[8a-Z25-1~12] 【CS.1】 Code-sharing Session of 2.4 & 7.5

[8a-Z25-5] Study on laser photo detachment of negative molecular ions in accelerator mass spectrometry

〇Yasuto Miyake¹, Takeyasu Yamagata², Tomoki Tanii³, Hiroyuki Matsuzaki^2,3 (1.RIKEN Nishina Center, 2.Univ. Museum, The Univ, of Tokyo, 3.Dep. Eng. The Univ. of Tokyo)

Keywords:accelerator mass spectromegy, laser photo detachment, molecular ion

The laser photodetachment (LPD) in accelerator mass spectrometry is a method for isobar separation to neutralize negative isobar ions with laser light. When the energy of the laser is larger than the electron affinity (EA) of isobar ions, the negative ions are neutralized by the photodetachment reaction. Therefore, LPD cannot be applied to isobaric nuclides, in which EA is larger than that of target nuclides. On the other hand, there is a combination in which the EA reverses when it becomes a molecular ion, and LPD may be applicable. In this paper, we examine the possibility of applying LPD to molecular ions.