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. 2024 May 14;69(11):115003. doi: 10.1088/1361-6560/ad40f8

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© 2024 The Author(s). Published on behalf of Institute of Physics and Engineering in Medicine by IOP Publishing Ltd

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Figure 2. — The simplification of source model and the derivation of in-plane source blur kernel. (a) For the simplified 1D line source $w_{0},$ we approximate it with $w_{0}^{'}$ and ignore the $w_{0}^{″}$ component. Given an impulse at height $z_{s}$ above the detector, its PSF at the detector is $w_{d} .$ (b) In the reconstruction process, the in-plane PSF at the impulse location is $w_{s}$ .