Document Type

Article

Publication Date

1992

DOI

10.1103/PhysRevLett.68.2293

Publication Title

Physical Review Letters

Volume

68

Issue

15

Pages

2293-2296

Abstract

We have made an absolute measurement of the Cu K-shell impact ionization cross section by 5.1-GeV electrons, which demonstrates directly a density effect predicted by Fermi in 1940. By determining the ratio of the K x-ray yield from a thin front and back layer of the target by a novel grazing emission method, we have verified the effect of transition radiation on the x-ray production, suggested by Sorensen and reported by Bak et al.

Comments

© 1992 The American Physical Society

"Yes, the author or the author's employer may use all or part of the APS published article, including the APS-prepared version (e.g., the PDF from the online journal) without revision or modification, on the author's or employer's website as long as a fee is not charged. If a fee is charged, then APS permission must be sought. In all cases, the appropriate bibliographic citation and notice of the APS copyright must be included."

Publisher's version available at: https://doi.org/10.1103/PhysRevLett.68.2293

Original Publication Citation

Meyerhof, W. E., Jensen, D. G., Kawall, D. M., Kuhn, S. E., Spooner, D. W., Meziani, Z. E., & Faust, D. N. (1992). Density effect in Cu K-shell ionization by 5.1-GeV electrons. Physical Review Letters, 68(15), 2293-2296. https://doi.org/10.1103/PhysRevLett.68.2293

ORCID

0000-0003-2243-6836 (Kuhn)

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