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Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration

Publication ,  Journal Article
Metzler, SD; Bowsher, JE; Greer, KL; Jaszczak, RJ
Published in: IEEE Nuclear Science Symposium and Medical Imaging Conference
December 1, 2001

Pinhole collimators are widely used to image small organs and animals. The pinhole response function (PRF) of knife-edge pinhole collimators has been estimated previously using geometric constructions without considering penetration and using "roll-off" models that employ an exponential model for the flux. An exact expression for the PRF on the imaging plane that includes the effect of aperture penetration is derived in this paper by calculating the flux for photons passing through the aperture and those passing through the attenuating material. The PRF is then used to estimate the angular-dependent root-mean-square resolution in the directions parallel and perpendicular to the tilt of the point source. The formulas are then compared with experimental data.

Duke Scholars

Published In

IEEE Nuclear Science Symposium and Medical Imaging Conference

Publication Date

December 1, 2001

Volume

2

Start / End Page

1175 / 1179
 

Citation

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ICMJE
MLA
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Metzler, S. D., Bowsher, J. E., Greer, K. L., & Jaszczak, R. J. (2001). Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration. IEEE Nuclear Science Symposium and Medical Imaging Conference, 2, 1175–1179.
Metzler, S. D., J. E. Bowsher, K. L. Greer, and R. J. Jaszczak. “Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration.” IEEE Nuclear Science Symposium and Medical Imaging Conference 2 (December 1, 2001): 1175–79.
Metzler SD, Bowsher JE, Greer KL, Jaszczak RJ. Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration. IEEE Nuclear Science Symposium and Medical Imaging Conference. 2001 Dec 1;2:1175–9.
Metzler, S. D., et al. “Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration.” IEEE Nuclear Science Symposium and Medical Imaging Conference, vol. 2, Dec. 2001, pp. 1175–79.
Metzler SD, Bowsher JE, Greer KL, Jaszczak RJ. Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration. IEEE Nuclear Science Symposium and Medical Imaging Conference. 2001 Dec 1;2:1175–1179.

Published In

IEEE Nuclear Science Symposium and Medical Imaging Conference

Publication Date

December 1, 2001

Volume

2

Start / End Page

1175 / 1179