Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1994-05-10
1997-02-04
Berman, Jack I.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250367, G01T 120
Patent
active
056001444
ABSTRACT:
A novel detector element structure and method for its use is provided. In a preferred embodiment, one or more inorganic scintillating crystals are coupled through wavelength shifting optical fibers (WLSFs) to position sensitive photomultipliers (PS-PMTs). The superior detector configuration in accordance with this invention is designed for an array of applications in high spatial resolution gamma ray sensing with particular application to SPECT, PET and PVI imaging systems. The design provides better position resolution than prior art devices at a lower total cost. By employing wavelength shifting fibers (WLSFs), the sensor configuration of this invention can operate with a significant reduction in the number of photomultipliers and electronics channels, while potentially improving the resolution of the system by allowing three dimensional reconstruction of energy deposition positions.
REFERENCES:
patent: 4743764 (1988-05-01), Casey et al.
patent: 4831263 (1989-05-01), Yamashita
patent: 4939464 (1990-07-01), Hammer
patent: 5122667 (1992-06-01), Thompson
patent: 5227634 (1994-07-01), Ryuo et al.
patent: 5241181 (1993-08-01), Mertens et al.
patent: 5391878 (1995-02-01), Petroff
"Decay time measurements on pure CsI Scintillators prepared by different methods", S. Keszthelyn-Landon, et al. Nuclear instruments and methods in physics research A303 (1991) pp. 374-380.
"CsI-Based Scintillators in y-Detection Systems", A. V. Gektin et al., Nuclear Instruments and Methods in Physics Research A292 (1990) pp. 591-594.
"A New Scintillation Material: Pure CsI With 10 ns Decay Time", Shinzou Kubota et al., Nuclear Instruments and Method in Physics Research A268 (1988) pp. 275-277.
"Readout Techniques and Radiation damage of Undoped Cesium Iodile", C. L. Woody et al., IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 19909, pp. 492-498.
"A New Type of Luminescence Mechanism in Large Band-Gap Insulators: Proposal for Fast Scintillation Materials", Shinzou Kubota et al, Nuclear Instruments and Methods in Physics Research A289 (1990) pp. 253-260.
"Progress and prospects in the development of new scintillators for future high energy physics experiments", P. Lecoq et al., Nuclear Instruments and Methods in Physics Research A315 (1992) pp. 337-343.
"Light Collection in Scintillation Detector Composites for Neutron Detection", Glenn F. Knoll et al. IEEE Transactions on Nuclear Science, vol. 35, No. 1, Feb. 1988, pp. 872-875.
"Monte Carlo Calculations of the Optical Coupling Between Bismuth Germanate Crystals and Photomultiplier Tubes", Stephen E. Derenzo et al., IEEE Transactions on Nuclear Science, vol. NS-29, No. 1, Feb. 1982, pp. 191-195.
"A Low-Z Pet Detector", C. A. Burnham, et al., IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990, pp. 832-824.
"New Measurements of Scintillating Fibers Coupled to Multianode Photomultipliers", M. Salomon, IEEE Transactions on Nuclear Science, vol. 39, No. 4, 1992, pp. 671-673.
"A 5 Inch Diameter Position-Sensitive Scintillation Counter", Z. He et al., IEEE Transactions on Nuclear Science, vol. 40, No. 4, Aug. 1993, pp. 447-451.
"Embedded Waveshifting Fiber Readout of Long Scintillators", R. Wojcik, et al., IEEE Transactions of Nuclear Science, vol. 40, No. 4, Aug. 1993, pp. 470-475.
"High Pressure Gas Scintillation Drift Chambers with Wave-Shifter Fiber Readout", A. Parsons et al., IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990, pp. 541-546.
"Optimization of the Use of Small Inexpensive Side-Window Photomultiplier Tubes for Scintillator Readout", A. G. Weisenberger et al., Continuous Electron Beam Accelerator Facility.
"Large Area Real-Time System for Screening DNA Libraries", J. S. Gordon et al., IEEE Transactions on Nuclear Science, vol. 35, No. 5, Oct. 1992, pp. 1485-1489.
"Initial Characterization of a Prototype Multi-Crystal Cylindrical Spect System", Wei Chang et al., IEEE Transactions on Nuclear Science, vol. 39, No. 4, 1992, pp. 1084-1087.
"A High-Resolution Spect System Based on a Microchannel-Plate Imager", F. A. Dilmanian et al., IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990, pp. 687-695.
"Two Data Acquisition And Processing Systems For A Compact Gamma-Camera", Z. He et al. IEEE Transactions on Nuclear Science, vol. 40, No. 4, Aug. 1993, pp. 1165-1168.
