Monte-Carlo-simulation von multileafkollimatoren mit gekrümmten lamellenenden

Translated title of the contribution: Monte Carlo simulation of multileaf-collimators with curved leaf-ends

F. Haryanto, M. Fippel, Wolfram Laub, F. Nüsslin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A model for the simulation of the accelerator heads of two identical linear accelerators was designed at the University Hospital of Tübingen, using the BEAM program developed at the National Research Council of Canada. Both linear accelerators are equipped with multileaf collimators (MLCs) and backup jaws (y-direction) with curved leaf-ends. The accelerator models were divided into two parts. The first part consisted of target, primary collimator, flattening filter, monitor chamber, and mirror. After the Monte Carlo simulation of these parts, the phase-space characteristics below the mirror were stored in a file and used as source for the second part of the accelerator head (jaw, MLC). The electron source was assumed to deliver a gaussian energy spectrum, with parallel direction to the beam axis. With this electron source, there was good agreement between the measured and simulated depth dose curves in water, with difference <2%. A new module was created for the BEAM program to simulate backup jaws, while the standard MLCQ module from BEAM was used to simulate a MLC with curved leaf-ends. As a result, MLCs and backup jaws with curved leaf-ends make the shoulder of the y-profle higher than the straight-end MLCs.

Original languageGerman
Pages (from-to)172-178
Number of pages7
JournalZeitschrift fur Medizinische Physik
Volume11
Issue number3
StatePublished - 2001
Externally publishedYes

Fingerprint

Jaw
Particle Accelerators
Electrons
Head
Water
Direction compound

Keywords

  • BEAM program
  • Linear accelerator
  • Monte Carlo methods
  • Multileaf-collimator with curved leaf-ends

ASJC Scopus subject areas

  • Biophysics

Cite this

Haryanto, F., Fippel, M., Laub, W., & Nüsslin, F. (2001). Monte-Carlo-simulation von multileafkollimatoren mit gekrümmten lamellenenden. Zeitschrift fur Medizinische Physik, 11(3), 172-178.

Monte-Carlo-simulation von multileafkollimatoren mit gekrümmten lamellenenden. / Haryanto, F.; Fippel, M.; Laub, Wolfram; Nüsslin, F.

In: Zeitschrift fur Medizinische Physik, Vol. 11, No. 3, 2001, p. 172-178.

Research output: Contribution to journalArticle

Haryanto, F, Fippel, M, Laub, W & Nüsslin, F 2001, 'Monte-Carlo-simulation von multileafkollimatoren mit gekrümmten lamellenenden', Zeitschrift fur Medizinische Physik, vol. 11, no. 3, pp. 172-178.
Haryanto, F. ; Fippel, M. ; Laub, Wolfram ; Nüsslin, F. / Monte-Carlo-simulation von multileafkollimatoren mit gekrümmten lamellenenden. In: Zeitschrift fur Medizinische Physik. 2001 ; Vol. 11, No. 3. pp. 172-178.
@article{ac4e5ccd574943b9b5faf5a7c4373194,
title = "Monte-Carlo-simulation von multileafkollimatoren mit gekr{\"u}mmten lamellenenden",
abstract = "A model for the simulation of the accelerator heads of two identical linear accelerators was designed at the University Hospital of T{\"u}bingen, using the BEAM program developed at the National Research Council of Canada. Both linear accelerators are equipped with multileaf collimators (MLCs) and backup jaws (y-direction) with curved leaf-ends. The accelerator models were divided into two parts. The first part consisted of target, primary collimator, flattening filter, monitor chamber, and mirror. After the Monte Carlo simulation of these parts, the phase-space characteristics below the mirror were stored in a file and used as source for the second part of the accelerator head (jaw, MLC). The electron source was assumed to deliver a gaussian energy spectrum, with parallel direction to the beam axis. With this electron source, there was good agreement between the measured and simulated depth dose curves in water, with difference <2{\%}. A new module was created for the BEAM program to simulate backup jaws, while the standard MLCQ module from BEAM was used to simulate a MLC with curved leaf-ends. As a result, MLCs and backup jaws with curved leaf-ends make the shoulder of the y-profle higher than the straight-end MLCs.",
keywords = "BEAM program, Linear accelerator, Monte Carlo methods, Multileaf-collimator with curved leaf-ends",
author = "F. Haryanto and M. Fippel and Wolfram Laub and F. N{\"u}sslin",
year = "2001",
language = "German",
volume = "11",
pages = "172--178",
journal = "Zeitschrift fur Medizinische Physik",
issn = "0939-3889",
publisher = "Urban und Fischer Verlag Jena",
number = "3",

}

TY - JOUR

T1 - Monte-Carlo-simulation von multileafkollimatoren mit gekrümmten lamellenenden

AU - Haryanto, F.

AU - Fippel, M.

AU - Laub, Wolfram

AU - Nüsslin, F.

PY - 2001

Y1 - 2001

N2 - A model for the simulation of the accelerator heads of two identical linear accelerators was designed at the University Hospital of Tübingen, using the BEAM program developed at the National Research Council of Canada. Both linear accelerators are equipped with multileaf collimators (MLCs) and backup jaws (y-direction) with curved leaf-ends. The accelerator models were divided into two parts. The first part consisted of target, primary collimator, flattening filter, monitor chamber, and mirror. After the Monte Carlo simulation of these parts, the phase-space characteristics below the mirror were stored in a file and used as source for the second part of the accelerator head (jaw, MLC). The electron source was assumed to deliver a gaussian energy spectrum, with parallel direction to the beam axis. With this electron source, there was good agreement between the measured and simulated depth dose curves in water, with difference <2%. A new module was created for the BEAM program to simulate backup jaws, while the standard MLCQ module from BEAM was used to simulate a MLC with curved leaf-ends. As a result, MLCs and backup jaws with curved leaf-ends make the shoulder of the y-profle higher than the straight-end MLCs.

AB - A model for the simulation of the accelerator heads of two identical linear accelerators was designed at the University Hospital of Tübingen, using the BEAM program developed at the National Research Council of Canada. Both linear accelerators are equipped with multileaf collimators (MLCs) and backup jaws (y-direction) with curved leaf-ends. The accelerator models were divided into two parts. The first part consisted of target, primary collimator, flattening filter, monitor chamber, and mirror. After the Monte Carlo simulation of these parts, the phase-space characteristics below the mirror were stored in a file and used as source for the second part of the accelerator head (jaw, MLC). The electron source was assumed to deliver a gaussian energy spectrum, with parallel direction to the beam axis. With this electron source, there was good agreement between the measured and simulated depth dose curves in water, with difference <2%. A new module was created for the BEAM program to simulate backup jaws, while the standard MLCQ module from BEAM was used to simulate a MLC with curved leaf-ends. As a result, MLCs and backup jaws with curved leaf-ends make the shoulder of the y-profle higher than the straight-end MLCs.

KW - BEAM program

KW - Linear accelerator

KW - Monte Carlo methods

KW - Multileaf-collimator with curved leaf-ends

UR - http://www.scopus.com/inward/record.url?scp=0034817117&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034817117&partnerID=8YFLogxK

M3 - Article

VL - 11

SP - 172

EP - 178

JO - Zeitschrift fur Medizinische Physik

JF - Zeitschrift fur Medizinische Physik

SN - 0939-3889

IS - 3

ER -