Abstract

A low voltage hydrogen discharge tube giving an intense continuous spectrum in the ultraviolet is described. The variation of the intensity of the continuum with pressure, current and discharge voltage has been determined. For a given power consumption 220 volts was found to be more efficient in exciting the continuum than 1200 volts. The hot cathode made it possible to maintain discharges at much higher pressures with 1200 volts than was possible with a cold cathode.

The manner in which the relative intensities of the continuum, secondary and series spectra of hydrogen vary with pressure and discharge voltage, indicates that they are largely excited by electron impact rather than by recombination.

© 1936 Optical Society of America

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References

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    [CrossRef]
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    [CrossRef]

1935 (1)

R. D. Fowler, Rev. Sci. Inst. 6, 26 (1935).
[CrossRef]

1932 (3)

Urey, Murphy, and Duncan, Rev. Sci. Inst. 3, 497 (1932).
[CrossRef]

Langmuir, J. Frank. Inst. 214, 275 (1932).
[CrossRef]

MacDonald, Proc. Roy. Soc. A136, 528 (1932).
[CrossRef]

1931 (2)

Finkelnburg and Weizel, Zeits. f. Physik 68, 577 (1931).
[CrossRef]

G. B. Kistiakowsky, Rev. Sci. Inst. 2, 549 (1931).
[CrossRef]

1930 (1)

Lawrence and Edlefson, Rev. Sci. Inst. 1, 45 (1930).
[CrossRef]

1928 (2)

Winans and Stueckelberg, Proc. Nat. Acad. Sci. 14, 867 (1928).
[CrossRef]

Found and Furney, Trans. Am. Inst. Elec. Eng. 47, 4 (1928).
[CrossRef]

1924 (2)

Compton, Turner, and McCurdy, Phys. Rev. 37, 597 (1924).
[CrossRef]

Lemon, Nature 113, 127 (1924).
[CrossRef]

1923 (1)

Freeman, Astrophys. J. 64, 122 (1923).
[CrossRef]

Compton,

Compton, Turner, and McCurdy, Phys. Rev. 37, 597 (1924).
[CrossRef]

Duncan,

Urey, Murphy, and Duncan, Rev. Sci. Inst. 3, 497 (1932).
[CrossRef]

Edlefson,

Lawrence and Edlefson, Rev. Sci. Inst. 1, 45 (1930).
[CrossRef]

Finkelnburg,

Finkelnburg and Weizel, Zeits. f. Physik 68, 577 (1931).
[CrossRef]

Found,

Found and Furney, Trans. Am. Inst. Elec. Eng. 47, 4 (1928).
[CrossRef]

Fowler, R. D.

R. D. Fowler, Rev. Sci. Inst. 6, 26 (1935).
[CrossRef]

Freeman,

Freeman, Astrophys. J. 64, 122 (1923).
[CrossRef]

Furney,

Found and Furney, Trans. Am. Inst. Elec. Eng. 47, 4 (1928).
[CrossRef]

Kistiakowsky, G. B.

G. B. Kistiakowsky, Rev. Sci. Inst. 2, 549 (1931).
[CrossRef]

Langmuir,

Langmuir, J. Frank. Inst. 214, 275 (1932).
[CrossRef]

Lawrence,

Lawrence and Edlefson, Rev. Sci. Inst. 1, 45 (1930).
[CrossRef]

Lemon,

Lemon, Nature 113, 127 (1924).
[CrossRef]

MacDonald,

MacDonald, Proc. Roy. Soc. A136, 528 (1932).
[CrossRef]

McCurdy,

Compton, Turner, and McCurdy, Phys. Rev. 37, 597 (1924).
[CrossRef]

Murphy,

Urey, Murphy, and Duncan, Rev. Sci. Inst. 3, 497 (1932).
[CrossRef]

Stueckelberg,

Winans and Stueckelberg, Proc. Nat. Acad. Sci. 14, 867 (1928).
[CrossRef]

Thompson, J. J.

J. J. Thompson, Conduction of Electricity Through Gases, third edition (Cambridge University Press), p. 338.

Turner,

Compton, Turner, and McCurdy, Phys. Rev. 37, 597 (1924).
[CrossRef]

Urey,

Urey, Murphy, and Duncan, Rev. Sci. Inst. 3, 497 (1932).
[CrossRef]

Weizel,

Finkelnburg and Weizel, Zeits. f. Physik 68, 577 (1931).
[CrossRef]

Winans,

Winans and Stueckelberg, Proc. Nat. Acad. Sci. 14, 867 (1928).
[CrossRef]

Astrophys. J. (1)

Freeman, Astrophys. J. 64, 122 (1923).
[CrossRef]

J. Frank. Inst. (1)

Langmuir, J. Frank. Inst. 214, 275 (1932).
[CrossRef]

Nature (1)

Lemon, Nature 113, 127 (1924).
[CrossRef]

Phys. Rev. (1)

Compton, Turner, and McCurdy, Phys. Rev. 37, 597 (1924).
[CrossRef]

Proc. Nat. Acad. Sci. (1)

Winans and Stueckelberg, Proc. Nat. Acad. Sci. 14, 867 (1928).
[CrossRef]

Proc. Roy. Soc. (1)

MacDonald, Proc. Roy. Soc. A136, 528 (1932).
[CrossRef]

Rev. Sci. Inst. (4)

Lawrence and Edlefson, Rev. Sci. Inst. 1, 45 (1930).
[CrossRef]

G. B. Kistiakowsky, Rev. Sci. Inst. 2, 549 (1931).
[CrossRef]

Urey, Murphy, and Duncan, Rev. Sci. Inst. 3, 497 (1932).
[CrossRef]

R. D. Fowler, Rev. Sci. Inst. 6, 26 (1935).
[CrossRef]

Trans. Am. Inst. Elec. Eng. (1)

Found and Furney, Trans. Am. Inst. Elec. Eng. 47, 4 (1928).
[CrossRef]

Zeits. f. Physik (1)

Finkelnburg and Weizel, Zeits. f. Physik 68, 577 (1931).
[CrossRef]

Other (1)

J. J. Thompson, Conduction of Electricity Through Gases, third edition (Cambridge University Press), p. 338.

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Figures (3)

F. 1
F. 1

The energy functions of the 12 3Σg and 12 3Σu states of the hydrogen molecule (after Finkelnburg and Weizel).

F. 2
F. 2

Diagram of the apparatus.

F. 3
F. 3

Photograph of the continua produced under various conditions.

Tables (3)