| Non-diverging analytic expression for the on-axis sensitivity of converging collimators: analytic derivation. | |
MedLine Citation:
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PMID: 17047277 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The expressions for the sensitivity of converging collimators found in the literature diverge at points near the focal locus of the collimator. In this paper, an analytical formula that does not diverge is derived and compared to that available in the literature. An analysis is provided to predict the cases in which use of the new formula is advisable. Since the first expression derived is rather complex, approximations were made to reach simpler formulae. The formulae derived can be used to define and extend the realm of applicability of the literature expression in the cases identified in their derivation. |
Authors:
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R Accorsi; S D Metzler |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S. Date: 2006-10-17 |
Journal Detail:
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Title: Physics in medicine and biology Volume: 51 ISSN: 0031-9155 ISO Abbreviation: Phys Med Biol Publication Date: 2006 Nov |
Date Detail:
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Created Date: 2006-10-18 Completed Date: 2007-01-12 Revised Date: 2007-12-03 |
Medline Journal Info:
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Nlm Unique ID: 0401220 Medline TA: Phys Med Biol Country: England |
Other Details:
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Languages: eng Pagination: 5675-96 Citation Subset: IM |
Affiliation:
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Department of Radiology, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA. accorsi@email.chop.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Computer Simulation Equipment Design Image Processing, Computer-Assisted / methods* Models, Statistical Models, Theoretical Monte Carlo Method Reproducibility of Results Sensitivity and Specificity Tomography, Emission-Computed, Single-Photon / instrumentation*, methods |
| Grant Support | |
ID/Acronym/Agency:
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R01-EB-001809/EB/NIBIB NIH HHS; R01-EB-001910/EB/NIBIB NIH HHS; R33-EB-001543/EB/NIBIB NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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