铷钟原子气室氦气渗透率实验研究

左玉龙, 李豆, 徐俊秋, 祝伟航, 王鹏飞, 明刚, 王芳, 王晨, 康松柏, 赵峰, 梅刚华

Study on Helium Permeation in Rubidium Clock’s Vapor Cell

ZUO Yulong, LI Dou, XU Junqiu, ZHU Weihang, WANG Pengfei, MING Gang, WANG Fang, WANG Chen, KANG Songbai, ZHAO Feng, MEI Ganghua

图1 CPT频标实验平台. 物理系统单元放置在气箱内以保证780 Torr的氦气环境.(a)玻璃气室实物图，(b)气箱实物图，(c) CPT共振谱

Fig. 1 CPT clock experimental setup. The physical system unit is placed in an air box to ensure a helium environment of 780 Torr. (a) physical picture of glass-blowing cell, (b) physical picture of air box, (c) CPT resonance spectroscopy