据法国科学家说,物理学家们长期的梦想———桌面型粒子加速器距离实用只有一步之遥.这种加速器用两束激光脉冲产生的电场可以产生能量超过250MeV的单色电子束.与以往的尝试不同,这个装置产生的电子束相当稳定,可以用于放疗和X光机.人工制造高能粒子大多要用大型的粒子加速器才 According to French scientists, the long-cherished dream of physicists, the desktop particle accelerator, is just one practical step away from the practical use of an accelerator with two laser pulses to generate monochromatic electron beams with energies in excess of 250 MeV. Different attempts, this device produces a relatively stable electron beam can be used for radiotherapy and X-ray machine.Artificial high-energy particles are mostly used only a large particle accelerator