Abstract

The radiant energies per square centimeter of six capacitor discharge lamps, with and without reflectors, were measured by the heating effects they produce in a standard graphite cylinder exposed to the flash. Energies as high as 26 joules cm<sup>-2</sup> for a single flash are reported. Irradiances were estimated from oscilloscope intensity-time data, and shown to be as high as 66 kw cm<sup>-2</sup>. This is at least an order of magnitude greater than the irradiances obtainable in solar and arc image furnaces. The usefulness of capacitor discharge lamps as rapid heat sources is discussed.

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  1. P. M. Murphy and H. E. Edgerton, J. Appl. Phys. 12, 848 (1941).
  2. See review by R. G. W. Norrish and B. A. Thrush, Quart. Rev. (London) 10, 149 (1956).
  3. R. J. Collins, D. F. Nelson, A. L. Schawlow, W. Bond, C. G. B. Garrett, and W. Kaiser, Phys. Rev. Letters 5, 303 (1960).
  4. J. Eggert, Physik. Bl. 10, 549 (1954); J. Phys. Chem. 63, 11 (1959).
  5. L. S. Nelson and J. L. Lundberg, J. Phys. Chem. 63, 443 (1959).
  6. M. I. Christie and G. Porter, Proc. Roy. Soc. (London) A212, 390 (1952).
  7. S. Claesson and G. Wettermark, Arkiv Kemi 11, 561 (1957).
  8. T. H. Maiman, Nature 187, 493 (1960); see also P. A. Miles and H. E. Edgerton, J. Appl. Phys. 32, 740 (1961).
  9. R. J. Charlson, H. Harrison, and R. Hardwick, Rev. Sci. Instr. 31, 46 (1960).
  10. S. Claesson and L. Lindquist, Arkiv Kemi 12, 1 (1958).
  11. K . K. Kelley, U. S. Bur. Mines Bull. 371 (1934).
  12. M. R. Null and W. W. Lozier, Rev. Sci. Instr. 29, 163 (1958).
  13. G. Benveniste and N. K. Hiester, Mech. Eng. 78, 915 (1956).
  14. J. A. Anderson, Astrophys. J. 75, 394 (1932).
  15. G. Porter, Proc. Roy. Soc. (London) A200, 284 (1950).

Anderson, J. A.

J. A. Anderson, Astrophys. J. 75, 394 (1932).

Benveniste, G.

G. Benveniste and N. K. Hiester, Mech. Eng. 78, 915 (1956).

Bond, W.

R. J. Collins, D. F. Nelson, A. L. Schawlow, W. Bond, C. G. B. Garrett, and W. Kaiser, Phys. Rev. Letters 5, 303 (1960).

Charlson, R. J.

R. J. Charlson, H. Harrison, and R. Hardwick, Rev. Sci. Instr. 31, 46 (1960).

Christie, M. I.

M. I. Christie and G. Porter, Proc. Roy. Soc. (London) A212, 390 (1952).

Claesson, S.

S. Claesson and G. Wettermark, Arkiv Kemi 11, 561 (1957).

S. Claesson and L. Lindquist, Arkiv Kemi 12, 1 (1958).

Collins, R. J.

R. J. Collins, D. F. Nelson, A. L. Schawlow, W. Bond, C. G. B. Garrett, and W. Kaiser, Phys. Rev. Letters 5, 303 (1960).

Edgerton, H. E.

P. M. Murphy and H. E. Edgerton, J. Appl. Phys. 12, 848 (1941).

Eggert, J.

J. Eggert, Physik. Bl. 10, 549 (1954); J. Phys. Chem. 63, 11 (1959).

Garrett, C. G. B.

R. J. Collins, D. F. Nelson, A. L. Schawlow, W. Bond, C. G. B. Garrett, and W. Kaiser, Phys. Rev. Letters 5, 303 (1960).

Hardwick, R.

R. J. Charlson, H. Harrison, and R. Hardwick, Rev. Sci. Instr. 31, 46 (1960).

Harrison, H.

