Results 271 to 280 of about 1,908,615 (320)

Detection of the Linac Jaw face angle misalignment using high energy electron beam symmetry. [PDF]

J Appl Clin Med Phys
Gao S, Cibrian A, Ohrt J, Balter P.
europepmc   +1 more source

Standardized nutritional screening and assessment for nasopharyngeal cancer patients: an evidence-based implementation project. [PDF]

BMC Nurs
Cai W, Yang R, Tang C, Cao Y, Li J, Huang J, Song Y.   +6 more
europepmc   +1 more source

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Treatment planning consideration for very high-energy electron FLASH radiotherapy

Physica Medica, 2023
Very high-energy electron (VHEE) can make up the insufficient treatment depth of the low-energy electron while offering an intermediate dosimetric advantage between photon and proton. Combining FLASH with VHEE, a quantitative comparison between different energies was made, with regard to plan quality, dose rate distribution (both in PTV and OAR), and ...
Guoliang, Zhang, Zhengzhao, Zhang, Wenchao, Gao, Hong, Quan   +3 more
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Very high-energy electrons as radiotherapy opportunity

The European Physical Journal Plus
Jade Fischer, Lucy Whitmore, Colleen Desrosiers, Suzie Sheehy, Magdalena Bazalova-Carter   +4 more
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Development of a compact linear accelerator to generate ultrahigh dose rate high-energy X-rays for FLASH radiotherapy applications.

Medical Physics (Lancaster), 2022
PURPOSE In recent years, the FLASH effect, in which ultrahigh dose rate (UHDR) radiotherapy (RT) can significantly reduce toxicity to normal tissue while maintaining antitumor efficacy, has been verified in many studies and even applied in human clinical
Focheng Liu, Jiaru Shi, H. Zha, Guohua Li, An Li, Weihang Gu, A. Hu, Q. Gao, Haokun Wang, Liang Zhang, Jinsheng Liu, Yaohong Liu, Huarong Xu, Chuanxiang Tang, Huaibi Chen   +14 more
semanticscholar   +1 more source

Contrast enhancement of high-energy radiotherapy films

The British Journal of Radiology, 1978
An order-of-magnitude improvment in the contrast of high-energy localization and verification films has been achieved through the application of a simple, inexpensive, contrast enhancement technique. The method involves making reversal contact "prints" of the original film onto ordinary X-ray fi-m with equipment commonly available in any radiotherapy ...
L E, Reinstein, C G, Orton
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Photoneutron production in tissue during high energy bremsstrahlung radiotherapy

Physics in Medicine and Biology, 1988
The total yield of photoneutrons from soft-tissue-equivalent material irradiated with bremsstrahlung of end-point energy from 6 to 28 MeV has been measured using the 35 MeV University of Melbourne Betatron and a 4 pi Halpern-type neutron detector. The results are compared with calculations based on the cross sections for neutron production of the ...
P D, Allen, M A, Chaudhri
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ESR/alanine dosimetry of high-energy electrons in radiotherapy

International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1989
Abstract Dosimetry with detectors of organic material and electron spin resonance (ESR) spectroscopy for readout has been developed metrologically at GSF for high-level photon radiation. The tissue-equivalent probes also appear appropriate for therapy-level dosimetry.
Chu, S., Wieser, A., Feist, H.W., Regulla, D.F.   +3 more
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High energy electron radiotherapy in a magnetic field

Medical Physics, 1975
We propose the use of high energy electrons in a strong local magnetic field as the ionizing beam in radiation therapy. A high kinetic energy insures that the electrons will penetrate to deep-seated tumor masses. A high magnetic field of several tesla in the region encompassing the tumor will confine the high energy electrons to the tumor volume before
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