Hostname: page-component-7b7567c8c-kwt9d Total loading time: 0 Render date: 2026-11-14T22:06:44.472Z Has data issue: false hasContentIssue false
  • English
  • Français

Amorphous Silicon Sensor Arrays for Radiation Imaging

Published online by Cambridge University Press:  25 February 2011

R. A. Street,
S. Nelson,
L. Antonuk and
V. Perez Mendez
R. A. Street
Affiliation:
Xerox Palo Alto Research Center, Palo Alto, CA 94304
S. Nelson
Affiliation:
Xerox Palo Alto Research Center, Palo Alto, CA 94304
L. Antonuk
Affiliation:
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI 48109
V. Perez Mendez
Affiliation:
Lawrence Berkeley Laboratory, Berkeley, CA 94720.
Get access

Abstract

Large two-dimensional a-Si:H imaging arrays have applications in imaging of X-ray, gamma-ray and charged particle fluxes. Radiation imaging using a-Si:H p i n sensors together with a phosphor to transform the radiation into visible light is described, and some examples of images are shown. These arrays are very efficient in imaging large area diffuse sources, and the a-Si:H sensors have little radiation damage. The main limitation to the sensitivity of the array is the leakage current of the sensors, which is a source of noise and limits the integration time of the arrays. The contributions to the leakage current from bulk thermal generation and contact injection are discussed

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 192: Symposium O – Amorphous Silicon Technology - 1990 , 1990, 441
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

Kaplan, S. N., Fujieda, I., Perez Mendez, V., Qureshi, S., Ward, W. and Street, R. A. Nucl. Instr. and Meth., A273, 611 (1988).Google Scholar
Knoll, G. F., Radiation Detection and Measurement, (Wiley Press, 1979).Google Scholar
Curry, T. S., Dowdey, J. E. and Murry, R. C., Christensen’s Introduction to the Physics of Diagnostic Radiology, (Lea and Feibiger, 1984) p111.Google Scholar
4. Perez Mendez, V., Cho, G., Fujieda, I., Kaplan, S. N., Qureshi, S. and Street, R. A. MRS Symp. Proc. 149, 621 (1989), and references therein.Google Scholar
5. French, I. E., Snell, A. J., LeComber, P. G. and Stephen, J. H., Appl. Phys. A31, 19 (1983).Google Scholar
6. Thompson, M. J., MRS Symp. Proc., 70, 613 (1986).Google Scholar
7. Antonuk, L. E., Yorkston, J., Boudry, J., Longo, M. J., Jiminez, J. and Street, R. A., Proc. IEEE Nucl. Sci. Symp. (1990), in press.Google Scholar
8. Cho, G., Drewery, J. S., Fujieda, I., Kaplan, S. N., Perez Mendez, V., Qureshi, S. and Street, R. A., MRS Symposium, these proceedings.Google Scholar
9. Antonuk, L. E. et al., submitted to Medical Physics.Google Scholar
10. Street, R. A., to be published.Google Scholar
11. Qureshi, S., Perez Mendez, V, Kaplan, S. N., Fujieda, I., Cho, G. and Street, R. A., MRS Symp. Proc, 149,649.Google Scholar