title: [Laser resonance ionization spectroscopy of even-parity autoionization states of cerium atom].
abstract: This paper describes the investigation of even-parity autoionization states of cerium atoms by three-step three-color resonance ionization spectroscopy (RIS). Twenty-seven odd-parity highly excited levels, whose transition probability is high, were used in this research. One hundred and forty-one autoionization states were found by these channels with the third-step laser scanning in the wavelength range of 634-670 nm. The ionization probabilities of different channels, which had higher cross sections, were compared. On the basis of this, eight optimal photoionization schemes of cerium atom have been given.
authors.affiliation: Laser Resonance Ionization Mass Spectrometry Laboratory, Northwest Institute of Nuclear Technology, Xi'an 710613, China.
authors.forename: Zhi-ming
authors.initials: ZM
authors.lastname: Li
authors.forename: Feng-rong
authors.initials: FR
authors.lastname: Zhu
authors.forename: Zi-bin
authors.initials: ZB
authors.lastname: Zhang
authors.forename: Xiang-jun
authors.initials: XJ
authors.lastname: Ren
authors.forename: Hu
authors.initials: H
authors.lastname: Deng
authors.forename: Li-hua
authors.initials: LH
authors.lastname: Zhai
authors.forename: Li-xing
authors.initials: LX
authors.lastname: Zhang