Results 101 to 110 of about 1,800,736 (210)

Segmented ionization chambers for beam monitoring in hadrontherapy. [PDF]

, 2015
Segmented ionization chambers represent a good solution to monitor the position, the intensity and the shape of ion beams in hadrontherapy. Pixel and strip chambers have been developed for both passive scattering and active scanning dose delivery systems.
Braccini, Saverio, Pittà, Giuseppe, Cirio, Roberto, Marchetto, Flavio, Lavagno, Marco, La Rosa, Vanessa, Donetti, Marco   +6 more
core   +2 more sources

Spatially fractionated radiotherapy with very high energy electron pencil beam scanning [PDF]

Objective. To evaluate spatially fractionated radiation therapy (SFRT) for very-high-energy electrons (VHEEs) delivered with pencil beam scanning. Approach.
Dosanjh, Manjit, Bateman, Joseph, Farabolini, Wilfrid, Krim, Deae-eddine, Corsini, Roberto, Bazalova-Carter, Magdalena, Fischer, Jade, Korysko, Pierre, Clements, Nathan, Rieker, Vilde, Hart, Alexander, Bedriová, Nicole   +11 more
core   +1 more source

Tradeoffs in the design of a spaceborne scanning pencil beam scatterometer: Application to SeaWinds

, 1997
SeaWinds is a spaceborne wind scatterometer to be flown on the second Japanese Advanced Earth Observing Satellite (ADEOS-II) in 1999. An important international element of NASA\u27s Earth Observing System (EOS), SeaWinds is an advanced follow-on to the ...
Long, David G., Wu, Chialin T., Spencer, Michael W.   +2 more
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Conformity and robustness of gated rescanned carbon ion pencil beam scanning of liver tumors at NIRS.

Pencil beam scanning offers excellent conformity, but is sensitive to organ motion. We conducted a simulation study to validate our rescanning approach in combination with gating in the irradiation of liver tumors.journal ...
Ｚｅｎｋｌｕｓｅｎ Ｓｉｌｖａｎ Ｍａｒｉｕｓ, 安田 茂雄, Yasuda, Shigeo, 稲庭 拓, Mori, Shinichiro, 森 慎一郎, Inaniwa, Taku, 471495, Furukawa, Takuji, 471496, Imada, Hiroshi, 471494, 471499, 471497, 471498, Zenklusen, Silvan, 471509, Shirai, Toshiyuki, 古川 卓司, Noda, Koji, 471503, 471504, 471501, 471502, 471507, 471508, 471505, 471506, 今田 浩史, 白井 敏之, 471500, 野田 耕司   +31 more
core  

Measurement of stray neutron doses inside the treatment room from a proton pencil beam scanning system

, 2017
International audiencePurpose To measure the environmental doses from stray neutrons in the vicinity of a solid slab phantom as a function of beam energy, field size and modulation width, using the proton pencil beam scanning (PBS) technique.
Ploc, O., Mojżeszek, N., Farah, J., Olko, P., Stolarczyk, L., Waligórski, M.P.R., Kłodowska, M.   +6 more
core   +1 more source

Dose comparison of proton beam therapy with and without a multileaf collimator in the treatment of multiple hepatocellular carcinoma

Physics and Imaging in Radiation Oncology
Background and purpose: Proton beam therapy (PBT) offers dosimetric advantages over conventional photon-based radiation therapy in treating hepatocellular carcinoma (HCC) because it more effectively spares normal liver tissue. This study investigated the
Fang-Jing Li, Jen-Yu Cheng, Yu-Ming Wang, Meng-Wei Ho, Bing-Shen Huang   +4 more
doaj   +1 more source

Beam angle selection incorporation of anatomical heterogeneities for pencil beam scanning charged-particle therapy

In charged particle therapy with pencil beam scanning (PBS), localization of the dose in the Bragg peak makes dose distributions sensitive to lateral tissue heterogeneities.
稲庭 拓, 476953, 寅松 千枝, 476954, 476955, Toramatsu, Chie, Inaniwa, Taku, 476952   +7 more
core   +1 more source

Retrofitting a clinical pencil beam scanning proton therapy unit for 2D ultra-high dose rate scanning [PDF]

Purpose. This work aimed to demonstrate how existing clinical infrastructure can be adapted to enable ultra-high dose rate (UHDR) pencil beam scanning (PBS) for FLASH research.
Psoroulas, S. (author), Colizzi, I. (author), Meer, D. (author), Schaefer, R. (author), Dellepiane, G. (author)   +4 more
core   +1 more source

Generalizable dose denoising using diffusion transformer framework for pencil beam scanning proton therapy

Physics and Imaging in Radiation Oncology
Background and purpose: Intensity-modulated proton therapy (IMPT) enables conformal dose delivery for head and neck (H&N) cancers. However, its sensitivity to inter-fractional anatomical changes motivates online adaptations, where rapid and accurate ...
Yuzhen Ding, Hongying Feng, Jianfeng Zhao, Jason Holmes, Martin Bues, Lisa A. McGee, Jean-Claude M. Rwigema, Nathan Y. Yu, Terence T. Sio, Sameer R. Keole, William W. Wong, Steven E. Schild, Jonathan B. Ashman, Sujay A. Vora, Daniel J. Ma, Samir H. Patel, Wei Liu   +16 more
doaj   +1 more source

Pencil-beam scanning proton therapy for anal cancer: a dosimetric comparison with intensity-modulated radiotherapy

, 2015
Background. Concurrent chemoradiotherapy cures most patients with anal squamous cell carcinoma at the cost of significant treatment-related toxicities. Intensity-modulated radiotherapy (IMRT) reduces side effects compared to older techniques, but whether
Edgar Ben-Josef (809339), John P. Plastaras (809340), Reid F. Thompson (88746), Eric Ojerholm (809334), Maura L. Kirk (809335), Stefan Both (809338), Huifang Zhai (809336), James M. Metz (809337)   +7 more
core   +1 more source