It is proved that in electron circular accelerator, the longitudinal distribution ofparticles in electron bunch can be approximately expressed as hollow distribution.
在电子环型加速器中可以证明,电子束团中粒子沿纵向的分布律可近似地表示成为空心分布。
2
So on your computer's hard drive are again, a whole bunchof tiny magnetic particles aligned this way or this way.