CAJ | 학술논문

冷原子粘团的制备是喷泉钟研制的关键步骤之一。通过慢速原子束加载获得冷原子粘团，应用荧光收集法测量了冷原子粘团的原子数目，采用飞行时间法测量了冷原子粘团温度。冷原子粘团中原子数目在加载时间200ms的情况下为（8．14±0．2）×107，温度为（10．72±0．69）μK。
랭원자점단적제비시분천종연제적관건보취지일。통과만속원자속가재획득랭원자점단，응용형광수집법측량료랭원자점단적원자수목，채용비행시간법측량료랭원자점단온도。랭원자점단중원자수목재가재시간200ms적정황하위（8．14±0．2）×107，온도위（10．72±0．69）μK。
Preparation of the optical molasses is one of the key steps for developing a fountain clock. The optical molasses is loaded from a slow atomic beam, and the fluorescence collection method is applied to determine the number of atoms in the optical molasses, meanwhile the time-of-flight(TOF) method is used to measure the temperature of the optical molasses. The number of cold atoms in the optical molasses for loading time of 200 ms is determined to be (8.14±0.2)×107, and the temperature of cold atoms is determined to be (10.72±0.69) μK.