Auger decay of Na-like Si{sup 3+} (2p53lnl{prime}) states formed in slow Si{sup 5+} ->He and Ar ion-atom collisions

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:199649

Schneider, D ^[1]; Bruch, R ^[2]; Bragge, T ^[3]

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1. Lawrence Livermore National Lab., CA (United States)
2. Univ. of Nevada, Reno, NV (United States)
3. Vanderbuilt Univ., Nashville, TN (United States); and others

High resolution autoionization spectra of multiply-charged Na-like states in silicon are presented. These states have been populated in collisions of Si{sup 5+} ions with 50 keV impact energy on two gas targets: He and Ar. The electron emission following the decay of core excited 2p{sup 5}3lnl` (n=3-6 ) levels in Si IV has been measured. The comparison of electron spectra obtained after collisions with He and Ar is given. Theoretical Auger energies due to core-excited (2p{sup 5}3s{sup 2}), (2p{sup 5}3s3p), (2p{sup 5}3p3d), (2p{sup 5}3s4s) and (2p{sup 5}3s4f) states have been calculated relative to the (2p{sup 6}){sup 1}S limit by using the Multiconfiguration Hartree-Fock (MCHT) method. Additional theoretical estimates of Auger transition energies originating from (2p{sup 5}3p{sup 2}), (2p{sup 5}3d{sup 2}), (2p{sup 5}3s4d), (2p{sup 5}3s5p), (2p{sup 5}3s6s), (2p{sup 5}3s6p) and (2p{sup 5}3s6g) are also presented.

• OSTI ID: 199649
• Report Number(s): CONF-941129--
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AUGER EFFECT
AUTOIONIZATION
HARTREE-FOCK METHOD
SILICON IONS