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Proceedings Paper

Radiation-induced electron cascade in diamond and amorphous carbon
Author(s): Beata Ziaja; David van der Spoel; Abraham Szoke; Janos Hajdu
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Paper Abstract

We have analyzed the evolution and the interaction dynamics of secondary cascade electrons generated by a single Auger electron in diamond and in amorphous carbon. The elastic mean free path was calculated as a function of impact energy, using the muffin-tin potential approximation, while the differential mean free path and the inelastic mean free path were estimated from two different optical models as a function of the impact energy. A Monte-Carlo model for describing the time evolution of the cascade was constructed, and numerical simulations were performed. The results show that the maximal average ionization rate caused by a single Auger electron corresponds to about $20$ to $40$ ionization events in a macroscopic sample. These electrons are liberated within 100 fs, following the Auger emission.

Paper Details

Date Published: 28 December 2001
PDF: 12 pages
Proc. SPIE 4500, Optics for Fourth-Generation X-Ray Sources, (28 December 2001); doi: 10.1117/12.452965
Show Author Affiliations
Beata Ziaja, Uppsala Univ. (Sweden) and Institute of Nuclear Physics (Poland) (Sweden)
David van der Spoel, Uppsala Univ. (Sweden) (Sweden)
Abraham Szoke, Uppsala Univ. (Sweden) and Lawrence Livermore National Lab. (United States)
Janos Hajdu, Uppsala Univ. (Sweden) (Sweden)

Published in SPIE Proceedings Vol. 4500:
Optics for Fourth-Generation X-Ray Sources
Roman O. Tatchyn; Andreas K. Freund; Tadashi Matsushita, Editor(s)

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