Measurement of backscatter to the monitor chamber of medical accelerators using target charge | Zendy

Lam Kwok L. | Zendy; Muthuswamy Moorthy S. | Zendy; Ten Haken Randall K. | Zendy

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Measurement of backscatter to the monitor chamber of medical accelerators using target charge

Author(s) -

Lam Kwok L.,

Muthuswamy Moorthy S.,

Ten Haken Randall K.

Publication year - 1998

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 - 10.1118/1.598203

Subject(s) - kapton , backscatter (email) , linear particle accelerator , optics , ionization chamber , charge (physics) , photon , physics , charge coupled device , materials science , nuclear physics , medical physics , beam (structure) , computer science , ion , nanotechnology , telecommunications , polyimide , layer (electronics) , quantum mechanics , wireless , ionization

A simple noninvasive method is described for determining the backscatter to a monitor chamber of a medical accelerator based on the measurement of charge deposited in the target. This method is compared quantitatively to the more elaborate telescopic method for photon beams of 6 MV and 15 MV on linear accelerators having mica and Kapton monitor chambers. The new target charge method gives results consistent with the telescopic method to within 0.3%.

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