Stopping cross sections of liquid water for MeV energy protons

Shimizu, Morihito; Kaneda, Mizuho; Hayakawa, T.; Tsuchida, H.; Itoh, Akio

doi:10.1016/j.nimb.2009.05.036

Cited by 39 publications

(55 citation statements)

References 19 publications

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“…a r t i c l e i n f o et al [1,2] at Kyoto (Japan), and by Siiskonen et al [3] at Jyväskylä 34 (Finland). In the Kyoto method, the stopping power was not mea- in the collection of stopping data graphs by one of us [6].…”

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confidence: 99%

Comments on recent measurements of the stopping power of liquid water

García-Molina

Abril

Vera

et al. 2013

Nuclear Instruments and Methods in Physics Research Section B:

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mentioning

confidence: 99%

Comments on recent measurements of the stopping power of liquid water

García-Molina

Abril

Vera

et al. 2013

Nuclear Instruments and Methods in Physics Research Section B:

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“…Recently, there have been measurements of the stopping power of liquid water for protons by two groups: the Kyoto group (Shimizu et al, 2009(Shimizu et al, , 2010) using a liquid water jet in vacuum, and the Jyväskylä group (Siiskonen, et al, 2011) using a thin water sheet (enclosed within two thin copper sheets) in transmission. The results are shown as points D, E and F in Figs.…”

Section: Water As a Targetmentioning

confidence: 99%

The Stopping Power of Matter for Positive Ions

Paul¹

2012

Modern Practices in Radiation Therapy

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“…Generally it is assumed that soft tissues can be approximated as liquid water, and so far the experimental and (mainly) theoretical efforts have concentrated on this material. Due to the inherent difficulty of measuring stopping power data in liquid targets, most of the available experiments are for water vapor and ice, although some scarce measurements have been reported for liquid water too [11][12][13][14][15][16][17]. Several theoretical approaches exist to study the energy loss of charged particles in liquid water [18][19][20][21][22], which can account for the general trends observed in the experimental data.…”

Section: Introductionmentioning

confidence: 99%

Energy deposition of H and He ion beams in hydroxyapatite films: A study with implications for ion-beam cancer therapy

et al. 2014

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Ion-beam cancer therapy is a promising technique to treat deep-seated tumors; however, for an accurate treatment planning, the energy deposition by the ions must be well known both in soft and hard human tissues. Although the energy loss of ions in water and other organic and biological materials is fairly well known, scarce information is available for the hard tissues (i.e., bone), for which the current stopping power information relies on the application of simple additivity rules to atomic data. Especially, more knowledge is needed for the main constituent of human bone, calcium hydroxyapatite (HAp), which constitutes 58% of its mass composition. In this work the energy loss of H and He ion beams in HAp films has been obtained experimentally. The experiments have been performed using the Rutherford backscattering technique in an energy range of 450-2000 keV for H and 400-5000 keV for He ions. These measurements are used as a benchmark for theoretical calculations (stopping power and mean excitation energy) based on the dielectric formalism together with the MELF-GOS (Mermin energy loss function-generalized oscillator strength) method to describe the electronic excitation spectrum of HAp. The stopping power calculations are in good agreement with the experiments. Even though these experimental data are obtained for low projectile energies compared with the ones used in hadron therapy, they validate the mean excitation energy obtained theoretically, which is the fundamental quantity to accurately assess energy deposition and depth-dose curves of ion beams at clinically relevant high energies. The effect of the mean excitation energy choice on the depth-dose profile is discussed on the basis of detailed simulations. Finally, implications of the present work on the energy loss of charged particles in human cortical bone are remarked.

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Stopping cross sections of liquid water for MeV energy protons

Cited by 39 publications

References 19 publications

Comments on recent measurements of the stopping power of liquid water

Comments on recent measurements of the stopping power of liquid water

The Stopping Power of Matter for Positive Ions

Energy deposition of H and He ion beams in hydroxyapatite films: A study with implications for ion-beam cancer therapy

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