Energy spectrum control for modulated proton beams
نویسندگان
چکیده
منابع مشابه
Dynamic control of laser-produced proton beams.
The emission characteristics of intense laser driven protons are controlled using ultrastrong (of the order of 10(9) V/m) electrostatic fields varying on a few ps time scale. The field structures are achieved by exploiting the high potential of the target (reaching multi-MV during the laser interaction). Suitably shaped targets result in a reduction in the proton beam divergence, and hence an i...
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HYPOPHYSEAL PHOTONIRRADIATION An account is given below of the initial use of high-speed protons in human therapeutic investi gations. The rationale for pituitary irradiation, the technic employed, and the initial physiological changes after proton irradiation of the pituitary gland are given in detail. Roentgen irradiation of the human pituitary was performed by Gramegna in 1909 (43). Al thoug...
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Deflection of protons under axial channeling in a silicon crystal bent along the <111> axis was observed on experiment with 400-GeV protons at the CERN Super Proton Synchrotron. The deflection efficiency due to axial channeling of protons for the crystal with the bend angle 50 μrad was about 30 %. Axial channeling deflection occurred by means of doughnut scattering and hyper-channeling, this la...
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This study was designed to investigate dosimetric variations between proton plans with (PPW) and without (PPWO), a compensator for whole brain radiotherapy (WBRT). The retrospective study on PPW and PPWO in Eclipse and XiO systems and photon plans (XP) using controlled segments in Pinnacle system was performed on nine pediatric patients for craniospinal irradiations. DVHs and derived metrics, s...
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ژورنال
عنوان ژورنال: Medical Physics
سال: 2009
ISSN: 0094-2405
DOI: 10.1118/1.3132422