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J. GomezC. N. R. S.-C. E. R. I. 3A rue de la Férollerie 45071 Orléans Cedex 2 France

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G. BlondiauxC. N. R. S.-C. E. R. I. 3A rue de la Férollerie 45071 Orléans Cedex 2 France

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B. HakimC. N. R. S.-C. E. R. I. 3A rue de la Férollerie 45071 Orléans Cedex 2 France

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C. PerrinC. N. R. S.-C. E. R. I. 3A rue de la Férollerie 45071 Orléans Cedex 2 France

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J. DebrunC. N. R. S.-C. E. R. I. 3A rue de la Férollerie 45071 Orléans Cedex 2 France

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Abstract  

Ubiquitous elements like carbon and oxygen always contaminate surfaces and, therefore, are the soucre of important analytical errors at trace level. Even in the case of radioactivation (with charged particles), where the sample can be etched after irradiation, analytical problems exist. In this work, we show that laser desorption/ablation can efficiently clean surfacaes, in the case of GaAs samples, resulting in better analytical conditions. Under ultra high vacuum, these surfaces remain clean long enough, so that the analysis of carbon and oxygen can be carried out using various nuclear methods, according to the needs of the analyst.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)