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https://hdl.handle.net/10316/4521
Título: | Energy linearity of high-purity germanium detectors in the region of the Ge K-absorption edge: experimental results | Autor: | Santos, J. M. F. dos Monteiro, C. M. B. Morgado, R. E. Conde, C. A. N. |
Palavras-chave: | Energy linearity | Data: | 2000 | Citação: | Applied Radiation and Isotopes. 53:4-5 (2000) 739-743 | Resumo: | Non-linearities in the energy response of gas detectors in the regions of the absorption edges of the detection medium are well documented. Monte Carlo calculations show that the non-linearity results from differences in efficiencies for converting absorbed radiation into ionisation for different atomic sub-shells. Energy non-linearity in germanium-based solid-state detectors in the region of the germanium 11.104-keV K-edge is not well documented, although a 1% non-linearity has been previously reported in a Ge(Li) detector. This relatively high value is of practical concern since high-purity germanium (HPGe) is often the detector of choice for [alpha]- and X-ray spectrometry down to a few keV. In this paper, we present the experimental results for the energy response of a HPGe detector in the 8-15-keV energy region of the germanium K-edge. Within the accuracy of our measurements, we conclude that there is no measurable non-linearity effect in germanium at the K-edge. | URI: | https://hdl.handle.net/10316/4521 | DOI: | 10.1016/S0969-8043(00)00225-6 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
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file5f83370bd5ee4d03ad2711935dde772f.pdf | 172.88 kB | Adobe PDF | Ver/Abrir |
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