The wavelengths of 245 atomic emission lines, mainly C, N, and O, and commonly occurring as impurities in conventional light sources, have been measured from 875 A to 1940 A in the first order of a 21-ft vacuum grating spectrograph with a dispersion of 1.3 A per mm. Cu ii, Fe i, and Fe ii lines, whose wavelengths can be calculated accurately by the combination principle, were used as standards. The present work expands the number of previously known vacuum ultraviolet provisional standards and places them on a consistent wavelength scale with an average internal error of ±0.003 A, and an absolute error of less than ±0.005 A.
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
K. R. More and C. A. Rieke, Phys. Rev. 50, 1054 (1936).
J. C. Boyce and C. A. Rieke, Phys. Rev. 47, 653 (1935).
R. L. Weber and W. W. Watson, J. Opt. Soc. Am. 26, 307 (1936).
A. Fowler, Proc. Roy. Soc. (London) A123, 422 (1929).
A. G. Shenstone, Phys. Rev. 72, 411 (1947).
E. Ekefors: Z. Physik 63, 437 (1930).
B. Edlén, ibid. 98, 561 (1936); Nature 159, 129 (1947).
F. Paschen and G. Kruger, Ann. phys. 7, 1 (1930).
Table IV
Wavelength comparison of certain atomic lines of H and He ii with theoretical calculations.a
See reference 3. Unpublished material of J. E. Mack.
Unresolved doublet.
Doublet unresolved apparently because the long wavelength component is much stronger.
Table V
Ground-state intervals of C i (2p2 3P) calculated from various multiplets.
K. R. More and C. A. Rieke, Phys. Rev. 50, 1054 (1936).
J. C. Boyce and C. A. Rieke, Phys. Rev. 47, 653 (1935).
R. L. Weber and W. W. Watson, J. Opt. Soc. Am. 26, 307 (1936).
A. Fowler, Proc. Roy. Soc. (London) A123, 422 (1929).
A. G. Shenstone, Phys. Rev. 72, 411 (1947).
E. Ekefors: Z. Physik 63, 437 (1930).
B. Edlén, ibid. 98, 561 (1936); Nature 159, 129 (1947).
F. Paschen and G. Kruger, Ann. phys. 7, 1 (1930).
Table IV
Wavelength comparison of certain atomic lines of H and He ii with theoretical calculations.a
See reference 3. Unpublished material of J. E. Mack.
Unresolved doublet.
Doublet unresolved apparently because the long wavelength component is much stronger.
Table V
Ground-state intervals of C i (2p2 3P) calculated from various multiplets.