Tabulated square-shaped source model for linear accelerator electron beam simulation.

Context: Using this source model, the Monte Carlo (MC) computation becomes much faster for electron beams.

Aims: The aim of this study was to present a source model that makes linear accelerator (LINAC) electron beam geometry simulation less complex.

Settings And Design: In this study, a tabulated square-shaped source with transversal and axial distribution biasing and semi-Gaussian spectrum was investigated.

Dosimetry of Three Cone Beam Computerized Tomography Scanners at Different Fields of View in Terms of Various Head and Neck Organs.

Background: Marketing new radiography devices necessitates documenting their absorbed X-ray doses. Since the current literature lacks studies on new devices, we assessed the doses of two new devices that had not previously been assessed.

Objectives: The new devices were compared to the Promax three dimensional (3D) scanner at two fields of view (FOV) in nine critical head and neck tissues and organs.