Abstract

We have measured the spectral distribution, intensity, and excitation temperature of pulsed discharges in sodium and thallium iodide vapors with mercury or argon. Peak plasma temperatures are in the neighborhood of 10 000°K. Both peak intensity and peak plasma temperature increase less than linearly as functions of energy input at energies over 5 J/cm3 of arc tube volume. In comparison with continuous operation, both the mercury spectrum and a continuum are enhanced relative to the iodide spectrum in pulsed NaI–Hg and TlI–Hg arcs, and the Na or Tl and Hg lines become strongly broadened. The radiant output of Na or Tl in iodide–argon pulsed arcs is limited by lack of significant line broadening.

© 1964 Optical Society of America

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References

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  1. G. H. Reiling, J. Opt. Soc. Am. 54, 532 (1964).
    [CrossRef]
  2. T. H. Rautenberg and P. D. Johnson, Appl. Opt. 3, 487 (1964).
    [CrossRef]
  3. D. A. Larson, H. D. Fraser, N. V. Cushing, and M. C. Unglert, Ilium. Engr. 58, 434 (1963).
  4. E. C. Martt, L. J. Smialek, and A. C. Green, Illum. Engr. 59, 34 (1964).
  5. M. P. Vanyukov and A. A. Mak, Usp. Fiz. Nauk 66, 301 (1958)[English transl.: Soviet Phys.—Usp. 66, 137 (1958)].
  6. H. Meier, Z. Physik 149, 40 (1957).
    [CrossRef]
  7. H. Bartels and R. Beuchelt, Z. Physik 149, 608 (1957).
    [CrossRef]
  8. E. Weinberg, Science 144, 432 (1964).
    [CrossRef] [PubMed]

1964 (4)

E. C. Martt, L. J. Smialek, and A. C. Green, Illum. Engr. 59, 34 (1964).

G. H. Reiling, J. Opt. Soc. Am. 54, 532 (1964).
[CrossRef]

T. H. Rautenberg and P. D. Johnson, Appl. Opt. 3, 487 (1964).
[CrossRef]

E. Weinberg, Science 144, 432 (1964).
[CrossRef] [PubMed]

1963 (1)

D. A. Larson, H. D. Fraser, N. V. Cushing, and M. C. Unglert, Ilium. Engr. 58, 434 (1963).

1958 (1)

M. P. Vanyukov and A. A. Mak, Usp. Fiz. Nauk 66, 301 (1958)[English transl.: Soviet Phys.—Usp. 66, 137 (1958)].

1957 (2)

H. Meier, Z. Physik 149, 40 (1957).
[CrossRef]

H. Bartels and R. Beuchelt, Z. Physik 149, 608 (1957).
[CrossRef]

Bartels, H.

H. Bartels and R. Beuchelt, Z. Physik 149, 608 (1957).
[CrossRef]

Beuchelt, R.

H. Bartels and R. Beuchelt, Z. Physik 149, 608 (1957).
[CrossRef]

Cushing, N. V.

D. A. Larson, H. D. Fraser, N. V. Cushing, and M. C. Unglert, Ilium. Engr. 58, 434 (1963).

Fraser, H. D.

D. A. Larson, H. D. Fraser, N. V. Cushing, and M. C. Unglert, Ilium. Engr. 58, 434 (1963).

Green, A. C.

E. C. Martt, L. J. Smialek, and A. C. Green, Illum. Engr. 59, 34 (1964).

Johnson, P. D.

Larson, D. A.

D. A. Larson, H. D. Fraser, N. V. Cushing, and M. C. Unglert, Ilium. Engr. 58, 434 (1963).

Mak, A. A.

M. P. Vanyukov and A. A. Mak, Usp. Fiz. Nauk 66, 301 (1958)[English transl.: Soviet Phys.—Usp. 66, 137 (1958)].

Martt, E. C.

E. C. Martt, L. J. Smialek, and A. C. Green, Illum. Engr. 59, 34 (1964).

Meier, H.

H. Meier, Z. Physik 149, 40 (1957).
[CrossRef]

Rautenberg, T. H.

Reiling, G. H.

Smialek, L. J.

E. C. Martt, L. J. Smialek, and A. C. Green, Illum. Engr. 59, 34 (1964).

Unglert, M. C.

D. A. Larson, H. D. Fraser, N. V. Cushing, and M. C. Unglert, Ilium. Engr. 58, 434 (1963).

Vanyukov, M. P.

M. P. Vanyukov and A. A. Mak, Usp. Fiz. Nauk 66, 301 (1958)[English transl.: Soviet Phys.—Usp. 66, 137 (1958)].

Weinberg, E.

E. Weinberg, Science 144, 432 (1964).
[CrossRef] [PubMed]

Appl. Opt. (1)

Ilium. Engr. (1)

D. A. Larson, H. D. Fraser, N. V. Cushing, and M. C. Unglert, Ilium. Engr. 58, 434 (1963).

Illum. Engr. (1)

E. C. Martt, L. J. Smialek, and A. C. Green, Illum. Engr. 59, 34 (1964).

J. Opt. Soc. Am. (1)

Science (1)

E. Weinberg, Science 144, 432 (1964).
[CrossRef] [PubMed]

Usp. Fiz. Nauk (1)

M. P. Vanyukov and A. A. Mak, Usp. Fiz. Nauk 66, 301 (1958)[English transl.: Soviet Phys.—Usp. 66, 137 (1958)].

Z. Physik (2)

H. Meier, Z. Physik 149, 40 (1957).
[CrossRef]

H. Bartels and R. Beuchelt, Z. Physik 149, 608 (1957).
[CrossRef]

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Figures (4)

F. 1
F. 1

Spectra of TlI–Hg discharge. (a) continuous operation, (b) 10-J pulsed input, (c) 40-J pulsed input.

F. 2
F. 2

Spectra of NaI–Hg discharge. Top: continuous operation; bottom: pulsed operation.

F. 3
F. 3

Plasma temperature of TlI–Hg discharge during pulsed operation at 5 J/cm3 input.

F. 4
F. 4

Luminous output of pulsed discharges vs energy input.

Equations (1)

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T = [ C ( E 2 E 1 ) ] / [ k ln ( I 1 / I 2 ) ] ,