Experimental evaluation of pencil beam algorithm by measurements of dose distributions of protons traversing an L-shaped phantom

R. Kohno, Y. Takada, T. Sakae, A. Nohtomi, T. Terunuma, K. Yasuoka

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A proton dose-calculation method has been developed on the basis of the pencil-beam algorithm (PBA), which is expected to improve the precision of the conventional method based on the broad-beam algorithm (BBA). In order to verify the accuracy of calculation by the PBA, dose distributions formed by a horizontal proton beam traversing a phantom with an L-shaped horizontal cross section were measured using a silicon semiconductor detector (SSD) in a water vessel. The results of the measured dose distributions agree well with the ones calculated using the PBA within an rms error of 2.3%. Therefore, the dose-calculation method by the PBA is useful and applicable to actual treatment planning of the proton therapy.

Original languageEnglish
Pages (from-to)441-445
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume40
Issue number1
DOIs
Publication statusPublished - Jan 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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