Abstract

Accepted neon standards cover the region 6929–5852A. We have observed the first spectrum of neon throughout the region 8919–3126A in order to assist in establishing secondary standards in that part of this range where none exist.

The first spectrum of natural mercury was observed from 7020 to 2200A in order to discover in what part of this range standards of suitable intensity will be available when lines emitted by Hg198 have been measured; and to find out which lines (if any) of the natural element may serve as standards when mercury is accidently or unavoidably present in a low pressure source. It is shown that some lines of natural mercury are suitable for secondary standards, and nearly all may be useful when an accuracy of no more than a part per million is required.

© 1950 Optical Society of America

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References

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  1. W. F. Meggers and C. J. Humphreys, Bur. Stand. J. Research 13, 293 (1934), RP 710.
    [CrossRef]
  2. C. J. Humphreys, J. Research Nat. Bur. Stand. 20, 24 (1938), RP 1061.
  3. K. Burns and W. F. Meggers, Pub. Allegheny Obs. 6, 105 (1925). Burns, Meggers, and Kiess, Bur. Stand. J. Research 1, 297 (1928).
    [CrossRef]
  4. W. F. Meggers and C. G. Peters, Sci. Papers Bur. Stand. 14, 697 (1918), SP 327.
  5. C. Moore, “Atomic energy levels. Vol.  I,” Circ. Nat. Bur. Stand. 467, 76 (1949).
  6. Trans, Int. Astr. Union 5, 86 (1935).
  7. W. F. Meggers, J. Opt. Soc. Am. 38, 7 (1948).
    [CrossRef] [PubMed]
  8. H. Kayser, Handbuch der Spectroscopic 7, 669 (1934).
  9. A. Pérard, Rev. d’Optique 7, 1 (1928).
  10. A. Pérard and J. Terrien, Comptes Rendus 228, 964 (1949).
  11. W. F. Meggers and K. Burns, Sci. Papers Bur. Stand. 18, 185 (1922), SP 441.
    [CrossRef]
  12. G. R. Harrison, MIT Wavelength Tables (John Wiley and Sons, Inc., New York, 1939).

1949 (2)

C. Moore, “Atomic energy levels. Vol.  I,” Circ. Nat. Bur. Stand. 467, 76 (1949).

A. Pérard and J. Terrien, Comptes Rendus 228, 964 (1949).

1948 (1)

1938 (1)

C. J. Humphreys, J. Research Nat. Bur. Stand. 20, 24 (1938), RP 1061.

1935 (1)

Trans, Int. Astr. Union 5, 86 (1935).

1934 (2)

H. Kayser, Handbuch der Spectroscopic 7, 669 (1934).

W. F. Meggers and C. J. Humphreys, Bur. Stand. J. Research 13, 293 (1934), RP 710.
[CrossRef]

1928 (1)

A. Pérard, Rev. d’Optique 7, 1 (1928).

1925 (1)

K. Burns and W. F. Meggers, Pub. Allegheny Obs. 6, 105 (1925). Burns, Meggers, and Kiess, Bur. Stand. J. Research 1, 297 (1928).
[CrossRef]

1922 (1)

W. F. Meggers and K. Burns, Sci. Papers Bur. Stand. 18, 185 (1922), SP 441.
[CrossRef]

1918 (1)

W. F. Meggers and C. G. Peters, Sci. Papers Bur. Stand. 14, 697 (1918), SP 327.

Burns, K.

K. Burns and W. F. Meggers, Pub. Allegheny Obs. 6, 105 (1925). Burns, Meggers, and Kiess, Bur. Stand. J. Research 1, 297 (1928).
[CrossRef]

W. F. Meggers and K. Burns, Sci. Papers Bur. Stand. 18, 185 (1922), SP 441.
[CrossRef]

Harrison, G. R.

G. R. Harrison, MIT Wavelength Tables (John Wiley and Sons, Inc., New York, 1939).

Humphreys, C. J.

C. J. Humphreys, J. Research Nat. Bur. Stand. 20, 24 (1938), RP 1061.

W. F. Meggers and C. J. Humphreys, Bur. Stand. J. Research 13, 293 (1934), RP 710.
[CrossRef]

Kayser, H.

H. Kayser, Handbuch der Spectroscopic 7, 669 (1934).

Meggers, W. F.

W. F. Meggers, J. Opt. Soc. Am. 38, 7 (1948).
[CrossRef] [PubMed]

W. F. Meggers and C. J. Humphreys, Bur. Stand. J. Research 13, 293 (1934), RP 710.
[CrossRef]

K. Burns and W. F. Meggers, Pub. Allegheny Obs. 6, 105 (1925). Burns, Meggers, and Kiess, Bur. Stand. J. Research 1, 297 (1928).
[CrossRef]

W. F. Meggers and K. Burns, Sci. Papers Bur. Stand. 18, 185 (1922), SP 441.
[CrossRef]

W. F. Meggers and C. G. Peters, Sci. Papers Bur. Stand. 14, 697 (1918), SP 327.

Moore, C.

C. Moore, “Atomic energy levels. Vol.  I,” Circ. Nat. Bur. Stand. 467, 76 (1949).

Pérard, A.

A. Pérard and J. Terrien, Comptes Rendus 228, 964 (1949).

A. Pérard, Rev. d’Optique 7, 1 (1928).

Peters, C. G.

W. F. Meggers and C. G. Peters, Sci. Papers Bur. Stand. 14, 697 (1918), SP 327.

Terrien, J.

A. Pérard and J. Terrien, Comptes Rendus 228, 964 (1949).

Atomic energy levels (1)

C. Moore, “Atomic energy levels. Vol.  I,” Circ. Nat. Bur. Stand. 467, 76 (1949).

Bur. Stand. J. Research (1)

W. F. Meggers and C. J. Humphreys, Bur. Stand. J. Research 13, 293 (1934), RP 710.
[CrossRef]

Comptes Rendus (1)

A. Pérard and J. Terrien, Comptes Rendus 228, 964 (1949).

Handbuch der Spectroscopic (1)

H. Kayser, Handbuch der Spectroscopic 7, 669 (1934).

J. Opt. Soc. Am. (1)

J. Research Nat. Bur. Stand. (1)

C. J. Humphreys, J. Research Nat. Bur. Stand. 20, 24 (1938), RP 1061.

Pub. Allegheny Obs. (1)

K. Burns and W. F. Meggers, Pub. Allegheny Obs. 6, 105 (1925). Burns, Meggers, and Kiess, Bur. Stand. J. Research 1, 297 (1928).
[CrossRef]

Rev. d’Optique (1)

A. Pérard, Rev. d’Optique 7, 1 (1928).

Sci. Papers Bur. Stand. (2)

W. F. Meggers and C. G. Peters, Sci. Papers Bur. Stand. 14, 697 (1918), SP 327.

W. F. Meggers and K. Burns, Sci. Papers Bur. Stand. 18, 185 (1922), SP 441.
[CrossRef]

Trans, Int. Astr. Union (1)

Trans, Int. Astr. Union 5, 86 (1935).

Other (1)

G. R. Harrison, MIT Wavelength Tables (John Wiley and Sons, Inc., New York, 1939).

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Tables (5)

Tables Icon

Table I Wave-lengths in the spectrum of neon.

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Table II Neon I levels.

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Table III Wave-lengths in the spectrum of mercury (Hg I) relative to neon standards.

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Table III-A Additional lines in the spectrum of Hg I. Various standards.

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Table IV The lower levels of Hg I.