Zur hyperfeinstruktur-anomalie der stabilen Re-isotope

Krause, H. F.; Krebs, K.; Winkler, R.

doi:10.1016/0031-9163(65)90166-6

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…The hfs of the two stable isotopes lSSRe (37~o natural abundance, nuclear spin I=5/2) and 187Re (63 ~o, I =5/2) has been studied optically by several authors [3][4][5][6][7] yielding rough values for the nuclear electric quadrupole moments and for the hyperfine anomaly of the two isotopes. From high resolution nuclear quadrupole resonance (NQR) experiments Segel [8] and Lutz [9] obtained the quadrupole moment ratio of 185Re to ~STRe.…”

Section: Introductionmentioning

confidence: 99%

High precision hyperfine structure measurements in185Re and187Re

Büttgenbach

Dicke

Gölz³

et al. 1981

Z Physik A

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The hyperfine structure of the atomic levels 5d56s26Ss/2 and 4P5/2 in ~SSRe and ~STRe has been studied with high precision by atomic-beam magnetic-resonance. Additional measurements were performed in the 5d56s 2 4G5/2 and 5d66s('D9/2 states of ~SVRe. For the interpretation of the results eigenvectors in intermediate coupling have been derived by a least squares fit of all known levels of the configurations (5d+6s) 7.The ratio B(85Re)/B(~87Re) is the same for the 6S5/2 and the 4P5/2 state within the error limits of 6 parts in 105. Combining the present results with the known hyperfine structure data of 186Re and ~88Re we find the magnetic-dipole hyperfine anomalies for the isotopic series ~85 ~88Re

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Section: Introductionmentioning

confidence: 99%

High precision hyperfine structure measurements in185Re and187Re

Büttgenbach

Dicke

Gölz³

et al. 1981

Z Physik A

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“…In Table 1 The results for the hfs constants A and B of the levels investigated are compiled for the isotope ~85Re in Table 2. Since the hfs-anomaly is small, 18SA187<0.03% [16], the ratios for the constants A and B were fixed in the computer fits to A(~SSRe)/A(~SYRe)=0.9902 and B(18SRe)/B(187Re)=l.0567 [17]. The comparison between our new hfs values with those of Btirger et al [17] and values from our previous studies [6,8,9] demonstrate in most cases a good consistancy.…”

Section: Resultsmentioning

confidence: 60%

Isotope shifts for the 5d 56s7s and 5d 56s6d configurations of Re I

Kronfieldt

Ashkenasi

Başar

et al. 1993

Z Phys D - Atoms, Molecules and Clusters

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Abstract. The isotope shift and hyperfine structure in a rhenium hollow cathode discharge was studied for transitions of the type 5d56s7s-~5d56s6p and 5d56s6d 5 d 5 6 s 6p through Doppler-free saturation absorption laserspectroscopy and high resolution interferometry. Taking configuration mixing in the lower levels of 5d 5 6s 6p under consideration, we obtain average configuration isotope shift values for 5d56s7s of -1760(100) MHz and for 5d 5 6s 6d of -1930(200) MHz. These experimental values compare extremely well with the theoretically predicted configuration isotope shifts in rhenium, based on pseudo-relativistic Hartree-Fock calculations, of -1710 MHz and -I940 MHz, resp. In addition hyperfine structure constants for rhenium levels of 5 d 5 6 s 6 d are reported here for the first time.

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Zur hyperfeinstruktur-anomalie der stabilen Re-isotope

Cited by 2 publications

References 8 publications

High precision hyperfine structure measurements in185Re and187Re

High precision hyperfine structure measurements in185Re and187Re

Isotope shifts for the 5d 56s7s and 5d 56s6d configurations of Re I

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