X-ray imaging with amorphous selenium: Theoretical feasibility of the liquid crystal light valve for radiography

Medical Physics

Volumn 24, Issue 8, 1997, Pages 1279-1291

  Rieppo, Pia Krista ^a   Rowlands, J A ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

Digital imaging; Image intensifier; Light valve; Photoconductor; Radiographic system; Selenium; Spatial light modulator

Indexed keywords

CHARGE COUPLED DEVICES; CRYSTAL STRUCTURE; IMAGE INTENSIFIERS (SOLID STATE); LIGHT MODULATION; LIGHT MODULATORS; NEMATIC LIQUID CRYSTALS; PHOTOCONDUCTING MATERIALS; SELENIUM;

DIGITAL IMAGING; EXPOSURE CHARACTERISTICS; LIGHT VALVES; LIQUID CRYSTAL LIGHT VALVE; RADIOGRAPHIC SYSTEMS; SPATIAL LIGHT MODULATORS; TWISTED NEMATIC LIQUID CRYSTAL CELLS; X-RAY IMAGE INTENSIFIERS;

X RAY RADIOGRAPHY;

SELENIUM;

ARTICLE; IMAGE INTENSIFIER; IMAGING SYSTEM; LIQUID CRYSTAL; OPTICAL RESOLUTION; PRIORITY JOURNAL; RADIOGRAPHY; X RAY;

EID: 0030767980     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.598150     Document Type: Article

References (11)

1. A. D. A. Maidment, M. J. Yaffe, D. B. Plewes, G. E. Mawdsley, I. C. Soutar, and B. G. Starkoski, "Imaging performance of a prototype scanned-slot digital mammography system," in Physics of Medical Imaging, edited by R. Shaw, Proc. SPIE 1896, 93-103 (1993).
2. A. Karellas, L. J. Harris, H. Liu, M. A. Davis, and C. J. D'Orsi, "Charge coupled device detector: Performance considerations and potential for small-field mammographic imaging applications," Med. Phys. 19, 1195-1199 (1992).
3. L. E. Antonuk, J. Boudry, W. Huang, D. L. McShan, E. J. Morton, J. Yorkston, M. J. Longo, and R. A. Street, "Demonstration of megavoltage and diagnostic x-ray imaging with hydrogenated amorphous silicon arrays," Med. Phys. 19, 1455-1466 (1992).
4. S. Hejazi and D. P. Trauernicht, "System considerations in CCD-based x-ray imaging for digital chest radiography and digital mammography," Med. Phys. 24, 287-298 (1997).
5. A. Macovski, Medical Imaging Systems (Prentice-Hall, Toronto, 1983), pp. 81-82.
6. J. Grinberg, A. Jacobson, W. Bleha, L. Miller, L. Fraas, D. Boswell, and G. Myer, "A new real time noncoherent to coherent light image converter - The hybrid field effect liquid crystal light valve," Opt. Eng. (Bellingham) 14, 217-225 (1975).
7. D. Armitage, J. I. Thackara, and W. D. Eades, "Photoaddressed liquid crystal spatial light modulators," Appl. Opt. 28, 4763-4771 (1989).
8. J.-P. Huignard, S. LeBerre, C. Mayeux, and F. Micheron, "Liquid crystal image converter device," U. S. Patent 4 368 386, Jan. 11, 1983.
9. P. Rieppo, B. Bahadur, and J. A. Rowlands, "Amorphous selenium liquid crystal light valve for x-ray imaging," in Physics of Medical Imaging, edited by R. L. Van Metter and J. Beutel, Proc. SPIE 2432, 228 (1995).
10. J. W. Boag, "Xeroradiography," Phys. Med. Biol. 18, 3-37 (1973).
11. U. Neitzel, I. Maack, and S. Guenther-Kohlfahl, "Image quality of a digital chest radiography system based on a selenium detector," Med. Phys. 21, 509-516 (1994).