NIM锶原子钟用准直器的初步计算

Calculation of a Novel Collimation Aperture Used in NIM Sr Clock

在锶原子钟的研制过程中,为提高原子束的准直效率,需要在准直器圆面上加工出最大数量的给定直径的小孔。用小圆紧密排列逐层求算的计算方法,在直径D=3080μm的圆面积上获得小圆孔(d=200μm)个数的最大值,提高了原子束准直器的准直性。

In order to design a novel collimation aperture used in NIM Sr clock, it is necessary to know how many small given diameter holes can be drilled on the circle surface of a collimation. Using circle arranged tightly and calculation by layer method, the maximum amount of the small holes（d=200 μm） on the circle surface （D=3 080 μm） is obtained.