R. J. Charlson, H. Harrison, and R. Hardwick, Rev. Sci. Instr. 31, 46 (1960).

Hiester, N. K.

G. Benveniste and N. K. Hiester, Mech. Eng. 78, 915 (1956).

Kaiser, W.

R. J. Collins, D. F. Nelson, A. L. Schawlow, W. Bond, C. G. B. Garrett, and W. Kaiser, Phys. Rev. Letters 5, 303 (1960).

Kelley, K . K.

K . K. Kelley, U. S. Bur. Mines Bull. 371 (1934).

Lindquist, L.

S. Claesson and L. Lindquist, Arkiv Kemi 12, 1 (1958).

Lozier, W. W.

M. R. Null and W. W. Lozier, Rev. Sci. Instr. 29, 163 (1958).

Lundberg, J. L.

L. S. Nelson and J. L. Lundberg, J. Phys. Chem. 63, 443 (1959).

Maiman, T. H.

T. H. Maiman, Nature 187, 493 (1960); see also P. A. Miles and H. E. Edgerton, J. Appl. Phys. 32, 740 (1961).

Murphy, P. M.

P. M. Murphy and H. E. Edgerton, J. Appl. Phys. 12, 848 (1941).

Nelson, D. F.

R. J. Collins, D. F. Nelson, A. L. Schawlow, W. Bond, C. G. B. Garrett, and W. Kaiser, Phys. Rev. Letters 5, 303 (1960).

Nelson, L. S.

L. S. Nelson and J. L. Lundberg, J. Phys. Chem. 63, 443 (1959).

Norrish, R. G. W.

See review by R. G. W. Norrish and B. A. Thrush, Quart. Rev. (London) 10, 149 (1956).

Null, M. R.

M. R. Null and W. W. Lozier, Rev. Sci. Instr. 29, 163 (1958).

Porter, G.

G. Porter, Proc. Roy. Soc. (London) A200, 284 (1950).

M. I. Christie and G. Porter, Proc. Roy. Soc. (London) A212, 390 (1952).

Schawlow, A. L.

R. J. Collins, D. F. Nelson, A. L. Schawlow, W. Bond, C. G. B. Garrett, and W. Kaiser, Phys. Rev. Letters 5, 303 (1960).

Thrush, B. A.

See review by R. G. W. Norrish and B. A. Thrush, Quart. Rev. (London) 10, 149 (1956).

Wettermark, G.

S. Claesson and G. Wettermark, Arkiv Kemi 11, 561 (1957).

Other

P. M. Murphy and H. E. Edgerton, J. Appl. Phys. 12, 848 (1941).

See review by R. G. W. Norrish and B. A. Thrush, Quart. Rev. (London) 10, 149 (1956).

R. J. Collins, D. F. Nelson, A. L. Schawlow, W. Bond, C. G. B. Garrett, and W. Kaiser, Phys. Rev. Letters 5, 303 (1960).

J. Eggert, Physik. Bl. 10, 549 (1954); J. Phys. Chem. 63, 11 (1959).

L. S. Nelson and J. L. Lundberg, J. Phys. Chem. 63, 443 (1959).

M. I. Christie and G. Porter, Proc. Roy. Soc. (London) A212, 390 (1952).

S. Claesson and G. Wettermark, Arkiv Kemi 11, 561 (1957).

T. H. Maiman, Nature 187, 493 (1960); see also P. A. Miles and H. E. Edgerton, J. Appl. Phys. 32, 740 (1961).

R. J. Charlson, H. Harrison, and R. Hardwick, Rev. Sci. Instr. 31, 46 (1960).

S. Claesson and L. Lindquist, Arkiv Kemi 12, 1 (1958).

K . K. Kelley, U. S. Bur. Mines Bull. 371 (1934).

M. R. Null and W. W. Lozier, Rev. Sci. Instr. 29, 163 (1958).

G. Benveniste and N. K. Hiester, Mech. Eng. 78, 915 (1956).

J. A. Anderson, Astrophys. J. 75, 394 (1932).

G. Porter, Proc. Roy. Soc. (London) A200, 284 (1950).

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