville, Tennessee, USA; Jul. 18, 2006; 8 pp.
Ronald M. Keyser, et al.; “A Digital Method for Dead Time Compensation in Nuclear Spectroscopy”; ESARDA Symposium, Burges, Belgium; May 9, 2001; 6 pp.
D.G. Langner, et al.; “A Large Multiplicity Counter for the Measurement of Bulk Plutonium”; Institute of Nuclear Materials Management, Naples, FL, USA; Jul. 17-20, 1994; 7 pp.
(Author Unknown); “Active Neutron Coincidence Counting Techniques for 235U Mass Determination”; ESARDA; Jul. 2005; 3 pp.
M.S. Krick, et al.; “Energy-Dependent Bias in Plutonium Verification Measuremetns Using Thermal Neutron Multiplicity Counters”; Los Alamos National Laboratory, Los Alamos, NM, USA; Report LA-UR-97-3427; Oct. 1991; 12 pp.
(Author Unknown); “Passive Neutron Coincidence Counting Techniques for Pu Mass Determination”; ESARDA; NCC; Jan. 3, 2004; 4 pp.
James E. Stewart, et al.; “New Shift-Reigster Electronics for Improved Precision of Neutron Coincidence and Multiplicity Assays of Plutonium and Uranium Mass”; Los Alamos National Laboratory, Los Alamos, NM, USA; Report LA-UR-99-4927; Oct. 25, 1999; 12 pp.
Croft Stephen
Kane Susan C.
McClay Patty
McElroy, Jr. Robert D.
Mueller Wilhelm F.
Canberra Albuquerque, Inc.
Carstens David W.
Carstens & Cahoon LLP
Kim Kiho
Porta David P
LandOfFree
Extending the dynamic range of the TGS through the use of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extending the dynamic range of the TGS through the use of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extending the dynamic range of the TGS through the use of a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4059221