Pileup rejection in an energy-dispersive radiation...

Details Pileup rejection in an energy-dispersive radiation... Pileup rejection in an energy-dispersive radiation...

2008-08-01

2010-10-05

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

C250S36100C, C250S370060, C250S370090, C702S040000, C702S079000, C702S190000

Reexamination Certificate

active

07807973

ABSTRACT:
A method of detecting a pileup in an energy-dispersive radiation spectrometry system, wherein a filter of the system generates a first pulse in response to a preamplifier signal, and wherein the system has one or more fast channels having an energy of full efficiency wherein substantially all photons received having at least the full efficiency energy are detected. The method includes measuring an above threshold time duration of the filter, determining that the fast channels have not made any detections while the first pulse is above the minimum detectable threshold energy of the filter, in response thereto, declaring a pileup if the above threshold time duration exceeds a longest expected pulse duration that is a duration of a second pulse that would be output by the filter in response to a single photon having an energy equal to the energy of full efficiency being received by the system.

REFERENCES:
patent: 3872287 (1975-03-01), Koeman
patent: 4152596 (1979-05-01), Marshall, III
patent: 4217496 (1980-08-01), Daniels et al.
patent: 4593198 (1986-06-01), Pang et al.
patent: 4612443 (1986-09-01), Alcidi
patent: 4658216 (1987-04-01), Goulding et al.
patent: 4692626 (1987-09-01), Westphal
patent: 4835703 (1989-05-01), Arnold et al.
patent: 4870282 (1989-09-01), Lacy
patent: 4968889 (1990-11-01), Hartwell et al.
patent: 5120962 (1992-06-01), Rundt et al.
patent: 5134294 (1992-07-01), Rundt et al.
patent: 5206174 (1993-04-01), Gehrke et al.
patent: 5210423 (1993-05-01), Arseneau
patent: 5225682 (1993-07-01), Britton, Jr. et al.
patent: 5276615 (1994-01-01), Tournier et al.
patent: 5304808 (1994-04-01), Odell
patent: 5349193 (1994-09-01), Mott et al.
patent: 5349195 (1994-09-01), Dumont
patent: 5393982 (1995-02-01), Mott et al.
patent: 5430406 (1995-07-01), Kolodziejczyk
patent: 5684850 (1997-11-01), Warburton et al.
patent: 5774522 (1998-06-01), Warburton
patent: 5808306 (1998-09-01), Skillicorn et al.
patent: 5866907 (1999-02-01), Drukier et al.
patent: 5873054 (1999-02-01), Warburton et al.
patent: 6160259 (2000-12-01), Petrillo et al.
patent: 6177675 (2001-01-01), Gagnon et al.
patent: 6215122 (2001-04-01), Clifford et al.
patent: 6369393 (2002-04-01), Jordanov
patent: 6426993 (2002-07-01), Satoh
patent: 6470285 (2002-10-01), Atwell
patent: 6522984 (2003-02-01), Jordanov
patent: 6525322 (2003-02-01), Wong et al.
patent: 6525323 (2003-02-01), Vesel et al.
patent: 6576907 (2003-06-01), Klein et al.
patent: 6590957 (2003-07-01), Warburton et al.
patent: 6901337 (2005-05-01), Tanaka et al.
patent: 6936822 (2005-08-01), Wong et al.
patent: 2002/0060606 (2002-05-01), Andre
patent: 2004/0158440 (2004-08-01), Warburton et al.
patent: 2004/0206909 (2004-10-01), Izumi et al.
patent: 2006/0015290 (2006-01-01), Warburton et al.
patent: 2006/0120508 (2006-06-01), Chen et al.
patent: 2006/0151707 (2006-07-01), Wellnitz et al.
patent: 2006/0180767 (2006-08-01), Ramsden
patent: 2006/0276706 (2006-12-01), Klein et al.
patent: 2008/0172206 (2008-07-01), Mott
patent: 2009/0032715 (2009-02-01), Mott
patent: 2009/0033913 (2009-02-01), Mott
patent: 2009/0034682 (2009-02-01), Mott
patent: 2009/0037126 (2009-02-01), Mott
Srinivasan, R., “Simulation of CFAR detection algorithms for arbitrary clutter distributions”, IEE Proc.-Radar, Sonar Navig., vol. 147, No. 1, Feb. 2000.
Newbury, Dale E., X-ray Mapping in the Spectrum Image Mode at Output Count Rates above 100 kHz with the Silicon Drift Detector (SDD), Microsc Microanal 12 (Supp 2), 2006, 2 pp.
Guo, Weijun et al., A study of the real-time deconvolution of digitized waveforms with pulse pile up for digital radiation spectroscopy, Nuclear Instruments and Methods in Physics Research A 544 (2005) pp. 668-678.

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