New model for an epoxy-based brachytherapy source to be used in spinal cancer treatment

Appl Radiat Isot. 2021 Dec:178:109952. doi: 10.1016/j.apradiso.2021.109952. Epub 2021 Sep 22.

Abstract

The present work described the cold fabrication of a P-32 radioactive source to be used in CNS cancer using epoxy resin. The epoxy plaque fabricated with Teflon mold presented better agreement. MCNP simulation evaluated the radiation dose. Special attention was given to factors that can impact dose distribution. Average dose was 16.44 ± 2.89% cGy/s. Differences of less than 0.01 cm in thickness within the plaque lead to differences of up to 12% in the dose rate.

Keywords: Brachytherapy; CNS cancer; Epoxy radiation source; Phosphorus-32; mcnp dose simulation.

MeSH terms

  • Brachytherapy / instrumentation*
  • Epoxy Resins / chemistry*
  • Equipment Design
  • Humans
  • Monte Carlo Method
  • Spinal Neoplasms / radiotherapy*

Substances

  • Epoxy Resins