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FORMATION OF HELIUM-CLUSTER IONSCO2Hen+(n≤15)IN A DRIFT TUBE COOLED BY LIQUID HELIUM

Author

Listed:
  • H. TANUMA

    (Department of Physics, Tokyo Metropolitan University, 1–1 Minami-Ohsawa, Hachioji, Tokyo 192–03, Japan)

  • M. SAKAMOTO

    (Department of Physics, Tokyo Metropolitan University, 1–1 Minami-Ohsawa, Hachioji, Tokyo 192–03, Japan)

  • N. KOBAYASHI

    (Department of Physics, Tokyo Metropolitan University, 1–1 Minami-Ohsawa, Hachioji, Tokyo 192–03, Japan)

Abstract

The formation of helium-cluster ionCO2Hen+(n≤15)has been observed whenCO2+ions are injected into a drift tube filled with helium gas cooled by liquid helium. The cluster sizesn = 5and 14 are found to be magic numbers based on the drift-field dependence of the cluster size distribution. The structure ofCO2He14+cannot be considered as the icosahedron, which is proposed as the structure of the cluster ions having twelve helium atoms surrounding the ionic core in our previous papers.

Suggested Citation

  • H. Tanuma & M. Sakamoto & N. Kobayashi, 1996. "FORMATION OF HELIUM-CLUSTER IONSCO2Hen+(n≤15)IN A DRIFT TUBE COOLED BY LIQUID HELIUM," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 3(01), pages 205-209.
    • Handle: RePEc:wsi:srlxxx:v:03:y:1996:i:01:n:s0218625x96000413
    DOI: 10.1142/S0218625X96000413
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