Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/4460
Title: | Application of large-area avalanche photodiodes to X-ray spectrometry of muonic atoms | Authors: | Fernandes, L. M. P. Antognini, A. Boucher, M. Conde, C. A. N. Huot, O. Knowles, P. E. Kottmann, F. Ludhova, L. Mulhauser, F. Pohl, R. Santos, J. M. F. dos Schaller, L. A. Taqqu, D. Veloso, J. F. C. A. |
Keywords: | Lamb shift; Muonic atoms X-ray spectrometry; Avalanche photodiodes | Issue Date: | 2003 | Citation: | Spectrochimica Acta Part B: Atomic Spectroscopy. 58:12 (2003) 2255-2260 | Abstract: | 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. | URI: | https://hdl.handle.net/10316/4460 | DOI: | 10.1016/S0584-8547(03)00214-3 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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