Elsevier

Physics Letters A

Volume 151, Issues 1–2, 26 November 1990, Pages 69-71
Physics Letters A

Atomic-beam spectroscopy of n 2S12 levels (n=7, 8) in 203,205Tl

Dedicated to Professor Dr. Drs. h.c. W. Hanle on the occasion of his 90th birthday.
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Abstract

Using atomic-beam spectroscopy, we measured hyperfine splitting constants and level isotope shifts of n 2S12 levels (n=7, 8) in 203Tl and 205Tl with a frequency doubled cw-dye-laser. Our results are: A(7 2S12) = 12242.6 (1.6) MHz and A(8 2S12) = 3855.7 (3.2) MHz for hyperfine-structure (HFS) constants in 203Tl and A(7 2S12 = 12350.9 (3.9) MHz and A(8 2S12 = 3888.4 (4.3) MHz for HFS constants in 205Tl; ΔνIS(7 2S12) = +409.8 (3.6) MHz and ΔνIS(8 2S12) = + 136.0 (4.1) MHz for level isotope shifts (IS).

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