"The Optimisation of Small CsI(TI) Gamma-ray Detectors", A. J. Bird et al, IEEE Transactions On Nuclear Science, vol. 40, No. 4, Aug. 1993, pp. 395-399.
"Monte Carlo Optimisation of Depth-of-Interaction Resolution in PET Crystals", T. A. DeVol, et al. IEEE Transactions on Nuclear Science, vol. 40, No. 2, Apr. 1993, pp. 170-174.
"A Depth-Encoded PET Detector", P. Bartzakos et al. IEEE Transactions on Nuclear Science, vol. 38, No. 2, Apr. 1991, pp. 732-738.
"An Improved Multicrystal 2-D BGO Detector for PET", J. G. Rogers et al., IEEE Transactions on Nuclear Science, vol. 39, No. 4, 1992, pp. 1063-1068.
"A Positron Camera Detector Design with Cross-Coupled Scintillators and quadrant Sharing Photomultipliers", Wai-Hoi Wong, IEEE Transactions on Nuclear Science, vol. 40, No. 4, Aug. 1993, pp. 962-966.
"Development of a High Resolution PET", T. Yamashita et al., IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990, pp. 594-599.
"A New Generation of SPECT and PET Systems Based on Position Sensitive Photomultipliers", Manbir Singh et al., IEEE Transactions on Nuclear Science, vol. 37, No. 3, Jun. 1990, pp. 1321-1327.
"Imaging Properties of a Positron Tomograph with 280 BGO Crystals", Stephen E. Derenzo et al., IEEE Transactions on Nuclear Science, vol. NS-28, No. 1, Feb. 1981, pp. 81-88.
"High Resolution Positron Emission Tomography with a Prototype Camera Based on Solid State Scintillation Detectors", R. Lecomte et al., IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990, pp. 805-811.
"A Local Coincidence Triggering System for PET Tomographs Composed of Large-Area Position-Sensitive Detectors", D. A. Mankoff et al., IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990, pp. 730-736.
"The Donner 280-Crystal High Resolution Positron Tomograph", Stephen E. Derenzo et al, IEEE Transactions on Nuclear Science, vol. NS-26, No. 2, Apr. 1979, pp. 2790-2793.
"Performance Evaluation of the PC-2048: A New 15-Slice Encoded-Crystal PET Scanner for Neurological Studies", A. C. Evans et al., IEEE Transactions on Medical Imaging, vol. 10, No. 1, Mar. 1991, pp. 90-98.
"A study of undoped CsI crystal", Zong-ying Wei et al., Nuclear Instruments and Methods in Physics Research A326 (1993) pp. 508-512.
"Scintillation characteristics of pure and TI-doped CsI crystals", P. Schotanus et al., IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990, pp. 177-182.
"An Investigation on the Characteristics of Pure CsI Crystals", B. K. Utts et al, IEEE, 1990, pp. 134-138.
"Time-resolved XEOL spectroscopy of new scintillators based on CsI", A. N. Belsky, et al., American Institute of Physics, 1992.
"Cerium Fluoride a Scintillator for High-Rate Applications", D. F. Anderson, Nuclear Instruments and Methods in Physics Research A287 (1990), pp. 606-612.
"Characteristics of the New YA103: Ce Compared with BGO and GSO", S. I. Ziegler et al., IEEE Transactions on Nuclear Science, vol. 40, No. 2, Apr. 1993.
"Cerium-doped Lutetium Oxyorthosilicate: A Fast Efficient New Scintillator", C. L. Melcher et al., IEEE Transactions on Nuclear Science, vol. 39, No. 4, 1992, pp. 502-505.
"A Measurement of the Light Yield of Common Inorganic Scintillators", I. Holl et al., IEEE Transactions on Nuclear Science, vol. 35, No. 1, Feb. 1988, pp. 105-109.
"YA103: Ce-fast-acting scintillators for detection of ionizing radiation", V. G. Baryshevsky et al., Nuclear Instruments and Methods in Physics Research B58 (1991) pp. 291-293.
"Cerium Doped GSO Scintillators and its Application to Position Sensitive Detectors", H. Ishibashi et al., IEEE Transactions on Nuclear Science, vol. 36, No. 1, Feb. 1989, pp. 170-172.
"Stoichiometric Cerium Compounds as Scintillators, part I: CeF3", A. J. Wojtowicz et al., IEEE Transactions on Nuclear Science, vol. 39, No. 4, 1992, pp. 494-5
Berman Jack I.
Hanig Richard
Trustees of Boston University
LandOfFree
Three dimensional imaging detector employing wavelength-shifting does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Three dimensional imaging detector employing wavelength-shifting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three dimensional imaging detector employing wavelength-shifting will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-681599