Analysis of the kinestatic charge detection system as a high detective quantum efficiency electronic portal imaging device

Medical Physics

Volumn 33, Issue 9, 2006, Pages 3557-3567

  Samant, Sanjiv S ^a,b   Gopal, Arun ^b  

^a UNIVERSITY OF FLORIDA   (United States)

^b UNIVERSITY OF TENNESSEE HEALTH SCIENCE CENTER   (United States)

Author keywords

Detective quantum efficiency (DQE); Electronic portal imaging device (EPID); Ion chamber; Kinestatic charge detection (KCD); Megavoltage

Indexed keywords

BIOMEDICAL SIGNAL PROCESSING; DAMAGE DETECTION; DIGITAL DEVICES; EFFICIENCY; ELECTRIC FIELDS; IMAGE QUALITY; IMAGE RESOLUTION; IMAGING SYSTEMS; INERT GASES; IONIZATION CHAMBERS; LIGHT EMISSION; MAMMOGRAPHY; MONTE CARLO METHODS; PHOSPHORS; POSITIVE IONS; RADIATION DAMAGE; SCANNING; SIGNAL TO NOISE RATIO; VELOCITY; VIDEO CAMERAS;

ALTERNATIVE TECHNOLOGIES; ANTHROPOMORPHIC PHANTOMS; CHARGE DETECTION; DETECTIVE QUANTUM EFFICIENCY; ELECTRONIC PORTAL IMAGING DEVICES; EXTERNAL ELECTRIC FIELD; MEGAVOLTAGE; TEMPORAL INTEGRATION;

QUANTUM EFFICIENCY;

CATION; INERT GAS; PHOSPHORUS; XENON;

ARTICLE; CAMERA; COMPTON EFFECT; DIGITAL IMAGING; ELECTRIC FIELD; ELECTRICITY; ELECTRODE; ELECTRON; ELECTRONICS; FILM; IMAGE QUALITY; IMAGING SYSTEM; IONIZATION CHAMBER; LIGHT SCATTERING; MEGAVOLTAGE RADIOTHERAPY; MONTE CARLO METHOD; NOISE; POWER SPECTRUM; PRIORITY JOURNAL; RADIATION DOSE; RADIATION INJURY; SIGNAL NOISE RATIO; VELOCITY; X RAY;

EID: 33748288352     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.2241991     Document Type: Article

References (48)

