Zur Hyperfeinstruktur des Ytterbiums

Krebs, K.; Nelkowski, H.

doi:10.1002/andp.19544500207

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…18 -19 The § -[512J designation has been proposed for the 103rd neutron in the ground states of Er 17119 and Yb 173 . 15,20,21 The Yb 172 level at 1.174 Mev, which has been pre- …”

Section: Discussion Of Thulium-172 Resultsmentioning

confidence: 99%

Decay ofEr172andTm172

Orth

Dropesky

1961

Phys. Rev.

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Er 172 has been produced by double neutron capture in enriched Er 170 . The beta decay of 50.4-hr Er 172 and its daughter, 63.7-hr Tm 172 , has been studied with a solenoidal beta spectrometer and beta and gamma scintillation spectrometers. The highest energy group of the Tm 172 beta spectrum has an end-point energy of 1.83 Mev; this group represents the Tm 172 -> Yb 172 ground-state beta transition. The beta decay of Tm 172 is accompanied by gamma rays of the following energies: 0.079, 0.180, 0.422, 0.495, 0.915, 1.095, 1.29, 1.39, 1.41, 1.47, 1.51, and 1.59 Mev. A decay scheme for Tm 172 is proposed with excited states in Yb 172 at 0.079, 0.259, 1.174, 1.47, 1.55, 1.59, and 1.67 Mev. The beta decay of Er 172 is accompanied by gamma rays of the following energies: 0.050 (Tm K x ray), 0.108, 0.126, 0.408, and 0.610 Mev, the last of which represents a transition to the Tm 172 ground state. The beta spectrum measured in coincidence with the 0.610-Mev gamma ray has an end-point energy of ^0.26 Mev, which establishes a decay energy of 0.87 Mev for Er 172 .

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“…18 -19 The § -[512J designation has been proposed for the 103rd neutron in the ground states of Er 17119 and Yb 173 . 15,20,21 The Yb 172 level at 1.174 Mev, which has been pre- …”

Section: Discussion Of Thulium-172 Resultsmentioning

confidence: 99%

Decay ofEr172andTm172

Orth

Dropesky

1961

Phys. Rev.

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“…Only a selection of the recent papers on hyperfine structure will be mentioned here. The hyperfine structure of Yb 6489 A. confirms 1 = 5/2 (h/2 ) for 70Yb473, which does not fit the shell model of nuclear structure (56). From the hyperfine structure of the resonance line (3694 A.)…”

Section: Hyper Fine Structurementioning

confidence: 86%

“…During its ninth general assembly the International Astronomical Union adopted (92) 30 neon wave-length standards (5400.5617 to 8082.4581 A. ), 56 argon standards (3947.5047 to 9784.5020 A. ), and 31 krypton standards (4273.9703 to 6456.2910 A.).…”

mentioning

confidence: 99%