[2D07-11] Spectroscopic and Mass Analysis

[2D07] Multi-Step Laser Ionisation Scheme with J=0-1-0 Optical Selection for High Selectivity Ionisation of Odd-Ca Isotopes

*Stephen Robert Wells¹, Masabumi Miyabe², Yoshihiro Iwata¹, Fumiko Yoshida¹, Shuichi Hasegawa¹ (1. Univ. Tokyo, 2. CLADS, JAEA)

Keywords:resonance ionization, polarization optical selection rules, calcium, laser, waste analysis

Ca-41 presents a difficulty for decommissioning nuclear waste due to its long half-life (1.04x10^5 years) and unusual decay pathway (EC to K-41 followed by X-ray release). Here, we report progress on a three-laser-step resonance ionization technique, coupled with polarisation based optical selection rule manipulation, intended to produce odd-isotope optical selectivities greater than previously reported.