title: Characteristics of spectral lines with crater development during laser-induced breakdown spectroscopy.
abstract: To study the characteristics of spectral lines with crater development during laser-induced breakdown spectroscopy, the changes in the spectral line intensities of iron (Fe) and chromium (Cr) during the development of craters were investigated. Images of the plasmas formed during crater development were captured, and the temperatures and electron densities of the plasmas were calculated. The results showed that when a crater developed, the intensities of the ion lines decreased and the intensities of the atomic lines increased. This is because the plasmas generated in the crater have a higher initial emission intensity and experience more rapid cooling as the crater develops. These two effects lead to changes in the rates of decrease of ion and atomic line intensities over time. Therefore, the changes in intensities of ion lines caused by crater development differ from which of atomic lines.
authors.forename: Kuohu
authors.initials: K
authors.lastname: Li
authors.forename: Lianbo
authors.initials: L
authors.lastname: Guo
authors.forename: Xiangyou
authors.initials: X
authors.lastname: Li
authors.forename: Zhongqi
authors.initials: Z
authors.lastname: Hao
authors.forename: Jiaming
authors.initials: J
authors.lastname: Li
authors.forename: Xinyan
authors.initials: X
authors.lastname: Yang
authors.forename: Meng
authors.initials: M
authors.lastname: Shen
authors.forename: Qingdong
authors.initials: Q
authors.lastname: Zeng
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Lu
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Zeng