小张角双锥厚针孔关键参数的测量方法

Measurement Method of Key Parameter of Thick Pinhole with Little-angle and Double Cones

摘要: 针对小张角双锥厚针孔等效直径和视场直径的检测需求，利用⁶⁰Co γ辐射源设计了厚针孔关键参数测量实验，获得了与计算较为一致的结果。本文所建立的实验方法为厚针孔设计的可靠性与部分加工参数的准确性提供了高精度的验证途径。

Abstract: In order to measure the effective diameter and the field-of-view diameter for a thick pinhole with a little-angle and double cones, experiments were designed and carried out on a ⁶⁰Co gamma source, and the experimental result agrees well with the calculated result. The experimental method presented in the paper can supply a high precision approach to validating the reliability of design and the precision of manufacture.