Reference dosimetry of proton pencil beams based on dose-area product: a proof of concept.

Autor: Carles Gomà, Sairos Safai, Sándor Vörös
Předmět:
Zdroj: Physics in Medicine & Biology; 6/21/2017, Vol. 62 Issue 12, p1-1, 1p
Abstrakt: This paper describes a novel approach to the reference dosimetry of proton pencil beams based on dose-area product (). It depicts the calibration of a large-diameter plane-parallel ionization chamber in terms of dose-area product in a 60Co beam, the Monte Carlo calculation of beam quality correction factors—in terms of dose-area product—in proton beams, the Monte Carlo calculation of nuclear halo correction factors, and the experimental determination of of a single proton pencil beam. This new approach to reference dosimetry proves to be feasible, as it yields values in agreement with the standard and well-established approach of determining the absorbed dose to water at the centre of a broad homogeneous field generated by the superposition of regularly-spaced proton pencil beams. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index