Some of their work involved X-rays produced by particle accelerators, devices that bring atomic particles into high energies.

VOA: special.2009.12.08

Then, I gave you one other very important example of a particle moving in the x-y plane.

下面我再拿一个重要的例子,质点在 x-y 平面内的运动

耶鲁公开课 - 基础物理课程节选

There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.

没有什么其他的途径,可以让镍晶体发射,单束X光来,继而得到环状图案,如果电子束,是以粒子束形式出现的。

麻省理工公开课 - 固态化学导论课程节选

Both use vast particle accelerators to speed up electrons, which spray out X-rays as they pass around the accelerators.

BBC: Van Gogh's Flowers In A Blue Vase damage seen in X-rays