11:00 〜 11:15
▼ [14a-D209-8] Development of Ion Trap and Laser Cooling Apparatus for 41Ca+ Spectroscopy
キーワード：Ion trap, laser cooling, calcium 41
Ion trapping is a valuable method for high-precision spectroscopy since cooling the ions to motional temperatures near absolute zero extinguishes the temperature dependent effect of Doppler broadening. has unusual decay pathway (EC, followed by X-ray release) and long halflife, making it valuable for radiometric dating, cosmological studies and biomedical tracing techniques. The main limitation is the low abundance, meaning high-selectivity techniques utilizing atomic structure e.g. RIS is ideal. Here we report progress on experiments in ion trapping of for high-precision spectroscopy, to investigate the isotope shift (relative to the majority abundance isotope) and the hyperfine structure. An ICP-MS system acts as the sample introduction/ionization and mass selection stage, with Ca ions then laser cooled by an all-ECDL laser system before trapping in a linear Paul trap. Spectroscopy is performed through scanning of the cooling/repumping laser frequencies.