X-ray photoconductive compositions for x-ray radiography

Details X-ray photoconductive compositions for x-ray radiography X-ray photoconductive compositions for x-ray radiography

1994-08-25

1996-09-17

Ryan, Patrick J.

Stock material or miscellaneous articles

Composite

Of inorganic material

2504842, 378 28, B32B 900

Patent

active

055567169

ABSTRACT:
New x-ray photoconductive compositions are disclosed which are certain composites containing (1) inorganic clusters of VB-VIB semiconductors, VB-VIIB semiconductors, IIB-VIB semiconductos, IIB-VB semiconductors, IIIB-VB semiconductors, IIIB-VIB semiconductors, IB-VIB semiconductors and/or IVB-VIIB semiconductors and (2) polymers which are essentially non-carrier-transporting in the absence of x-rays. Also disclosed is an x-ray radiograpy apparatus which employs an image receptor which is a composite of certain inorganic clusters and polymers. A method is disclosed for enhancing the x-ray absorbing efficiency of a polymer which is essentially non-carrier transporting in the absence of x-rays and the x-ray photoconductivity of said polymer by doping the polymer with an effective amount of clusters having a size within the range of from about 0.001 .mu.m to 10 .mu.m.

REFERENCES:
patent: 2859352 (1958-11-01), Sugarman, Jr.
patent: 2862815 (1958-12-01), Sugarman, Jr. et al.
patent: 3772028 (1973-11-01), Fico
patent: 4097277 (1978-06-01), Takasu
patent: 4204118 (1980-05-01), Sheldon
patent: 4260887 (1981-04-01), Dannert et al.
patent: 4738798 (1988-04-01), Mahler
patent: 5025163 (1991-06-01), Jeffers
patent: 5127038 (1992-06-01), Jeromin et al.
patent: 5166524 (1992-11-01), Lee et al.
patent: 5168160 (1992-12-01), Jeromin et al.
patent: 5184018 (1993-02-01), Conrads et al.
patent: 5238607 (1993-08-01), Herron et al.
patent: 5273910 (1993-12-01), Tran et al.
patent: 5291036 (1994-03-01), Tran et al.
patent: 5340661 (1994-08-01), Van Havenberg
Rowlands, J. A. et al, "X-Ray imaging using amorphous selenium: A photoinduced discharge readout method for digital mammography", Med. Phys., 18, p. 421-431 (1991).
Hillen, W. et al in Medical Imaging II, R. H. Schneider et al (Ed.), "A selenium-based detector system for digital slot-radiography",`SPIE,`914, p. 253-261 (1988).
Zhao, W. et al, "Digital Radiography Using Self-Scanned Readout of Amorphous Selenium", Proceedings of the Electrochemical Society Mtg., 92-2, p. 791, Toronto, Canada Oct. 11-16, 1992.
Burr, A. F., "Introduction to X-Ray Cross Sections", CRC Handbook of Chemistry and Physics, 74th ed., D. R. Lide (Ed.), CRC Press, Boca Raton, FL pp. 10-287-10-289 (1993-94).
Stolka, M. et al, "Trap-free charge transport in polymers, with tunable mobilities", Synthetic Metals, 54, 417-425 (1993).
Borsenberger, P. M. et al, "Effects of the Dipole Moment on Charge Transport in Disordered Molecular Solids", J. Phys. Chem.,`97, 4815-4819 (1993).
Luhta, R. et al, "A Large Area X-Ray Sensitive Vidicon", Proceedings of the Electrochemical Society Mtg., 92-2, p. 790, Toronto, Canada Oct. 11-16, 1992.
Greskovich, C. et al, "Ceramic Scintillators for Advanced Medical X-Ray Detectors", Proceedings of the Electrochemical Society Mtg., 92-2, p. 793, Toronto, Canada Oct. 11-16, 1992.
Bueno, C., "New Luminescent Glasses and Fiber Optic Scintillators for use in X-ray Imaging", Proceedings of the Electrochemical Society Mtg., 92-2, p. 794, Toronto, Canada Oct. 11-16, 1992.
Kuo, Y., "A Review of Thin Film Technologies in Preparing Thin Film Transistors for Liquid Crystal Displays", Proceedings of the Electrochemical Society Mtg., 92-2, p. 786, Toronto, Canada Oct. 11-16, 1992.
Wang, Y. et al, "Nanometer-Sized Semiconductor Clusters: Materials Synthesis, Quantum Size Effects, and Photophysical Properties", J. Phys. Chem., 95, 525-532 (1991).
Pai, D. M. et al, "Hole transport in solid solutions of substituted triarylmethanes in bisphenol-A-polycarbonate", Phil. Mag. B, 48(6), 505-522 (1983).
Calabrese, J. et al, "Preparation and Characterization of Layered Lead Halide Compounds", J. Am. Chem. Soc.,`113, 2328-2330 (1991).
Rowlands, J. A. et al, "Digital Radiology Using Amphorous Selenium", Proceedings of the Electrochemical Society Mtg., 92-2, p. 788, Toronto, Canada Oct. 11-16, 1992.
Hunter, D. M. et al, "Digital Radiography: A Photoinduced Discharge Readout Method for Amphorous Selenium Plates", Proceedings of the Electrochemical Society Mtg., 92-2, p. 789, Toronto, Canada Oct. 11-16, 1992.

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