Monte Carlo simulation to assess free space and end-weld thickness variation effects on dose rate for a new Ir-192 brachytherapy source

Autor(es)

Angelocci, Lucas Verdi ^[1] ; de Souza, Carla Daruich ^[1] ; Pantelis, Evaggelos ^[2] ; Nogueira, Beatriz Ribeiro ^[1] ; Zeituni, Carlos Alberto ^[1] ; Chueri Martins Rostelato, Maria Elisa ^[1]

Afiliação do(s) autor(es)

^[1] IPEN, Nucl & Energy Res Inst, Sao Paulo - Brazil

^[2] Natl & Kapodistrian Univ Athens, Med Sch, Med Phys Lab, Athens - Greece

• Tipo de documento: Artigo Científico
• Fonte: Applied Radiation and Isotopes; v. 173, JUL 2021.
• Citações Web of Science: 0

Resumo

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. (AU)

• Processo FAPESP: 18/18526-2 - Nanofonte Radioativa para Utilização em Braquiterapia
• Beneficiário: Carla Daruich de Souza
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado