High-resolution Ne K Auger spectra from collisions between Ne and H sup + , Ne sup 3+ , Ne sup 10+ , Ar sup 6+ , and Ar sup 16+ (5. 5 MeV/u)

Journal Article · Sun Apr 01 04:00:00 EDT 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.41.3518· OSTI ID:6902995

Kadar, I; Ricz, S; Vegh, J; Sulik, B; Varga, D; Berenyi, D ^[1]

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1. Institute of Nuclear Research of the Hungarian Academy of Sciences, ATOMKI, H-4001 Debrecen, P.O. Box 51, Hungary (HU)

Energetic heavy-ion-impact-induced Ne {ital KLL} Auger spectra have been studied by a high-resolution electron spectrometer. To analyze the complex Auger spectra in which many satellite lines are included stemming from multiply ionized neon states, the measured series of interrelated spectra was used with the help of a properly developed computerized procedure. Energy and intensity of the lines in the spectra were determined, and an identification procedure was carried out for all the vacancy configurations from Li-like states to the F-like states (diagram lines). The results were compared with the corresponding theoretical transition energy and intensity values. Based on the above results it was possible to obtain information on the multiple-ionization process at the impact-parameter region of the {ital K}-shell ionization. Thus, we have determined the two-dimensional vacancy configuration distribution (2{ital s},2{ital p} vacancies) for all the states attainable by Auger transitions. The experimentally determined vacancy configuration distributions did not show any significant difference from the predictions of the independent-particle model. In addition, no definite tendency was found in the ionization probabilities as a function of the degree of ionization.

• OSTI ID: 6902995
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 41:7; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON IONS
ATOM COLLISIONS
AUGER EFFECT
CATIONS
CHARGED PARTICLES
COLLISIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY RANGE
ENERGY SPECTRA
FLUIDS
GASES
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
INNER-SHELL IONIZATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
K SHELL
MEV RANGE
MEV RANGE 100-1000
MULTICHARGED IONS
NEON
NEON IONS
NONMETALS
POINT DEFECTS
RARE GASES
SPECTRA
VACANCIES