نتایج جستجو برای: medical linear accelerators
تعداد نتایج: 1066062 فیلتر نتایج به سال:
Journal of Medical Device Regulation May 2006 The third edition of IEC 60601-1 represents a major overhaul of the IEC 60601 family of medical electrical equipment safety standards. First published in 1977, IEC 60601-1 has become the ‘bible’ of electromedical equipment safety and the parent standard of over 60 particular device standards ranging from diagnostic electrocardiographs to electron ac...
Modern dual photon energy linear accelerators often come with a few megavoltage electron beams. The megavoltage electron beam has limited range and relative sharp distal falloff in its depth dose curve compared to that of megavoltage photon beam. Its radiation dose is often delivered appositionally to cover the target volume to its distal 90% depth dose (d90), while avoiding the normal--sometim...
To date active research on laser-driven plasma-based accelerators have achieved great progress on production of high-energy, high-quality electron and photon beams in a compact scale. Such laser plasma accelerators have been envisaged bringing a wide range of applications in basic, medical and industrial sciences. Here inheriting the groundbreaker's review article on "Laser Acceleration and its...
The ultracold plasma-based electron source has recently been proposed as an alternative to conventional photoinjectors or thermionic electron guns, which are widely used in today’s particle accelerators. The advantages of the ultracold plasma-based electron source lie in the fact that the electrons extracted from the cold plasma (from near threshold ionization of ultracold atoms) has very low t...
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