Adsorption of Lawrencium (Z = 103) on a tantalum surface

Tomitsuka, Tomohiro; Kaneya, Yusuke*; Sato, Tetsuya   ; Asai, Masato  ; Tsukada, Kazuaki  ; Toyoshima, Atsushi; Mitsukai, Akina; Osa, Akihiko  ; Nishio, Katsuhisa   ; Nagame, Yuichiro ; Oe, Kazuhiro*; Sakama, Minoru*; Miyashita, Sunao*; Shibata, Michihiro*; Kasamatsu, Yoshitaka*; Eichler, R.*; Dllmann, Ch. E.*; Trautmann, N.*; Kratz, J. V.*; Schdel, M.*

In order to investigate the adsorption behavior of Lawrencium (Lr, Z = 103) on a Tantalum (Ta) surface, we measured ionization efficiencies of Lr under several temperature conditions of the surface ionization. We observed ionization efficiencies of Lr which were lower than those calculated by the Saha-Langmuir equation in lower temperature region. Based on a temperature dependence of the obtained ionization efficiencies, we discuss the adsorption behavior of Lr on the Ta surface.