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

@article{Metzler2001AnalyticDO,
  title={Analytic determination of the pinhole collimator's point-spread function and RMS resolution with penetration},
  author={Scott D. Metzler and James E. Bowsher and Kim L. Greer and Ronald J. Jaszczak},
  journal={IEEE Transactions on Medical Imaging},
  year={2001},
  volume={21},
  pages={878-887}
}
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 analytic 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… CONTINUE READING

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