Range-modulated pencil beam algorithm for proton dose calculations

R. Kohno, Y. Takada, T. Sakae, Akihiro Nohtomi, T. Terunuma, K. Matsumoto, H. Matsuda

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The range-modulated pencil beam algorithm (RMPBA) has been developed for proton treatment planning on the basis of the pencil beam algorithm (PBA) to reduce the calculation time yet realize sufficient accuracy. It uses the depth-dose distribution of the range-modulated beam as a central-axis term of pencil beams. The spread of the range-modulated pencil beam is derived by assuming that the protons pass through the average thickness of the ridge-filter. The accuracy of dose calculations by the RMPBA is verified by comparison with dose measurements in water performed using a silicon semiconductor detector. The results of the measured dose distributions agree well with those of the calculations using the RMPBA. Furthermore, the calculation time required by the RMPBA is one-sixth of that required by the PBA in the case of the six-step ridge-filter. Therefore, the dose-calculation method by the RMPBA will be useful and applicable to actual treatment planning of proton therapy.

Original languageEnglish
Pages (from-to)5187-5193
Number of pages7
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
Volume40
Issue number8
Publication statusPublished - Aug 2001
Externally publishedYes

Fingerprint

pencil beams
Protons
dosage
protons
planning
ridges
Semiconductor detectors
Planning
Silicon detectors
filters
therapy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Kohno, R., Takada, Y., Sakae, T., Nohtomi, A., Terunuma, T., Matsumoto, K., & Matsuda, H. (2001). Range-modulated pencil beam algorithm for proton dose calculations. Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes, 40(8), 5187-5193.

Range-modulated pencil beam algorithm for proton dose calculations. / Kohno, R.; Takada, Y.; Sakae, T.; Nohtomi, Akihiro; Terunuma, T.; Matsumoto, K.; Matsuda, H.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes, Vol. 40, No. 8, 08.2001, p. 5187-5193.

Research output: Contribution to journalArticle

Kohno, R, Takada, Y, Sakae, T, Nohtomi, A, Terunuma, T, Matsumoto, K & Matsuda, H 2001, 'Range-modulated pencil beam algorithm for proton dose calculations', Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes, vol. 40, no. 8, pp. 5187-5193.
Kohno, R. ; Takada, Y. ; Sakae, T. ; Nohtomi, Akihiro ; Terunuma, T. ; Matsumoto, K. ; Matsuda, H. / Range-modulated pencil beam algorithm for proton dose calculations. In: Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes. 2001 ; Vol. 40, No. 8. pp. 5187-5193.
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