نتایج جستجو برای: medical linear accelerators

تعداد نتایج: 1066062  

1981
Richard C. McCall T. M. Jenkins R. A. Shore W. P. Swanson

Electron accelerators operating above about 10 MeV produce significant quantities of photoneutrons. This is not a new problem and was first reported by Laughlin1 in 1951 for a 23 MeV betatron. In recent years it has drawn considerable attention because of the increased use of higher-energy electron linear accelerators for radiation therapy and also because of the increased awareness of radiatio...

Journal: :IEEE Transactions on Nuclear Science 1971

Journal: :Medical physics 2006
A Sam Beddar Peter J Biggs Sha Chang Gary A Ezzell Bruce A Faddegon Frank W Hensley Michael D Mills

Intraoperative radiation therapy (IORT) has been customarily performed either in a shielded operating suite located in the operating room (OR) or in a shielded treatment room located within the Department of Radiation Oncology. In both cases, this cancer treatment modality uses stationary linear accelerators. With the development of new technology, mobile linear accelerators have recently becom...

2007
Alessandro G. Ruggiero

This report describes an approach to tritium production based on the use of multiple proton linear accelerators. Features of a single APTt Linac as proposed by the Los Alamos National Laboratory are presented and discussed. An alternative approach to the attainment of the same total proton beam power of 200 MW with several lower-performance superconducting Linacs is proposed and discussed. Alth...

2012
Zheng Chang James Bowsher Jing Cai Sua Yoo Zhiheng Wang Justus Adamson Lei Ren Fang‐Fang Yin

American Association of Physicists in Medicine (AAPM) task group (TG) 142 has recently published a report to update recommendations of the AAPM TG 40 report and add new recommendations concerning medical accelerators in the era of image-guided radiation therapy (IGRT). The recommendations of AAPM TG 142 on IGRT are timely. In our institute, we established a comprehensive imaging QA program on a...

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