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2.2.8 Impact light flash studies: Temperature, Ejecta, Vaporization

Published online by Cambridge University Press:  12 April 2016

G. Eichhorn
G. Eichhorn*
Affiliation:
Max-Planck-Institut für Kernphysik, Heidelberg/F.R.G.

Abstract

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Impact experiments have been performed with the 2 MV dust accelerator; the dependence of the maximum light flash energy and intensity on the projectile mass and velocity has been determined experimentally. The temperature of the radiating gas and plasma was estimated to be in the range from 2500K to 5000K, depending on the impact velocity. The distribution of the maximum ejecta speed as well as the normalized distribution of ejected mass have been determined as a function of the ejection angle. A rough estimate of the degree of vaporization of the displaced mass was obtained.

Type
2 In Situ Measurements of Interplanetary Dust
Information
International Astronomical Union Colloquium , Volume 31: Interplanetary Dust and Zodiacal Light , 1976 , pp. 243 - 247
Copyright
Copyright © Springer-Verlag 1976

References

Eichhorn, G. (1975), “Measurements of the Light Plash Produced by High Velocity Particle Impact”, accepted for publication in Planet. Space Sci.CrossRefGoogle Scholar
Friichtenicht, J.F. (1965), “investigation of High-Speed Impact Phenomena”, NASA Contr. No. NA Sw-936.Google Scholar
Jean, B., and Rollins, T.L. (1970), “Radiation from Hypervelocity Generated Plasma”, AIAA Journal, Vol. 8, No. 10, p. 1742.CrossRefGoogle Scholar
Rollins, T.L., and Jean, B. (1968), “impact Flash for Micrometeoroid Detection”, Com. Dev. Report 9899/FRl, NASA Contr. No. NAS 9–6790.Google Scholar