نتایج جستجو برای: medical accelerator

تعداد نتایج: 610356  

Journal: :Journal of Applied Clinical Medical Physics 2010

Journal: :Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 1996

1979
R. C. McCall T. M. Jenkins R. A. Shore P. D. LaRiviere

PERSONNEL HAZARDS FROM MEDICAL ELECTRON ACCELERATOR PHOTONEUTRONS" R. C. McCall, T. M. Jenkins, R. A. Shore and P. D. LaRiviere+ Stanford Linear Accelerator Center, CA, U.S.A. and Varian Associates? INTRODUCTION For medical accelerators, neutron penetration through the room entry door is the major personnel hazard. Most therapy accelerator rooms are designed with at least a rudimentary maze to ...

Journal: :International Journal of Biomedical Imaging 2011

2000
S. M. HANNA

The majority of medical accelerators for radiation therapy use frequencies in the S-band range. Having a compact accelerator allows for a wide range of treatments. The size and weight of the accelerator are substantially reduced if a higher frequency is used. X-band frequencies are suitable for such applications. X-band accelerator technology has been used in high-energy, as well as, industrial...

Journal: :IEEE Transactions on Nuclear Science 1979

2010
M. Nishiuchi H. Sakaki T. Hori P. R. Bolton K. Ogura A. Sagisaka A. Yogo M. Mori S. Orimo A. S. Pirozhkov I. Daito H. Kiriyama H. Okada S. Kanazawa S. Kondo T. Shimomura M. Tanoue Y. Nakai H. Sasao D. Wakai H. Daido K. Kondo H. Souda H. Tongu A. Noda Y. Iseki T. Nagafuchi K. Maeda K. Hanawa

The concept of a compact ion particle accelerator has become attractive in view of recent progress in laserdriven ion acceleration. We report here the recent progress in the laser-driven proton beam transport at the Photo Medical Research Center (PMRC) at JAEA, which is established to address the challenge of laser-driven ion accelerator development for ion beam cancer therapy.

2008

Technological inventions and developments have created new possibilities and breakthroughs in medical era. The classic example is the discovery of X-rays by W.C. Roentgen, one hundred years ago. The first dawning rays appeared quite literally just before the beginning of the 20th century. In 1895 a German physicist named Wilhelm Conrad Roentgen accidentally discovered a form of radiation that c...

1999
S. M. HANNA

Most radiation therapy machines are based on microwave linear accelerators. The majority of medical accelerators use frequencies in the S-band range. Having a compact accelerator allows for a wide range of treatments. The size and weight of the accelerator is substantially reduced if a higher frequency is used. X-band frequencies are suitable for such applications. The X-band accelerator techno...

ژورنال: سنجش و ایمنی پرتو 2015

With the development of science and technology in the medical field and need more than ever to accuracy and quality of treatment has been causer increase different radiotherapy methods. Almost the past two decade’s intraoperative radiation therapy (IORT) as one of the new techniques used to treat cancer patients. One of the problems with this method is obtaining accurate dosimetry, becaus...

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