EPJ Web of Conferences (Mar 2014)

An effective method for trapping ion beams in superfluid helium for laser spectroscopy experiments

  • Yang X.F,
  • Furukawa T.,
  • Wakui T.,
  • Imamura K.,
  • Fujita H.,
  • Mitsuya Y.,
  • Hayasaka M.,
  • Ichikawa Y.,
  • Ishibashi Y.,
  • Shirai H.,
  • Ebara Y.,
  • Hatakeyama A.,
  • Wada M.,
  • Sonoda T.,
  • Ito T.,
  • Kobayashi T.,
  • Nishimura S.,
  • Nishimura M.,
  • Kondo Y.,
  • Yoneda K.,
  • Ueno H.,
  • Shinozuka T.,
  • Shimoda T.,
  • Asahi K.,
  • Matsuo Y.

DOI
https://doi.org/10.1051/epjconf/20146611041
Journal volume & issue
Vol. 66
p. 11041

Abstract

Read online

A novel laser spectroscopy technique -“OROCHI” (Optical Radioisotopes Observation in Condensed Helium as Ion-catcher) has been proposed. This method aimed to investigate the structure of exotic nuclei systematically by measuring nuclear spins and moments. For in-situ laser spectroscopy of atoms in He II, a method to trap atoms precisely at the observation region of laser is highly needed. In this work, a setup composed of a degrader, two plastic scintillators and a photon detection system is further tested and verified for adjusting and checking the stopping position of 84–87Rb beam. Details of the current setup, experimental results using this method are presented.