Photoionization of atomic iodine and atomic tellurium

J. Berkowitz, C. H. Batson, and G. L. Goodman
Phys. Rev. A 24, 149 – Published 1 July 1981
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Abstract

Mass-analyzed photoionization spectra have been obtained from beams of atomic iodine and atomic tellurium from their respective ionization thresholds to ∼ 19 eV. In each instance the ionization thresholds are confirmed. For iodine, most of the features in the autoionization resonance spectrum have been identified and assigned to several s- and d-like Rydberg series converging to the higher-ionization limits P03, P13, D21, and S01 of the 5s25p4 configuration. For tellurium we also observe autoionization resonance features assigned to s- and d-like Rydberg series converging to the higher-ionization limits D322, D522, P122, and P322 of the 5s25p3 configuration. In addition, a window-resonance series and additional peaks have been assigned as converging to the 5s5p4P524 state of Te+, with quantum defect of ∼0.5 (modulo 1). In both elements, the d-like series exhibits anomalous resonance profiles similar to those in the heavier noble gases, with quantum defects of ∼0.4 (modulo 1). The s-like series has quantum defects of ∼0.0 (modulo 1). Some comparisons are made with many-body calculations on the related chlorine atom.

  • Received 13 January 1981

DOI:https://doi.org/10.1103/PhysRevA.24.149

©1981 American Physical Society

Authors & Affiliations

J. Berkowitz, C. H. Batson, and G. L. Goodman

  • Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

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Vol. 24, Iss. 1 — July 1981

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