Strong matrix effect in low-energy He+ ion scattering from carbon

S.N. Mikhailov; L.C.A. van den Oetelaar; H.H. Brongersma

doi:10.1016/0168-583X(94)95689-8

Strong matrix effect in low-energy He⁺ ion scattering from carbon

S.N. Mikhailov
, L.C.A. van den Oetelaar
, H.H. Brongersma

Chemical Engineering and Chemistry

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

36 Citaten (Scopus)

Samenvatting

In low-energy ion scattering the contribution of neutralization processes to the scattered ion yield is very important in quantification. Neutralization of low-energy (1-3.5 keV) He⁺ ions by carbon is found to be much stronger for graphitic than for carbidic carbon. The ion fraction for graphitic carbon for 2.5 keV ³He⁺ scattering over 136° is about 60 times lower than that for carbidic carbon. For the ⁴He⁺ isotope the effect is even larger. Such a strong matrix effect for one element has not been measured before in low-energy (1-3.5 keV) inert-gas ion scattering. The neutralization behaviour is discussed in terms of a special quasi-resonant neutralization process for graphite.

Originele taal-2	Engels
Pagina's (van-tot)	210-214
Aantal pagina's	5
Tijdschrift	Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
Volume	93
Nummer van het tijdschrift	2
DOI's	https://doi.org/10.1016/0168-583X(94)95689-8
Status	Gepubliceerd - 2 jul. 1994

Bibliografische nota

Funding Information:
The investigationsw ere supported in part by the Dutch Technology Foundation (STW~ with financial aid from the Netherlands’ Organjzation for the Ad-vancemento f Scientific Research( NWO).

Financiering

The investigationsw ere supported in part by the Dutch Technology Foundation (STW~ with financial aid from the Netherlands’ Organjzation for the Ad-vancemento f Scientific Research( NWO).

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10.1016/0168-583X(94)95689-8

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Citeer dit

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title = "Strong matrix effect in low-energy He+ ion scattering from carbon",

abstract = "In low-energy ion scattering the contribution of neutralization processes to the scattered ion yield is very important in quantification. Neutralization of low-energy (1-3.5 keV) He+ ions by carbon is found to be much stronger for graphitic than for carbidic carbon. The ion fraction for graphitic carbon for 2.5 keV 3He+ scattering over 136° is about 60 times lower than that for carbidic carbon. For the 4He+ isotope the effect is even larger. Such a strong matrix effect for one element has not been measured before in low-energy (1-3.5 keV) inert-gas ion scattering. The neutralization behaviour is discussed in terms of a special quasi-resonant neutralization process for graphite.",

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Strong matrix effect in low-energy He⁺ ion scattering from carbon. / Mikhailov, S.N.; van den Oetelaar, L.C.A.; Brongersma, H.H.
In: Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, Vol. 93, Nr. 2, 02.07.1994, blz. 210-214.

Onderzoeksoutput: Bijdrage aan tijdschrift › Tijdschriftartikel › Academic › peer review

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AU - Brongersma, H.H.

N1 - Funding Information: The investigationsw ere supported in part by the Dutch Technology Foundation (STW~ with financial aid from the Netherlands’ Organjzation for the Ad-vancemento f Scientific Research( NWO).

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AB - In low-energy ion scattering the contribution of neutralization processes to the scattered ion yield is very important in quantification. Neutralization of low-energy (1-3.5 keV) He+ ions by carbon is found to be much stronger for graphitic than for carbidic carbon. The ion fraction for graphitic carbon for 2.5 keV 3He+ scattering over 136° is about 60 times lower than that for carbidic carbon. For the 4He+ isotope the effect is even larger. Such a strong matrix effect for one element has not been measured before in low-energy (1-3.5 keV) inert-gas ion scattering. The neutralization behaviour is discussed in terms of a special quasi-resonant neutralization process for graphite.

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