Backward ejected electrons from collisions of 1 MeV/u O{sup q+} projectiles with argon gas

Journal Article · Sat May 01 04:00:00 EDT 1993 · Bulletin of the American Physical Society

OSTI ID:281616

Berryman, J W; Breinig, M; Segner, F; Desai, D ^[1]

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1. Univ. of Tennessee, Knoxville, TN (United States)

We will be presenting results from a series of experiments measuring the yields and energy distributions of electrons emitted at 1800 with respect to the 1 MeV/u O{sup q+} [q=3-8] ion beam. We have systematically studied the yield per incident ion and the energy distribution of electrons as a function of the incident projectile charge state. The energy distributions show two prominent structures: a narrow peak due to target LMM Auger electrons and a broad hump due to projectile binary-encounter electrons. The shapes and yields of the Auger electron peaks are nearly independent of the incident charge state. The shapes and yields of the binary-encounter electron peaks are sensitive functions of the number of projectile electrons carried into the collision. A well defined binary-encounter electron peak appears only for charge states q=3, 4, and 5.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 281616
• Report Number(s): CONF-9305421--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 38; ISSN 0003-0503; ISSN BAPSA6
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ARGON
ELECTRON EMISSION
ENERGY SPECTRA
ION-ATOM COLLISIONS
MEV RANGE
OXYGEN IONS