Trapping deuterium atoms
Trapping deuterium atoms
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捕获氘原子
DOI：
10.1103/physreva.81.021402
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发表时间：
2010
影响因子：
2.9
通讯作者：
F. Merkt
中科院分区：
文献类型：
--
作者：
A. Wiederkehr;S. Hogan;B. Lambillotte;M. Andrist;H. Schmutz;J. Agner;Y. Salathé;F. Merkt
在实验室框架下，用24级塞曼减速器将超音速束流中的冷氢原子从475m/S的初始速度减速到零速度。原子被加载到磁性四极陷阱中，温度约为100mK，初始密度为{约}10{sup 6}cm{sup-3}。通过使用不规则的相角序列对减速器螺线管中的磁场进行脉冲来实现有效的减速。通过监测和抑制通过陷阱后螺线管场梯度观测到的原子反射，优化了陷阱加载。
Cold deuterium atoms in a supersonic beam have been decelerated from an initial velocity of 475 m/s to zero velocity in the laboratory frame using a 24-stage Zeeman decelerator. The atoms have been loaded in a magnetic quadrupole trap at a temperature of {approx}100 mK and an initial density of {approx}10{sup 6} cm{sup -3}. Efficient deceleration was achieved by pulsing the magnetic fields in the decelerator solenoids using irregular sequences of phase angles. Trap loading was optimized by monitoring and suppressing the observed reflection of the atoms by the field gradient of the back solenoid of the trap.