Influence of multiple scattering and energy loss straggling on the absorbed dose distributions of therapeutic light ion beams: I. Analytical pencil beam model.

Hollmark, M,1975-Karolinska Institutet,Stockholms universitet,Medicinsk strålningsfysik (tills m KI),Division of Medical Radiation Physics, Department of Oncology-Pathology, Karolinska Institutet and Stockholm University (författare)

Influence of multiple scattering and energy loss straggling on the absorbed dose distributions of therapeutic light ion beams : I. Analytical pencil beam model.

The lateral and longitudinal distributions of absorbed dose of broad and narrowlight ion beams in water are investigated. An analytical algorithm based on thegeneralized Fermi–Eyges theory is developed and used to calculate the effectsof multiple scattering and range straggling on the dose distribution of light ionbeams in water. A first-order Gaussian multiple scattering and energy lossstraggling approach is generally sufficiently accurate for describing the lateraland longitudinal spread of the Bragg peak and the associated energy depositiondistribution of therapeutic light ion beams at ranges of clinical interest. Nuclearreactions are not taken into account in this study. The analytical algorithmgiven in the present study allows an accurate description of the radial spreadand the range straggling of light ions traversing matter. A verification of thisapproach by comparing with experimental data, Monte Carlo methods andother analytical techniques will be presented in a forthcoming paper.

TEKNIK OCH TEKNOLOGIER Medicinteknik Annan medicinteknik hsv//swe
ENGINEERING AND TECHNOLOGY Medical Engineering Other Medical Engineering hsv//eng
NATURVETENSKAP Fysik Annan fysik hsv//swe
NATURAL SCIENCES Physical Sciences Other Physics Topics hsv//eng
Algorithms
Electrons
Ions
Light
Models; Statistical
Monte Carlo Method
Normal Distribution
Particle Accelerators
Radiotherapy Planning; Computer-Assisted/instrumentation/*methods
Scattering; Radiation
Water
Medical Radiophysics

Uhrdin, JStockholms universitet,Medicinsk strålningsfysik (tills m KI) (författare)
Dz, BelkićKarolinska Institutet (författare)
Gudowska, IKarolinska Institutet,Stockholms universitet,Medicinsk strålningsfysik (tills m KI) (författare)
Brahme, AKarolinska Institutet,Stockholms universitet,Medicinsk strålningsfysik (tills m KI) (författare)
Belkić, Dževad (författare)
Stockholms universitetMedicinsk strålningsfysik (tills m KI) (creator_code:org_t)

Av författaren/redakt...: Hollmark, M, 197 ...; Uhrdin, J; Dz, Belkić; Gudowska, I; Brahme, A; Belkić, Dževad

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Medicinteknik; och Annan medicintek ...

Av lärosätet: Stockholms universitet; Uppsala universitet; Karolinska Institutet

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