Isotope shifts and hyperfine structure in the atomic spectrum of cadmium

1956 ◽  
Vol 237 (1211) ◽  
pp. 485-495 ◽  
Keyword(s):  
Hyperfine Structure ◽  
Shell Structure ◽  
Neutron Number ◽  
Nuclear Deformation ◽  
Atomic Spectrum ◽  
Isotope Shifts ◽  
Fabry Perot

The isotope shifts in the spark line λ 4416 of cadmium (4 d 10 5 p 2 P 3/2 ─4 d 9 5 8 2 2 D 3/2 ) are accurately measured by means of single and double Fabry─Perot etalons and with the use of electromagnetically enriched isotopes. The shifts between successive even isotopes are found to decrease with increasing neutron number in an irregular manner. Accurate values are obtained for the odd-even and odd-odd shifts in λ 4416; this involved the study of the h. f. s. of the lines λ 3250 and λ 3535. Pronounced odd-even staggering is found. Some conclusions on the change of nuclear deformation with neutron number are drawn and possible connexions with shell structure discussed.

Isotope shift and hyperfine structure in the atomic spectrum of tin

1973 ◽  
Vol 332 (1588) ◽  
pp. 129-138 ◽  
Keyword(s):  
Stable Isotopes ◽  
Hyperfine Structure ◽  
Nuclear Charge ◽  
Light Sources ◽  
Atomic Spectrum ◽  
Nuclear Charge Distribution ◽  
Fabry Perot ◽  
Self Consistent ◽  
Structure Constants ◽  
Good Agreement

Three lines in the atomic spectrum of tin, λ 3262 Å, λ 3283 Å and λ 6454Å have been studied in emission under high resolution with the use of light sources containing enriched isotopic samples. Results are reported for isotope shifts in these lines for the abundant stable isotopes ( A ≽ 116). Pressure-scanned Fabry–Perot etalons provided the necessary resolution; the spectrograms for λ 6454 Å were recorded and analysed by digital techniques, and for this line hyperfine structure constants required in the interpretation of the data were also evaluated. The results for the three lines are not in good agreement with earlier work, but are shown to be self-consistent by means of a King plot. Their interpretation in terms of the nuclear charge distribution is considered in the following paper.

Isotope shifts and hyperfine structure in the atomic spectrum of platinum

1971 ◽  
Vol 322 (1550) ◽  
pp. 301-311 ◽  
Keyword(s):  
High Resolution ◽  
Nuclear Deformation ◽  
Mean Square ◽  
Specific Mass ◽  
Atomic Spectrum ◽  
Isotope Shifts ◽  
Mass Effects ◽  
Relative Field ◽  
Normal Mass ◽  
The Mean

Two lines in the arc spectrum of platinum have been studied by high resolution interferometry, and results have been obtained for the isotope shifts in both lines. No evidence is found for large specific mass effects and, after allowance for normal mass effects, the results for the two lines give the following relative field isotope shifts: 192-194: 194-196: 196-198 = 0.895 ± 0.009: 0.919 ± 0.004:1 and 194-195: 194-196 = 0.458 ± 0.003; these values are compared with the relative isotope shifts in mercury and thallium. Differences in the mean square radius of the proton distribution for the platinum isotopes are calculated from the field isotope shifts. The contribution of changes in nuclear deformation to the shifts is discussed.

Isotope shifts and hyperfine structure in the optical spectrum of platinum

1974 ◽  
Vol 341 (1626) ◽  
pp. 399-406 ◽  
Keyword(s):  
High Resolution ◽  
Hyperfine Structure ◽  
Optical Spectrum ◽  
Optical Measurements ◽  
Nuclear Deformation ◽  
Digital Recording ◽  
Mean Square ◽  
Isotope Shifts ◽  
Proton Distribution ◽  
Hyperfine Splittings

The lines λ 444.2nm, λ 304.2nm and λ 306.5nm of the arc spectrum of platinum have been studied under high resolution by using digital recording interferometry. The work extends the range of nuclei for which isotope shifts have been measured to include 190 Pt, and has provided some improvement in accuracy for the shifts involving other isotopes. Data are now available for all the stable platinum nuclei; the relative shifts, which are closely proportional to the changes in mean square radius of the proton distribution, are as follows: 190, 192; 0.905 ± 0.028.192, 194; 0.969 ± 0.007. 194, 195; 0.456 ± 0.004. 194, 196; 1.0. 196, 198; 1.084 ± 0.004. The data are discussed in terms of recent measurements of nuclear deformation in platinum. The hyperfine splittings of some levels have also been deduced from the optical measurements.

Isotope shift and hyperfine structure in the spectrum of tellurium

1961 ◽  
Vol 265 (1320) ◽  
pp. 39-45 ◽  
Keyword(s):  
Stable Isotopes ◽  
Hyperfine Structure ◽  
Isotope Shift ◽  
Magnetic Moments ◽  
Reference Line ◽  
Nuclear Deformation ◽  
Nuclear Magnetic Moments ◽  
Fabry Perot ◽  
Limits Of Error ◽  
Hyperfine Structures

With the use of enriched samples of the stable isotopes of tellurium, the isotope shifts in the spark line 4049 A were studied. Fabry-Perot fringes due to this line were measured against a mercury reference line; also the hyperline structures of the odd isotopes were measured. The shifts in the even isotopes are com pared with those in adjacent elements and discussed in term s of nuclear deformation. The odd-even staggering was found to be extremely large in tellurium . The ratio of the widths of the hyperfine structures of the isotopes 123 and 125 agrees, within the experimental limits of error of about 1 %, with the ratio of the nuclear magnetic moments.

Isotope shifts in the atomic spectrum of xenon and nuclear deformation effects

1974 ◽  
Vol 270 (2) ◽  
pp. 113-120 ◽  
Author(s):  
W. Fischer ◽  
H. Hühnermann ◽  
G. Krömer ◽  
H. J. Schäfer
Keyword(s):  
Nuclear Deformation ◽  
Atomic Spectrum ◽  
Isotope Shifts

Hyperfine Structure and Isotope Shifts of Rydberg States in Alkaline Earth Atoms

1983 ◽  
pp. 543-564 ◽  
Author(s):  
E. Matthias ◽  
H. Rinneberg ◽  
R. Beigang ◽  
A. Timmermann ◽  
J. Neukammer ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Alkaline Earth ◽  
Rydberg States ◽  
Isotope Shifts

Isotope shifts in the NdI spectrum

1964 ◽  
Vol 277 (1371) ◽  
pp. 540-548 ◽  
Keyword(s):  
Hollow Cathode ◽  
Isotope Shifts ◽  
Photoelectric Detector ◽  
Cathode Tube ◽  
Fabry Perot ◽  
Hollow Cathode Tube

Isotope shifts in about fifty lines of the Nd I spectrum emitted by a hollow cathode tube, in the region 5200 to 6000 Å, have been recorded on a Fabry-Perot spectrometer equipped with a photoelectric detector. The results are used to examine the existing classification of the spectrum . The structure of the line 5525-7 Å suggests the inversion of the odd-even staggering phenomenon for 143 Nd.

Isotope shift and hyperfine structure in the atomic spectrum of hafnium by laser spectroscopy

1994 ◽  
Vol 50 (2) ◽  
pp. 1112-1120 ◽  
Author(s):  
D. Zimmermann ◽  
P. Baumann ◽  
D. Kuszner ◽  
A. Werner
Keyword(s):  
Hyperfine Structure ◽  
Laser Spectroscopy ◽  
Isotope Shift ◽  
Atomic Spectrum
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