Measurement of the first ionization energy of nobelium (No, = 102)

Sato, Tetsuya ; Asai, Masato ; Kaneya, Yusuke; Tsukada, Kazuaki ; Toyoshima, Atsushi; Takeda, Shinsaku; Mitsukai, Akina*; Nagame, Yuichiro ; Ichikawa, Shinichi; Makii, Hiroyuki ; Osa, Akihiko ; Sakama, Minoru*; Oe, Kazuhiro*; Sato, Daisuke*; Schdel, M.; Kratz, J. V.; Stora, T.*

We successfully determined the first ionization energy (IE) of nobelium (No, = 102) using a short-lived No isotope, $^{257}$ No produced in the $^{248}$ Cm( $^{13}$ C, 4n) reaction, based on the IE dependence of the ionization efficiency in a surface ionization process. The IE value of No was evaluated to be 6.6 eV. This value is in a good agreement with the value which has been estimated by an extrapolation from those of the lighter actinide elements, 6.65 eV.

Language	:	Japanese
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Meeting title	:	日本化学会第95春季年会(2015)
Held date	:	2015/03
Location (city)	:	船橋
Location (country)	:	日本
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Keywords	:	アクチノイド; ノーベリウム; イオン化エネルギー; オンライン同位体分離器
Research Facility	:	タンデム加速器
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Registration No. : BB20143265
JAEA Abstracts No. :
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