First g-factor measurement using a radioactive {sup 76}Kr beam

Journal Article · Tue Apr 13 04:00:00 EDT 2004 · Physics Letters B

DOI:https://doi.org/10.1016/j.physletb.2004.04.040· OSTI ID:835440

Kumbartzki, G ^[1]; Cooper, J R; Benczer-Koller, N; Hiles, K; Mertzimekis, T J; Taylor, M J; Speidel, K -H; Maier-Komor, P; Bernstein, L; McMahan, M A; Phair, L; Powell, J; Wutte, D

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1. LBNL Library

The g-factor of the first 2+ state of radioactive 76Kr (T1/2 = 14.8 h) has been measured, extending the systematics of the previously measured stable 78,80,82,84,86Kr isotopes. The measurement was performed with a radioactive 76Kr ion beam applying projectile Coulomb excitation in inverse kinematics combined with the transient magnetic field technique. The 76Kr beam was produced and accelerated in batch mode (re-cyclotron) method at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. A total of three production and acceleration cycles yielded six hours of beam on target with peak rates of 108 particles/sec. About 5.6 x 104 particle-gamma coincidence events were recorded. The g-factor g(76Ke;21+) = +0.37(11) was obtained by direct comparison to the known g(78Kr;21+) value re-measured immediately after the 76Kr runs with the same setup and under almost identical kinematic conditions.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 835440
• Report Number(s): LBNL--55196
• Journal Information: Physics Letters B, Journal Name: Physics Letters B Journal Issue: 3-4 Vol. 591
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COULOMB EXCITATION
ION BEAMS
KRYPTON 76
LANDE FACTOR
PARTICLE KINEMATICS