THE HYPERFINE STRUCTURE SEPARATIONS OF SOME TERMS IN THE THALLIUM II SPECTRUM

1936 ◽  
Vol 14a (7) ◽  
pp. 139-151 ◽  
Author(s):  
Stanley Smith ◽  
J. Convey
Keyword(s):  
Hyperfine Structure ◽  
Light Source ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge ◽  
Separation Factors

The hyperfine structure separations of about 25 terms of T1 II have been measured by means of two quartz and two glass Lummer plates used in conjunction with a Hilger E1 spectrograph. The light source was a hollow cathode discharge in helium. Large isotope displacements have been found in some of the terms of the 5d96s26p configuration, also in the 6p2 3P2 and 6p2 1D2 terms. The results have been used to calculate g(I) and to examine the validity of the application of the summation rules to the separation factors for the 6snd and 6snf configurations. The spacing of the system of levels arising from the 6s6f configuration has been examined.

INTERFEROMETER MEASUREMENTS OF THE HYPERFINE STRUCTURE OF SOME LINES OF SINGLY IONIZED BISMUTH

1935 ◽  
Vol 12 (5) ◽  
pp. 690-698
Author(s):  
Stanley Smith ◽  
J. S. Beggs
Keyword(s):  
Hyperfine Structure ◽  
Light Source ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge ◽  
Separation Factors ◽  
First Time

The hyperfine structure of nine lines of Bi II and one line of Bi III has been measured by means of a quartz Lummer plate and a glass Lummer plate used in conjunction with a Hilger E 1 spectrograph. The light source was a water-cooled hollow cathode discharge in helium. Of the lines investigated the hyperfine structure of some had already been resolved either totally or in part by Fisher and Goudsmit using a 21 ft. grating, but for the lines λ6808, 6600, 4272 and 4259 the hyperfine structure has been obtained for the first time. The separation factors for the terms 6p1/2 5f31/2 144 and [Formula: see text] have been found.The interaction constants of the 5f21/2, 5f31/2, and 6d21/2 electrons have been calculated.

Studies on the hyperfine structure of La I in a hollow-cathode discharge tube

1990 ◽  
Vol 23 (10) ◽  
pp. 1327-1328 ◽  
Author(s):  
L Caiyan ◽  
Qu Jianan ◽  
Zhu Lizhou ◽  
Lin Fucheng
Keyword(s):  
Hyperfine Structure ◽  
Discharge Tube ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge

Dielectric barrier hollow cathode discharge and its enhanced performance for light source

2005 ◽  
Vol 87 (26) ◽  
pp. 261502 ◽  
Author(s):  
Tae Il Lee ◽  
Ki Wan Park ◽  
Hong Koo Baik ◽  
Seong-Min Lee
Keyword(s):  
Light Source ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge ◽  
Dielectric Barrier

SPECTROSCOPIC STUDY OF SMALL SAMPLES IN A HOLLOW CATHODE DISCHARGE

1951 ◽  
Vol 29 (5) ◽  
pp. 357-361 ◽  
Author(s):  
K. B. Newbound ◽  
F. H. Fish
Keyword(s):  
Spectroscopic Study ◽  
Hyperfine Structure ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge ◽  
Small Samples ◽  
Operating Characteristics ◽  
Useful Lifetime ◽  
Principal Lines

Operating characteristics of the hollow cathode discharge have been investigated qualitatively. A sample of less than 10 μgm. of an element may be used to study the hyperfine structure of the principal lines in an exposure of a few hours. The useful lifetime of the sample in the discharge is about 10 hr., and up to 80% of the sample can be recovered after use.

Isotope shifts and hyperfine structure of Pt i transitions in a hollow-cathode discharge

1989 ◽  
Vol 6 (2) ◽  
pp. 137 ◽  
Author(s):  
Robert D. LaBelle ◽  
Rolf Engleman ◽  
Richard A. Keller ◽  
William M. Fairbank
Keyword(s):  
Hyperfine Structure ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge ◽  
Isotope Shifts

scholarly journals Hyperfine structure and nuclear moments of aluminium

1938 ◽  
Vol 164 (916) ◽  
pp. 48-61 ◽  
Keyword(s):  
Hyperfine Structure ◽  
Light Source ◽  
Hollow Cathode ◽  
Magnetic Moment ◽  
Nuclear Spin ◽  
Atomic Beam ◽  
Nuclear Moments ◽  
Cathode Tube ◽  
Hollow Cathode Tube

The structure of the resonance lines of the arc spectrum of aluminium was investigated by the method of absorption in an atomic beam, and the structure of certain other lines of aluminium, emitted by a liquid-air-cooled hollow cathode tube, was also investigated. The nuclear spin of aluminium was thus shown to be 9/2 and the magnetic moment about 4·0 nuclear magnetons. A note (Jackson and Kuhn 1937 a ) containing these results was published elsewhere. The light source and the spectroscope The arc spectrum of aluminium possesses two groups of resonance lines, 3 2 P 3/2 , ½ -4S ½ (3962 A, 3944 A) and 3 2 P 3/2 , ½ -3 2 D 5/2 , 3/2 (3092·7 A, 3092·8 A, 3082 A).

Comparison of plasma characteristics of high-power pulsed sputtering glow discharge and hollow-cathode discharge

2020 ◽  
Vol 60 (1) ◽  
pp. 015501
Author(s):  
Shoki Abe ◽  
Katsuyuki Takahashi ◽  
Seiji Mukaigawa ◽  
Koichi Takaki ◽  
Ken Yukimura
Keyword(s):  
Glow Discharge ◽  
High Power ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge ◽  
Plasma Characteristics
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