On-line hyperfine structure and isotope shift measurements with diffuse light collection and photon burst detection

Journal Article · Wed Jan 15 04:00:00 EST 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.52199· OSTI ID:21165684

Lassen, Jens; Benck, Eric C; Schuessler, Hans A ^[1]

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1. Department of Physics, Texas A and M University, College Station, Texas 77843-4242 (United States)

An experiment is presently being set up which combines collinear-fast-beam laser spectroscopy with photon burst spectroscopy. Selectivity is provided by the large kinetic isotope shifts together with the practically Doppler free linewidth of the fluorescence from the fast atom beam. The photon burst detection, based on photon correlations in the resonance fluorescence, increases the sensitivity, so that on-line optical isotope shift and hyperfine structure measurements on low intensity radioactive beams become feasible. In order to improve photon burst detection the solid angle of detection and the observation time have to be optimized. To this end a diffuse reflecting cavity has been designed and built, which collects fluorescence over a 45 cm length of the beam and covers the full solid angle. The light collection efficiency of the cavity is calculated to be about 45%. The cavity is being tested with a 11 keV beam of krypton atoms, probing the near infrared transitions in our apparatus at Texas A and M University.

• OSTI ID: 21165684
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 388; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CORRELATIONS
DETECTION
EFFICIENCY
HYPERFINE STRUCTURE
KEV RANGE
KRYPTON
LASER SPECTROSCOPY
LINE WIDTHS
PHOTONS
RESONANCE FLUORESCENCE
SENSITIVITY
SPECTRAL SHIFT
VISIBLE RADIATION