[Experimental study on the Eu isotopic enrichment].
The polarized atomic beam has found many applications, such as in studying atomic scattering processes, producing polarized nucleus, verifying the parity principle, measuring surface parameters and enriching isotopes. In this paper, we mainly described the experiment of Eu isotope enrichment by means of magnetic deflection. According to the special inner energy level structure of Eu atom, we analyzed the theory of the polarized atomic beam and described the main experimental set-up. Using one coherent laser with the wavelength of 601.9 nm and sigma polarization, Eu153 atoms have been selectively optical pumped and polarized, so positive and negative polarized atomic beams could be produced. The polarized atomic beams have been focused and defocused after passing through the deflection by hex-magnet. Finally, some clear enrichmental signal has been obtained in way of hot-wire detection. During the process of the experiment, we carefully selected the optimized conditions, the Eu153 enrichment effect of 4% can be achieved using only one coherent laser.
Huang
Xue-ren
XR
Wuhan Physics and Mathematics Institute of Chinese Academy of Sciences, Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan 430071, China.
Zhong
Da
D
Mei
Gang-hua
GH
Zhu
Xi-wen
XW
D004583:Electrons; D005063:Europium / Q000737:chemistry*; D005454:Fluorescence Polarization; D007554:Isotopes; D007834:Lasers; D008280:Magnetics; D012542:Scattering, Radiation
D007554:Isotopes; D005063:Europium