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

Recent improvements in the SHIELD-HIT code.

Author information

1
Department of Physics and Astronomy, University of Aarhus, Aarhus C, Denmark. dch05@phys.au.dk

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.

PMID:
21819203
DOI:
10.3109/09553002.2011.610863
[Indexed for MEDLINE]

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