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Auger-electron emission resulting from the annihilation of core electrons with low-energy positrons

Journal Article · · Phys. Rev. Lett.; (United States)
We report the first demonstration of positron-induced Auger-electron spectroscopy. A beam of low-energy (10/sup 1/ eV) positrons was used to create core holes at the surface of Ni and Cu by matter-antimatter annihilation. Estimates are developed for the probability of positrons annihilating with a 3p electron and found to be as high as 3.7(7) x 10/sup -2/ in Ni. The implications of the extremely high signal to background are discussed and several important advantages of this process for surface analysis are suggested.
Research Organization:
Physics Department, University of Texas, Arlington, Texas 76019
OSTI ID:
6719953
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 61:19; ISSN PRLTA
Country of Publication:
United States
Language:
English