Simplified Monte Carlo dose calculation for therapeutic proton beams

Ryosuke Kohno; Takeji Sakae; Yoshihisa Takada; Keiji Matsumoto; Hiroyuki Matsuda; Akihiro Nohtomi; Toshiyuki Terunuma; Yoshikazu Tsunashima

doi:10.1143/jjap.41.l294

Simplified Monte Carlo dose calculation for therapeutic proton beams

Ryosuke Kohno, Takeji Sakae, Yoshihisa Takada, Keiji Matsumoto, Hiroyuki Matsuda, Akihiro Nohtomi, Toshiyuki Terunuma, Yoshikazu Tsunashima

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

A simplified Monte Carlo (SMC) method has been developed for dose calculation of therapeutic proton beams. It uses the depth-dose distribution in water measured by a broad proton beam to calculate the energy loss in a material easily and accurately. It employs the water-equivalent model of inhomogeneous materials. In addition, the multiple scattering effect in the materials is also calculated using the water-equivalent thickness. The accuracy of dose calculations by the SMC method is verified by comparison with dose measurements in a heterogeneous phantom. Results of the measured dose distributions agree well with calculations by the SMC method, though those determined by the dose calculation method based on the pencil beam algorithm show a large discrepancy. Therefore, the dose-calculation method by the SMC method will be useful for application to the treatment planning for proton therapy.

Original language	English
Pages (from-to)	L294-L297
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	41
Issue number	3 A
DOIs	https://doi.org/10.1143/jjap.41.l294
Publication status	Published - Mar 1 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

Access to Document

10.1143/jjap.41.l294

Cite this

@article{b9cac329236a49199c634e0139d71895,

title = "Simplified Monte Carlo dose calculation for therapeutic proton beams",

abstract = "A simplified Monte Carlo (SMC) method has been developed for dose calculation of therapeutic proton beams. It uses the depth-dose distribution in water measured by a broad proton beam to calculate the energy loss in a material easily and accurately. It employs the water-equivalent model of inhomogeneous materials. In addition, the multiple scattering effect in the materials is also calculated using the water-equivalent thickness. The accuracy of dose calculations by the SMC method is verified by comparison with dose measurements in a heterogeneous phantom. Results of the measured dose distributions agree well with calculations by the SMC method, though those determined by the dose calculation method based on the pencil beam algorithm show a large discrepancy. Therefore, the dose-calculation method by the SMC method will be useful for application to the treatment planning for proton therapy.",

author = "Ryosuke Kohno and Takeji Sakae and Yoshihisa Takada and Keiji Matsumoto and Hiroyuki Matsuda and Akihiro Nohtomi and Toshiyuki Terunuma and Yoshikazu Tsunashima",

year = "2002",

month = mar,

day = "1",

doi = "10.1143/jjap.41.l294",

language = "English",

volume = "41",

pages = "L294--L297",

journal = "Japanese Journal of Applied Physics, Part 2: Letters",

issn = "0021-4922",

publisher = "IOP Publishing Ltd.",

number = "3 A",

}

TY - JOUR

T1 - Simplified Monte Carlo dose calculation for therapeutic proton beams

AU - Kohno, Ryosuke

AU - Sakae, Takeji

AU - Takada, Yoshihisa

AU - Matsumoto, Keiji

AU - Matsuda, Hiroyuki

AU - Nohtomi, Akihiro

AU - Terunuma, Toshiyuki

AU - Tsunashima, Yoshikazu

PY - 2002/3/1

Y1 - 2002/3/1

N2 - A simplified Monte Carlo (SMC) method has been developed for dose calculation of therapeutic proton beams. It uses the depth-dose distribution in water measured by a broad proton beam to calculate the energy loss in a material easily and accurately. It employs the water-equivalent model of inhomogeneous materials. In addition, the multiple scattering effect in the materials is also calculated using the water-equivalent thickness. The accuracy of dose calculations by the SMC method is verified by comparison with dose measurements in a heterogeneous phantom. Results of the measured dose distributions agree well with calculations by the SMC method, though those determined by the dose calculation method based on the pencil beam algorithm show a large discrepancy. Therefore, the dose-calculation method by the SMC method will be useful for application to the treatment planning for proton therapy.

AB - A simplified Monte Carlo (SMC) method has been developed for dose calculation of therapeutic proton beams. It uses the depth-dose distribution in water measured by a broad proton beam to calculate the energy loss in a material easily and accurately. It employs the water-equivalent model of inhomogeneous materials. In addition, the multiple scattering effect in the materials is also calculated using the water-equivalent thickness. The accuracy of dose calculations by the SMC method is verified by comparison with dose measurements in a heterogeneous phantom. Results of the measured dose distributions agree well with calculations by the SMC method, though those determined by the dose calculation method based on the pencil beam algorithm show a large discrepancy. Therefore, the dose-calculation method by the SMC method will be useful for application to the treatment planning for proton therapy.

UR - http://www.scopus.com/inward/record.url?scp=0036509096&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036509096&partnerID=8YFLogxK

U2 - 10.1143/jjap.41.l294

DO - 10.1143/jjap.41.l294

M3 - Article

AN - SCOPUS:0036509096

SN - 0021-4922

VL - 41

SP - L294-L297

JO - Japanese Journal of Applied Physics, Part 2: Letters

JF - Japanese Journal of Applied Physics, Part 2: Letters

IS - 3 A

ER -

Simplified Monte Carlo dose calculation for therapeutic proton beams

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this