Photostop of iodine atoms from electrically oriented ICl molecules

• Published in: Chinese physics B Vol. 24; no. 11; pp. 238 - 243
• Main Author: 暴大小 邓联忠 许亮 印建平
• Format: Journal Article
• Language: English
• Published: 01.11.2015
• Subjects: ICL; 分子动力学; 数值模拟; 概率分布函数; 生产速度; 电性; 碘原子; 速度分布
• DOI: 10.1088/1674-1056/24/11/113702
• ISSN: 1674-1056

The dynamics of photostopping iodine atoms from electrically oriented ICI molecules was numerically studied based on their orientational probability distribution functions. Velocity distributions of the iodine atoms and their production rates were investigated for orienting electrical fields of various intensities. For the IC1 precursor beams with an initial rotational temperature of ~ 1 K, the production of the iodine atoms near zero speed will be improved by about ~ 5 times when an orienting electrical field of ~ 200 kV/cm is present. A production rate of ~ 0.5%0 is obtained for photostopped iodine atoms with speeds less than 10 m/s, which are suitable for magnetic trapping. The electrical orientation of IC1 precursors and magnetic trapping of photostopped iodine atoms in situ can be conveniently realized with a pair of charged ring magnets. With the maximal value of the trapping field being ~ 0.28 T, the largest trapping speed is ~ 7.0 m/s for the iodine atom.