Hyperfine spectra of the radioactive isotopes [sup 81]Kr and [sup 85]Kr

Journal Article · Sun Jan 31 23:00:00 EST 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.47.1148· OSTI ID:6748891

Cannon, B D ^[1]

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1. Pacific Northwest Laboratory, MS P8-08, P.O. Box 999, Richland, Washington 99352 (United States)

Isotope shifts and hyperfine constants are reported for the radioactive isotopes [sup 81]Kr and [sup 85]Kr and the stable isotope [sup 83]Kr. The previously unreported nuclear moments of [sup 81]Kr were determined to be [mu][sub [ital I]]=[minus]0.909(4) nuclear magneton and [ital Q]=+0.630(13) b from the hyperfine constants. This work increases the number of transitions for which [sup 85]Kr hyperfine constants and isotope shifts have been measured from 1 to 4. The hyperfine anomaly for krypton reported in the previous measurement of [sup 85]Kr hyperfine constants [H. Gerhardt [ital et] [ital al]., Hyperfine Interact. 9, 175 (1981)] is not supported by this work. The isotope shifts and hyperfine constants of [sup 83]Kr measured in this work are in excellent agreement with previous work. Saturation spectroscopy was used to study transitions from krypton's metastable 1[ital s][sub 5] state to the 2[ital p][sub 9], 2[ital p][sub 7], and 2[ital p][sub 6] states. In saturation spectra, different line shapes were observed for the even- and odd-mass krypton isotopes. This even- versus odd-line-mass shape difference can be explained using the large cross section that has been reported for collisional transfer of the 1[ital s][sub 5] state excitation between krypton atoms. Two-color two-photon laser-induced fluorescence was used to measure the hyperfine spectra of the 1[ital s][sub 5-]4[ital d][sub 4][sup [prime]] transition using the 2[ital p][sub 9] state as the intermediate state. This technique proved to be more sensitive than saturation spectroscopy.

• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6748891
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 47:2; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELECTRONIC STRUCTURE
EMISSION SPECTROSCOPY
EVEN-ODD NUCLEI
FLUORESCENCE SPECTROSCOPY
HOURS LIVING RADIOISOTOPES
HYPERFINE STRUCTURE
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPE EFFECTS
ISOTOPES
KRYPTON 81
KRYPTON 83
KRYPTON 85
KRYPTON ISOTOPES
MAGNETIC MOMENTS
MATERIALS
MICROSEC LIVING RADIOISOTOPES
NUCLEAR MAGNETIC MOMENTS
NUCLEAR PROPERTIES
NUCLEI
RADIOACTIVE MATERIALS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SPECTROSCOPY
STABLE ISOTOPES
YEARS LIVING RADIOISOTOPES