Abstract

A new method for transforming observed radiances into the radial distribution of the emission of a plasma is described. It is applicable to optically thin plasmas with cylindrical or spherical symmetry, which are often encountered in plasma physics and astrophysics. The observations are introduced as a sequence of <i>n</i> readings on the experimental curve, which are then transformed to a set of values for the emission coefficient. The transformation coefficients are tabulated for <i>n</i>=10, <i>n</i>=20, and, in part, for <i>n</i>=40. The method is more accurate than previously published ones and is well suited for rapid calculation by electronic computers. The sources of errors are discussed and a numerical method for smoothing the readings is suggested.

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  1. H. Hörman, Z. Physik 97, 539 (1935).
  2. H. Brinkman, "Optische studie van de electrische Lichtboog, Thesis, University of Utrecht, Utrecht, The Netherlands (1937), p. 85.
  3. H. Maecker, Z. Physik 136, 119 (1953); 139, 448 (1954).
  4. W. J. Pearce, Conference on Extremely High Temperatures, edited by H. Fischer and L. C. Mansur (John Wiley & Sons, Inc., New York, 1958), p. 123.
  5. J. Friedrich, Ann. Physik 3, 327 (1959).

Brinkman, H.

H. Brinkman, "Optische studie van de electrische Lichtboog, Thesis, University of Utrecht, Utrecht, The Netherlands (1937), p. 85.

Friedrich, J.

J. Friedrich, Ann. Physik 3, 327 (1959).

Hörman, H.

H. Hörman, Z. Physik 97, 539 (1935).

Maecker, H.

H. Maecker, Z. Physik 136, 119 (1953); 139, 448 (1954).

Pearce, W. J.

W. J. Pearce, Conference on Extremely High Temperatures, edited by H. Fischer and L. C. Mansur (John Wiley & Sons, Inc., New York, 1958), p. 123.

Other (5)

H. Hörman, Z. Physik 97, 539 (1935).

H. Brinkman, "Optische studie van de electrische Lichtboog, Thesis, University of Utrecht, Utrecht, The Netherlands (1937), p. 85.

H. Maecker, Z. Physik 136, 119 (1953); 139, 448 (1954).

W. J. Pearce, Conference on Extremely High Temperatures, edited by H. Fischer and L. C. Mansur (John Wiley & Sons, Inc., New York, 1958), p. 123.

J. Friedrich, Ann. Physik 3, 327 (1959).

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