Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system
Reexamination Certificate
2008-03-27
2011-11-22
Porta, David (Department: 2884)
Radiant energy
Invisible radiant energy responsive electric signalling
Semiconductor system
C250S336100
Reexamination Certificate
active
08063378
ABSTRACT:
The preferred embodiments are directed to a high-energy detector that is electrically shielded using an anode, a cathode, and a conducting shield to substantially reduce or eliminate electrically unshielded area. The anode and the cathode are disposed at opposite ends of the detector and the conducting shield substantially surrounds at least a portion of the longitudinal surface of the detector. The conducting shield extends longitudinally to the anode end of the detector and substantially surrounds at least a portion of the detector. Signals read from one or more of the anode, cathode, and conducting shield can be used to determine the number of electrons that are liberated as a result of high-energy particles impinge on the detector. A correction technique can be implemented to correct for liberated electron that become trapped to improve the energy resolution of the high-energy detectors disclosed herein.
REFERENCES:
patent: 5530249 (1996-06-01), Luke
patent: 6175120 (2001-01-01), McGregor et al.
patent: 6528797 (2003-03-01), Benke et al.
patent: 6781132 (2004-08-01), McGregor
patent: 1264723 (1990-09-01), None
NASA Swift Mission webpage, National Aeronautics and Space Administration, Jun. 26, 2007 <URL: http://www.nasa.gov/mission—pages/swift/bursts/double—supernova.html>.
P.N. Luke, “Single-Polarity Charge Sensing in Ionization Detectors Using Coplanar Electrodes,” Appl. Phys. Lett. 65(22), pp. 2884-2886, 1994.
K. Parnham and Cs. Szeles, K.G. Lynn and R. Tjossem, “Performance Improvement of CdZnTe Detectors Using Modified Two-Terminal Electrode Geometry,” accepted for publication in Hard X-Ray, Gamma-Ray and Neutron Detector Physics, Proceedings of SPIE, 1999.
Ritec, Inc., Riga, Latvia, Feb. 17, 2005 <URL: http://www.ritec.lv/Html/pub.html>.
“Theory of the Hemispherical Detector Operation,” Feb. 17, 2005 <URL: http://www.ritec.lv/Html/pubthe.html>.
V. Ivanov, A. Loutchanski, V. Garbusin, P. Dorogov RITEC Ltd., R. Arlt IAEA, “New Possibilities of Room Temperature Semiconductor Detectors with Using of a Modern Pulse Processing Methods,” Feb. 17, 2005 <URL: http://www.ritec.lv/Html/pubsum.html>.
V.I. Ivanov, V. Garbusin, P.G. Dorogov, A.E. Loutchanski, V.V. Kondrahov Baltic Scientific Instruments, RITEC Ltd., “Spectrometric Characteristic improvement of CdTe Detectors,” Feb. 17, 2005 <URL: http://www.ritec.lv/Html/pubabs.html>.
C. Szeles, D. Bale, J. Grosholz, Jr., G.L. Smith, M. Blostein, and J. Eger, “Fabrication of High Performance CdZnTe Quasi-Hemispherical Gamma-Ray CAPture™ Plus Detectors,” Hard X-Ray and Gamma-Ray Detector Physics VIII, edited by Larry A. Franks, Arnold Burger, and Ralph B. James, Proceedings of SPIE vol. 6319, p. 191 (SPIE, Bellingham, WA, 2006).
G. Montémont, M. Argues, L. Verger, and J. Rustique, “A Capacitive Frisch Grid Structure for CdZnTe Detectors,”IEEE Trans. Nucl. Sci., vol. 48(3), pp. 278-281, 2001.
H.H. Barrett, J.D. Eskin, and H.B. Barber, “Charge Transport in Arrays of Semiconductor Gamma-Ray Detectors,”Physical Review Letters, The American Physical Society, 75(1), p. 156, 1995.
