Estimation of the focal spot size and shape for a medical linear accelerator by Monte Carlo simulation | Zendy

Wang Lilie L. W. | Zendy; Leszczynski Konrad | Zendy

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Estimation of the focal spot size and shape for a medical linear accelerator by Monte Carlo simulation

Author(s) -

Wang Lilie L. W.,

Leszczynski Konrad

Publication year - 2007

Publication title -

medical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.473

H-Index - 180

eISSN - 2473-4209

pISSN - 0094-2405

DOI - 10.1118/1.2426407

Subject(s) - monte carlo method , linear particle accelerator , penumbra , physics , optics , hot spot (computer programming) , medical imaging , computational physics , computer science , mathematics , statistics , beam (structure) , medicine , artificial intelligence , ischemia , operating system , cardiology

The focal spot size and shape of a medical linac are important parameters that determine the dose profiles, especially in the penumbral region. A relationship between the focal spot size and the dose profile penumbra has been studied and established from simulation results of the EGSnrc Monte Carlo code. A simple method is proposed to estimate the size and the shape of a linac's focal spot from the measured dose profile data.

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