Detalhes do Documento

Application of large-area avalanche photodiodes to X-ray spectrometry of muonic...

Autor(es): Fernandes, L. M. P. cv logo 1 ; Antognini, A. cv logo 2 ; Boucher, M. cv logo 3 ; Conde, C. A. N. cv logo 4 ; Huot, O. cv logo 5 ; Knowles, P. E. cv logo 6 ; Kottmann, F. cv logo 7 ; Ludhova, L. cv logo 8 ; Mulhauser, F. cv logo 9 ; Pohl, R. cv logo 10 ; Santos, J. M. F. dos cv logo 11 ; Schaller, L. A. cv logo 12 ; Taqqu, D. cv logo 13 ; Veloso, J. F. C. A. cv logo 14

Data: 2003

Identificador Persistente: http://hdl.handle.net/10316/4460

Origem: Estudo Geral - Universidade de Coimbra

Assunto(s): Lamb shift; Muonic atoms X-ray spectrometry; Avalanche photodiodes


Descrição
Large-area avalanche photodiodes have been investigated as 1.9-keV X-ray detectors for the muonic hydrogen Lamb-shift experiment. We report experimental tests carried out for evaluation of the avalanche photodiode capabilities for X-ray detection in the intense radiation and low counting rate environment of experiments with muonic atoms. Several muonic atoms were used and it was shown that the electronic background of muonic atom X-ray spectra can be reduced simply by timing the X-ray signal against the gate signal produced by the muon entrance. Furthermore, the background can be eliminated using coincidences between the X-ray signal and the signal resulting from the electron due to the muon decay. This coincidence discrimination results, however, in a reduction of the X-ray detection efficiency. http://www.sciencedirect.com/science/article/B6THN-4B6608X-11/1/4bb8c2b08d267e2eba00e1ae64b143a9
Tipo de Documento Artigo
Idioma Inglês
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