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Modular 64×64 CdZnTe Arrays With Multiplexer Readout for High-Resolution Nuclear Medicine Imaging

  • J. M. Woolfenden (a1), H. B. Barber (a1) (a2), H. H. Barrett (a1) (a2), E. L. Dereniak (a2), J. D. Eskin (a2), D. G. Marks (a2), K. J. Matherson (a2), E. T. Young (a3) and F. L. Augustine (a4)...

Abstract

We are developing modular arrays of CdZnTe radiation detectors for high-resolution nuclear medicine imaging. Each detector is delineated into a 64×64 array of pixels; the pixel pitch is 380 ptm. Each pixel is connected to a corresponding pad on a multiplexer readout circuit. The imaging system is controlled by a personal computer. We obtained images of standard nuclear medicine phantoms in which the spatial resolution of approximately 1.5 mm was limited by the collimator that was used. Significant improvements in spatial resolution should be possible with different collimator designs. These results are promising for high-resolution nuclear medicine imaging.

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1. Jaszczak, R. J. and Tsui, B. M. W. in Principles of Nuclear Medicine, 2nd ed., edited by Wagner, H. N. Jr.,, Szabo, Z., and Buchanan, J. W. (Saunders, Philadelphia, 1995), p. 319.
2. Barrett, H. H., Eskin, J. D., Barber, H. B.. Phys. Rev. Lett. 75, 156 (1995).
3. Barber, H. B., Augustine, F. L., Barrett, H. H., Dereniak, E. L., Matherson, K. J., Meyers, T. J., Perry, D. L., Venzon, J. E., Woolfenden, J. M., Young, E. T.. Nucl. Instr. and Meth. A 353, 361 (1994).
4. Barber, H. B., Augustine, F. L., Barrett, H. H., Dereniak, E. L., Eskin, J. D., Marks, D. G., Matherson, K. J., Venzon, J. E., Woolfenden, J. M., and Young, E. T. in 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference Record, edited by Moonier, P. A. (IEEE Service Center, Piscataway, NJ, 1995) pp. 113117.
5. Marks, D. G., Barber, H. B., Barrett, H. H., Dereniak, E. L., Eskin, J. D., Matherson, K. J., Woolfenden, J. M., Young, E. T., Augustine, F. L., Hamilton, W. J., Venzon, J. E., Apotovsky, B. A., F. P. Doty. IEEE Trans. Nucl. Sci. 43, 1253 (1996).
6. Rogulski, M. M., Barber, H. B., Barrett, H. H., Shoemaker, R. L., Woolfenden, J. M.. IEEE Trans. Nucl. Sci. 40, 1123 (1993).
7. Augustine, F. L., Nucl. Instr. and Meth. A 353, 201 (1994).
8. Matherson, K. J., Barber, H. B., Barrett, H. H., Eskin, J. D., Dereniak, E. L., Marks, D. G., Woolfenden, J. M., Young, E. T., Augustine, F. L. in 1997 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (IEEE Service Center, Piscataway, NJ), in press.
9. Barber, H. B., Dereniak, E. L., Eskin, J. D., Hilton, N. R., Marks, D. G., Matherson, K. J., Woolfenden, J. M., and Young, E. T. in 1997 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (IEEE Service Center, Piscataway, NJ), in press.
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  • ISSN: -
  • EISSN: 1946-4274
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