This paper describes a Monte Carlo (MC) approach to assess the ion recombination correction, ks and its associated uncertainty, u(ks), in plane-parallel chambers used in high dose-per-pulse electron beam dosimetry. The proposed method was applied to assess ks and u(ks) as a function of the ratio Q1/Q2, i.e., the charge collected at polarizing voltages V1 and V2, in a plane-parallel chamber with electrode spacing ℓ = 2 mm. Data were fitted to a general quadratic function with the aim to derive an analytical equation for easy and direct computation of ks and u(ks) in clinical dosimetry.
Use of Monte Carlo simulations for uncertainty evaluation: A proposed approach for a challenging issue in the dosimetry of high dose per pulse electron beams using plane-parallel chambers
D'Arienzo M.
;Pimpinella M.;
2021-01-01
Abstract
This paper describes a Monte Carlo (MC) approach to assess the ion recombination correction, ks and its associated uncertainty, u(ks), in plane-parallel chambers used in high dose-per-pulse electron beam dosimetry. The proposed method was applied to assess ks and u(ks) as a function of the ratio Q1/Q2, i.e., the charge collected at polarizing voltages V1 and V2, in a plane-parallel chamber with electrode spacing ℓ = 2 mm. Data were fitted to a general quadratic function with the aim to derive an analytical equation for easy and direct computation of ks and u(ks) in clinical dosimetry.File in questo prodotto:
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