1. A. L. Boyer, L. Antonuk, A. Fenster, H. M. van Meertens, P. Munro, L. E. Reinstein, and J. Wong, "A review of electronic portal imaging devices," Med. Phys. 19, 1-16 (1992).
2. M. G. Herman, R. A. Abrams, and R. R. Mayer, "Clinical use of on-line portal imaging for daily patient treatment verification," Int. J. Radiat. Oncol., Biol., Phys. 28, 1017-1023 (1994).
3. L. Antonuk, "Electronic portal imaging devices: A review and historical perspective of contemporary technologies and research," Phys. Med. Biol. 47, R31-R65 (2002).
4. B. J. M. Heijmen, K. L. Pasma, and M. Kroonwijk, "Portal dose measurement in radiotherapy using an electronic portal imaging device," Phys. Med. Biol. 40, 1943-1955 (1995).
5. P. Munro, "Megavoltage radiotherapy for treatment verification," in The Modern Technology of Radiation Oncology - A Compendium for Medical Physicists and Radiation Oncologists, edited by J. van Dyk (Medical Physics, Madison, WI, 1999), Chap. 13.
6. M. van Herk and H. Marteens, "A digital imaging system for portal verification," Proceedings of the 9th International Conference on the Use of Computers in Radiation Therapy (Elsevier, North Holland, Amsterdam, 1987), pp. 371-374.
7. M. van Herk and H. Marteens, "A matrix ionization chamber imaging device for on-line patient set-up verification during radiotherapy," Radiother. Oncol. 11, 369-378 (1988).
8. H. Meertens, H. van Herk, J. Bijhold, and H. Bartelink, "First clinical experience with a newly developed electronic portal imaging device," Int. J. Radiat. Oncol., Biol., Phys. 18, 1173-1181 (1990).
9. R. A. Street, S. Nelson, L. E. Antonuk, and P. Mendez, "Amorphous silicon sensor arrays for radiation imaging," Mater. Res. Soc. Symp. Proc. 192, 441-452 (1990).
10. 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).
11. L. E. Antonuk, J. Yorkston, W. Huang, H. Sandler, J. H. Siewerdsen, and Y. el-Mohri, "Megavoltage imaging with a large-area, flat-panel, amorphous silicon imager," Int. J. Radiat. Oncol., Biol., Phys. 36, 661-672 (1996).
12. D. J. Drake, D. A. Jaffray, and J. Wong, "A prototype amorphous silicon array based radiotherapy portal imager," Proc. SPIE 3032, 32-41 (1997).
13. J. R. D. Earnhart and E. L. Chaney, "Modulation transfer function for a large area amorphous silicon image receptor," Phys. Med. Biol. 42, 2531-2540 (1997).
14. P. Munro and D. C. Bouius, "X-ray quantum limited portal imaging using amorphous silicon flat-panel arrays," Med. Phys. 25, 689-702 (1998).
15. Y. El-Mohri, K-W. Jee, L. E. Antonuk, M. Maolinbay, and Q. Zhao, "Determination of the detective quantum efficiency of a prototype mega-voltage indirect detection, active matrix flat-panel imager," Med. Phys. 28, 2538-2550 (2001).
16. T. Falco, H. Wang, and B. G. Fallone, "Preliminary study of a metal/a -Se based portal detector," Med. Phys. 25, 814-823 (1998).
17. M. Lachaine and B. G. Fallone, "Monte Carlo detective quantum efficiency and scatter studiesof a metal/a-Se portal detector," Med. Phys. 25, 1186-1194 (1998).
18. D. Mah, J. A. Rawlinson, and J. A. Rowlands, "Sensitivity of amorphous selenium to x-rays from 40 kVp to 18 MV: Measurements and implications for portal imaging," Med. Phys. 25, 444-456 (1998).
19. D. Mah, J. A. Rawlinson, and J. A. Rowlands, "Detective quantum efficiency of an amorphous selenium detector to megavoltage radiation," Phys. Med. Biol. 44, 1369-1384 (1999).
20. G. Pang, D. L. Lee, and J. A. Rowlands, "Investigation of a direct conversion flat-panel imager for portal imaging," Med. Phys. 28, 2121-2128 (2001).
21. M. Lachaine, E. Fourkal, and B. G. Fallone, "Detective quantum efficiency of a direct-detection active matrix flat panel imager at megavoltage energies," Med. Phys. 28, 1364-1372 (2001).
22. M. A. Mosleh-Shirazi, W. Swindell, and P. M. Evans, "Optimization of the scintillation detector in a combined 3D megavoltage CT scanner and portal imager," Med. Phys. 25, 1880-1890 (1998).
23. A. Sawant, H. Zeman, S. Samant, G. Lovhoiden, B. Weinberg, and F. DiBianca, "Theoretical analysis and experimental evaluation of a CsI(Tl) based electronic portal imaging system," Med. Phys. 29, 1042-1053 (2002).
