Irradiation Parameters in Cosmic Chemistry

  • N. J. Sack
Part of the NATO ASI Series book series (ASIC, volume 323)

Abstract

The radiation chemistry of various dense astrophysical environments has been subject to many laboratory investigations which dealt with the radiation of simple gas or ice mixtures with UV radiation or high energy particle irradiation. Certainly the experimental irradiation time is always by many orders of magnitude shorter than the time scales of the simulated astrophysical system. To obtain comparable total absorbed doses of energy, high dose rates, respectively current densities of radiation, have been applied in the simulations. This paper deals with problems in the application of experimental data on the chemistry of the astrophysical environments arising by the difference in dose rate.

Keywords

Reactive Species Irradiation Parameter High Power Density High Dose Rate Radiation Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Johnson R. E., J. F. Cooper, and L. J. Lanzerotti 1986, in Proc. 20th ESLAB Symposium on the Exploration of Halley’s Comet, Heidelberg, 27–37 October 1986, pp. 269–271. ESA SP-250 (December 1986).Google Scholar
  2. Meisels G. G. 1965, J. Amer. Chem. Soc. 87, 950–957.CrossRefGoogle Scholar
  3. Sack N. J. 1989 ‘On the importance of radical density in cosmic chemistry’, submitted to Earth, Moon, and Planets.Google Scholar
  4. Sack N. J., R. Schuster, and A. Hofmann 1989 ‘Current density effects and the importance of charge transfer processes in the radiolysis of methane - astrophysical implications’, submitted to The Astrophys. J.Google Scholar
  5. Woodward T. W., and R. A. Back 1963, in the γ- radiolysis of hydrocarbon gases, Can. J. Chem. 41, 1463–1468.Google Scholar

Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • N. J. Sack
    • 1
  1. 1.Department of Nuclear Engineering and Engineering PhysicsUniversity of VirginiaCharlottesvilleUSA

Personalised recommendations