Výsledky vyhledávání - "H. Szymanowski"

An empirical model for calculation of the collimator contamination dose in therapeutic proton beams

Autor: Régis Ferrand, Nicolas Freud, L Guinement, L. De Marzi, Catherine Nauraye, M. Vidal, P François, E. Hierso, David Sarrut, H. Szymanowski

Publikováno v: Physics in Medicine and Biology
Physics in Medicine and Biology, IOP Publishing, 2016, 61, pp.1532-1545. ⟨10.1088/0031-9155/61/4/1532⟩

International audience; Collimators are used as lateral beam shaping devices in proton therapy with passive scattering beam lines. The dose contamination due to collimator scattering can be as high as 10% of the maximum dose and influences calculatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b72565d536b5471fd40128d03e5be602
https://doi.org/10.1088/0031-9155/61/4/1532

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Solid State NMR Study and Density Functional Theory (DFT) Calculations of Structure and Dynamics of Poly(p-xylylenes)

Autor: M. Gazicki-Lipman, Anna Sroka-Bartnicka, Sebastian Olejniczak, H. Szymanowski, Marek J. Potrzebowski, Włodzimierz Ciesielski, A. Nosal

Publikováno v: The Journal of Physical Chemistry B. 113:5464-5472

High resolution solid state (13)C nuclear magnetic resonance (SS NMR) measurements were carried out on poly(p-xylylene) (PPX). The samples comprised vapor-deposited specimens as well as pure alpha and beta polymorphs of this polymer. The measurements

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1c2ae701b7df696bd20e097bf2ab52a
https://doi.org/10.1021/jp900788m

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Quantifying lateral tissue heterogeneities in hadron therapy

Autor: Jan J. Wilkens, H. Szymanowski, Uwe Oelfke, Daniel Pflugfelder

Publikováno v: Medical Physics. 34:1506-1513

In radiotherapy with scanned particle beams, tissue heterogeneities lateral to the beam direction are problematic in two ways: they pose a challenge to dose calculation algorithms, and they lead to a high sensitivity to setup errors. In order to quan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b7315d849414f8658e14888589e5a23
https://doi.org/10.1118/1.2710329

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Stability and effect of annealing on the optical properties of plasma-deposited Ta2O5 and Nb2O5 films

Autor: Jolanta E. Klemberg-Sapieha, A. Amassian, Oleg Zabeida, H. Szymanowski, Ludvik Martinu, J.-P. Masse

Publikováno v: Thin Solid Films. 515:1674-1682

Tantalum and niobium oxide optical thin films were prepared at room temperature by plasma-enhanced chemical vapor deposition using tantalum and niobium pentaethoxide (M(OC 2 H 5 ) 5 ) precursors. We studied the evolution of their optical and microstr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80ab0e99e4d80a8ccd2350582d5510e0
https://doi.org/10.1016/j.tsf.2006.05.047

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Assessment of a new multileaf collimator concept usingGEANT4Monte Carlo simulations

Autor: Stefan Leidenberger, Susanne Nuss, M. Tacke, Uwe Oelfke, C. Schulze, H. Szymanowski, Eugen Wehrwein

Publikováno v: Medical Physics. 33:1125-1132

The aim of the work was to investigate in advance the dosimetric properties of a new multileaf collimator(MLC) concept with the help of Monte Carlo(MC) simulations prior to the production of a prototype. The geometrical design of the MLC was implemen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::716b15bfbe5168f2f6feb2755b7c8d19
https://doi.org/10.1118/1.2181298

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Radiotherapy with laser-plasma accelerators: Monte Carlo simulation of dose deposited by an experimental quasimonoenergetic electron beam

Autor: Jérôme Faure, Victor Malka, T. Fuchs, Y. Glinec, H. Szymanowski, Uwe Oelfke

Publikováno v: Medical Physics. 33:155-162

The most recent experimental results obtained with laser-plasma accelerators are applied to radio-therapy simulations. The narrow electron beam, produced during the interaction of the laser with the gas jet, has a high charge (0.5 nC) and is quasimon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea7e1e04e2b0e9704a1f34adddcc0934
https://doi.org/10.1118/1.2140115

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Optical properties and microstructure of plasma deposited Ta2O5 and Nb2O5 films

Autor: Oleg Zabeida, H. Szymanowski, Jolanta-Ewa Klemberg-Sapieha, Ludvik Martinu

Publikováno v: Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 23:241-247

Advanced optical filter applications require an appropriate control of the optical constants, as well as of other suitable film properties such as mechanical performance, thermal and environmental stability, absence of refractive index inhomogeneitie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12986aa8607fcd454d033d9d5511275a
https://doi.org/10.1116/1.1851544

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Experimental determination and verification of the parameters used in a proton pencil beam algorithm

Autor: J.C. Rosenwald, H. Szymanowski, Catherine Nauraye, S. Caneva, M. C. Murillo, Régis Ferrand, A. Mazal, G. Gaboriaud, S. Biensan

Publikováno v: Medical Physics. 28:975-987

We present an experimental procedure for the determination and the verification under practical conditions of physical and computational parameters used in our proton pencil beam algorithm. The calculation of the dose delivered by a single pencil bea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f48515cb795ea1bff7a72f05d99a0200
https://doi.org/10.1118/1.1376445

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