Combination of magneto-optical trapping and mass spectrometry for calcium-isotope analysis

Ko K.-H., Kim Y., Lee L., Kim T.-S., Park H., Jeong D.-Y., Jang K.-H., Park G.-S.
Journal of the Korean Physical Society, 63(4), 927(2013)
DOI: 10.3938/jkps.63.927

Abstract

A method using a combination of a magneto-optical trap and a mass spectrometer, referred to as atom trap-mass spectrometry (ATMS), is employed for calcium-isotope analysis. A calcium magneto-optical trap with a Zeeman slower is used in the first isotope-selection stage of the ATMS. The trapped calcium isotope is ionized by using a frequency-doubled Nd:YAG laser, and the photoions are analyzed using a time-of-flight mass spectrometer. The isotope-selection characteristics of the combination method and further improvements in the method are discussed in this work. © 2013 The Korean Physical Society.