Recent improvements in the SHIELD-HIT code

Int J Radiat Biol. 2012 Jan;88(1-2):195-9. doi: 10.3109/09553002.2011.610863. Epub 2011 Sep 7.

Abstract

Purpose: The SHIELD-HIT Monte Carlo particle transport code has previously been used to study a wide range of problems for heavy-ion treatment and has been benchmarked extensively against other Monte Carlo codes and experimental data. Here, an improved version of SHIELD-HIT is developed concentrating on three objectives, namely: Enhanced functionality, improved efficiency, and a modification of employed physical models. METHODOLOGICAL DEVELOPMENTS: SHIELD-HIT (currently at version '10A') is now equipped with an independent detector geometry, ripple filter implementations, and it is capable of using accelerator control files as a basis for the primaries. Furthermore, the code has been parallelized and efficiency is improved. The physical description of inelastic ion collisions has been modified.

Results: The simulation of an experimental depth-dose distribution including a ripple filter reproduces experimental measurements with high accuracy.

Conclusions: SHIELD-HIT is now faster, more user-friendly and accurate, and has an enhanced functionality with some features being currently unique to SHIELD-HIT. The possibility of data file exchange with existing treatment planning software for heavy-ion therapy allows for benchmarking under treatment conditions as well as extending the capabilities of treatment planning software.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Elasticity
  • Heavy Ion Radiotherapy*
  • Monte Carlo Method*
  • Radiation Dosage
  • Time Factors