Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/19422
Tipo: | Artigo |
Título: | Alternative uses of a megavolt tandem accelerator for few-keV studies with ion-source SIMS monitoring |
Autor(es): | Mello, S. L. A. Codeço, C. F. S. Magnani, B. F. Sant’Anna, M. M. |
Abstract: | We increase the versatility of a tandem electrostatic accelerator by implementing simple modifications to the standard operation procedure. While keeping its ability to deliver MeV ion beams, we show that the experimental setup can (i) provide good quality ion beams in the few-keV energy range and (ii) be used to study ion-beam surface modification with simultaneous secondary ion mass spectrometry. This latter task is accomplished without using any chamber connected to the accelerator exit. We perform mass spectrometry of the few-keV anions produced in the ion source by measuring their neutral counterparts at the accelerator exit with energies up to 1.7 MeV. With an additional modification, a high-current few-keV regime is obtained, using the ion source as an irradiation chamber and the accelerator itself only as a mass spectrometer. As an example of application, we prepare a sample for the study of ion-beam assisted dewetting of a thin Au film on a Si substrate. |
Palavras-chave: | Alternative Megavolt few-keV SIMS monitoring |
Editor: | Review of Scientific Instruments |
Tipo de Acesso: | AIP Publishing |
URI: | https://doi.org/10.1063/1.4953889 http://www.locus.ufv.br/handle/123456789/19422 |
Data do documento: | 20-Jun-2016 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf Until 2100-12-31 | Texto completo | 2,53 MB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.