24. T. T. Monajemi, S. Steciw, B. G. Fallone, and S. Rathee, "Modeling scintillator-photodiodes as detectors for megavoltage CT," Med. Phys. 31, 1225-1234 (2004).
25. A. Sawant, L. E. Antonuk, Y. El-Mohri, Q. Zhao, Y. Li, Z. Su, Y. Wang, J. Yamamoto, H. Du, I. Cunningham, M. Klugerman, and K. Shah, "Segmented crystalline scintillators: An initial investigation of high quantum efficiency detectors for megavoltage x-ray imaging," Med. Phys. 32, 3067-3083 (2005).
26. O. Buneman, T. E. Cranshaw, and J. A. Harvey, "Design of grid ionization chambers," Can. J. Res., Sect. A 27, 191-206 (1949).
27. F. A. DiBianca and M. B. Barker, "Kinestatic charge detection," Med. Phys. 12, 339-343 (1985).
28. D. J. Wagenaar, F. A. DiBianca, C. R. Tenney, M. S. C. Reed, and J. E. Vance, "Use of a low-ionization dopant in a kinestatic charge detector: Experimental findings," Med. Phys. 18, 227-235 (1991).
29. S. Devidas, "Electron attachment and gas optimization studies in a KCD for digital radiography," M.S. thesis, University of Tennessee, Memphis, TN, 1994.
30. C. E. Metz and K. Doi, "Transfer function analysis of radiographic imaging systems," Phys. Med. Biol. 24, 1079-1106 (1979).
31. J. W. Coltman, "The specification of imaging properties by response to a sine wave input," J. Opt. Soc. Am. 44, 468-471 (1954).
32. R. T. Droege and M. S. Rzeszotarski, "An MTF method immune to aliasing," Med. Phys. 12, 721-725 (1985).
33. J. C. Dainty and R. Shaw, Image Science (Academic, London, 1974).
34. M. B. Williams, "Noise power spectra of images from digital mammography detectors," Med. Phys. 26, 1279-1293 (1999).
35. J. W. Boag, "General recombination in ionization chambers with spatially non-uniform ionization intensity - Two special cases," Int. J. Radiat. Phys. Chem. 7, 243 (1975).
36. L. B. Loeb, Basic Processes of Gaseous Electronics (Univ. Cal. Press, Berkeley, 1955).
37. C. R. Tenny, "Ionic recombination in a kinestatic charge detector," doctoral thesis, University of North Carolina - Chapel Hill, 1988.
38. H. Fujita, D. Tsai, T. Itoh, K. Doi, J. Morishita, K. Ueda, and A. Ohtsuka, "A simple method for determining the modulation transfer function in digital radiography," IEEE Trans. Med. Imaging 11, 34-39 (1992).
39. D. A. Jaffray, J. J. Battista, A. Fenster, and P. Munro, "X-ray sources of medical linear accelerators: Focal and extra-focal radiation," Med. Phys. 20, 1417-1427 (1993).
40. J. T. Dobbins, D. L. Ergun, L. Rutz, D. A. Hinshaw, H. Blume, and D. C. Clark, "DQE(f) of four generations of computed radiography acquisition devices," Med. Phys. 22, 1581-1593 (1995).
41. D. W. O. Rogers, "Fluence to dose equivalent conversion factors calculated with egs for electrons from 100 Kev to 20 Gev and photons from 11 Kev to 20 Gev," Health Phys. 46, 891-914 (1984).
42. J. P. Bisonnette, D. A. Jaffray, A. Fenster, and P. Munro, "Optimal radiographic magnification for portal imaging," Med. Phys. 21, 1435-1445 (1994).
43. P. Munro and D. C. Bouius, "X-Ray quantum limited portal imaging using amorphous silicon flat-panel arrays," Med. Phys. 25, 689-702 (1998).
44. J. A. Halbleib, R. P. Kensek, T. A. Mehlhorn, G. D. Valdez, S. M. Seltzer, and M. J. Berger, "ITS Version 3.0: Integrated tiger series for coupled photon/electron," SANDIA91-1634 (Sandia National Laboratories, Albuquerque, NM, 1992).
45. R. Mohan, C. Chui, and L. Lidofsky, "Energy and angular distribution of photons from medical linear accelerators," Med. Phys. 12, 592-597 (1985).
46. I. Kawrakow and D. W. O. Rogers, "The EGSnrc code system: Monte Carlo simulation of electron and photon transport," NRCC Report No. PIRS-701 (2000).
47. S. S. Kusbad, T. R. Mackie, M. A. Gehring, D. J. Misisco, B. R. Paliwal, M. P. Mehta, and T. J. Kinsella, "Monte Carlo and convolution dosimetry for stereotactic radiosurgery," Int. J. Radiat. Oncol., Biol., Phys. 19, 1027-1035 (1990).
48. T. Falco and B. G. Fallone, "Characteristics of metal-plate/film detectors at therapy energies. I. modulation transfer function," Med. Phys. 25, 2455-2462 (1998).