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搜索结果: 1-6 共查到理学 Electron beams相关记录6条 . 查询时间(0.156 秒)
Abstract: Next generation hard X-ray free electron lasers require electron beams with low transverse emittance. One proposal to achieve these low emittances is to exploit the eigen-emittance values of...
Relativistic electron beams above thunderclouds emit 100 kHz radio waves which illuminate the Earth's atmosphere and near-Earth space. This contribution aims to clarify the physical processes which ar...
A new twist on transmission electron microscopy (TEM) could enable the technique to unlock even more secrets on the nanoscale. Researchers in the US have produced a helical-shaped beam of electrons th...
Physicists in Japan have for the first time generated beams of electrons displaying the fundamental physical property of orbital angular momentum. Like light beams before, these electron beams have ha...
期刊信息 篇名 On the possibility of determining an effective energy spectrum of clinical electron beams from percentage depth dose (PDD) data of broad beams 语种 英文 撰写或编译 撰写 作者 Luo Zhengming and David Jette 第...
13 December 2006,High-energy particles are mostly produced in vast conventional accelerators such as the 6.3-km-circumference Tevatron in the US. But while these costly edifices have undoubtedly led t...

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