Related Experiment Video
Updated: Nov 8, 2025
Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
Monte Carlo simulation to assess free space and end-weld thickness variation effects on dose rate for a new Ir-192
Lucas Verdi Angelocci1, Carla Daruich de Souza1, Evaggelos Pantelis2
1Nuclear and Energy Research Institute, IPEN, São Paulo, Brazil.
Abstract:
A new Iridium-192 seed for brachytherapy is under development. Specific dose rate contribution by two different factors were evaluated: the effect from movement of the core in the free space within the seed and the effect of the end-weld thickness variation. Both were investigated through use of the Monte Carlo radiation transport code MCNP6 and an in-house routine programmed with MATLAB. Differences greater than 15% compared to results from the nominal seed were found near the source, indicating a significant dose variation.
