Proposed measurements of dielectronic recombination using the Indiana cooler facility

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Abstract

It is proposed to measure dielectronic recombination (DR) using the IUCF Cooler. This process, which involves the electron-electron interaction, takes place when electron capture is accompanied by simultaneous excitation of the interacting ion resulting in the formation of a doubly-excited intermediate state. The IUCF Cooler, with its high electron beam intensity and high electron-energy resolution, provides a unique opportunity for investigating this fundamental atomic collision process. Specifically, it is proposed to measure DR for collisions of He+ ions with electrons in the Cooler at relative energies (in the rest frame of the ion) of about 30–40 eV. The DR cross sections obtained will be used to test theoretical calculations of this correlated two-electron process, which apart from their fundamental interest, have applications to astrophysical studies and to the development of nuclear fusion plasmas.

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Cited by (2)

  • Dielectronic recombination in He<sup>+</sup> ions

    1991, Nuclear Inst. and Methods in Physics Research, B
  • The Indiana Cooler: A retrospective

    2007, Annual Review of Nuclear and Particle Science

Work supported in part by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences.

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