Laser-stimulated two-step recombination of highly charged ions and electrons in a storage ring
Abstract
Two-step resonant laser-stimulated recombination of highly charged ions was performed for the first time. Nd:YAG laser pulses overlapped with an Ar18+ beam in the electron cooler of the ESR storage ring at GSI induced transitions from the continuum to the n=81 state of hydrogenlike Ar17+. To avoid reionization in the bending magnet before reaching the detector, the n=81 population was transferred to a state well below the reionization threshold by a Ti:sapphire laser. Tuning of this laser yielded the n=81 to 36 and 37 transition-line profiles. The two-step method provides access to detailed Rydberg spectroscopy in an electron beam environment.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 1994
- DOI:
- 10.1103/PhysRevLett.72.207
- Bibcode:
- 1994PhRvL..72..207B
- Keywords:
-
- 34.80.Kw;
- 29.20.Dh;
- 32.80.Wr;
- 52.40.Nk;
- Electron-ion scattering;
- excitation and ionization;
- Storage rings;
- Other multiphoton processes