A. Kargar, A.M. Jones, W.J. McNeil, M.J. Harrison, D.S. McGregor, “CdZnTe Frisch Collar Detectors for γ-Ray Spectroscopy,”Nuclear Instruments and Methods in Physics Research, A558, pp. 487-503 (2006).
A.E. Bolotnikov, G.C. Camarda, G.A. Carini, M. Fiederle, L. Li, D.S. McGregor, W. McNeil, G.W. Wright, R.B. James, “Performance Characteristics of Frisch-Ring CdZnTe Detectors,”IEEE Trans. Nucl. Sci., vol. 53 (2), pp. 607-614, 2006.
O. Bunemann, T.E. Cranshaw, and J.A. Harvey, “Design of Grid Ionization Chambers,”Can. J. Res., A27, pp. 191-247 (1949).
F. Zhang, Z. He, D. Xu, G.F. Knoll, D.K. Wehe, and J.E. Berry, “Improved Resolution for 3-D Position Sensitive CdZnTe Spectrometers,”IEEE Trans. Nucl. Sci., vol. 51(5), pp. 2427-2431, 2004.
Y. Cui, A.E. Bolotnikov, G.S. Camarda, G.A. Carini, G. DeGeronimo, P. O'Connor, R.B. James, A. Kargar, M.J. Harrison, and D.S. McGregor, “Readout System for Arrays of Frisch-Ring CdZnTe Detectors,”IEEE Transactions on Nuclear Science, in press, pp. 3675-3679, 2007.
A.E. Bolotnikov, G.S. Camarda, G.A. Carini, G.W. Wright, D.S. McGregor, W. McNeil, R.B. James, “New Results from Performance Studies of Frisch-Grid CdZnTe Detectors,” SPIE, 5540, pp. 33-45, 2004.
Advanced Polymers, Inc., 29 Northwestern Drive, Salem, NH 03079, 2007 <URL: http://www.advpoly.com/Products/ShrinkTubing/Default.aspx>.
A.E. Bolotnikov, G.S. Camarda, G.A. Carini, M. Fiederle, L. Li, G.W. Wright, and R.B. James, “Performance Studies of CdZnTe Detector by Using a Pulse Shape Analysis,” in Proceedings of SPIE Hard X-Ray and Gamma-Ray Detector Physics VII, edited by R.B. James, L.A. Franks, and A. Burger (SPIE, Bellingham, WA, 2005), 58200K-1-59200K-12.
B.H. Parker, C.M. Stahle, D. Roth, S. Babu, J. Tueller, “The Effect of Twin Boundaries on the Spectroscopic Performance of CdZnTe Detectors,” in Hard X-Ray and Gamma Ray Detector Physics III, R. James ed., Proc. SPIE, vol. 4507, pp. 68-78, 2001.
S.A. Soldner, A.J. Narvett, D.E. Covalt, and C. Szeles, “Characterization of the Charge Transport Uniformity of CdZnTe Crystals for Large-Volume Nuclear Detector Applications,”IEEE Trans. Nucl. Sci., vol. 51(5), pp. 2443-2447, 2001.
A.E. Bolotnikov, G.S. Camarda, G.A. Carini, Y. Cui, L. Li, R.B. James, “Cumulative Effects of Te Precipitates in CdZnTe Radiation Detectors,”Nucl. Instruments and Methods in Physics Research, A571, pp. 687-698, 2007.
W. Shockley, “Currents to Conductors Induced by a Moving Point Charge,”J. Appl. Phys.9, pp. 635-636, 1938.
A. Bolotnikov, A. Bolozdynya, R. DeVito, J. Richards, “Dual-Anode High-Pressure Xenon Cylindrical Ionization Chamber,”IEEE Trans. Nucl. Sci., vol. 51(3), pp. 1006-1010, 2004.
Bolotnikov Aleksey E.
Camarda Giuseppe
Cui Yonggang
James Ralph B.
Brookhaven Science Associates LLC
Igyarto Carolyn
Porta David
Price Dorene M.
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