Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/4501
Title: | Non-linear behaviour of large-area avalanche photodiodes | Authors: | Fernandes, L. M. P. Lopes, J. A. M. Monteiro, C. M. B. Santos, J. M. F. dos Morgado, R. E. |
Keywords: | Scintillation detectors; X-ray detectors; Avalanche photodiodes | Issue Date: | 2002 | Citation: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 478:1-2 (2002) 395-399 | Abstract: | The characterisation of photodiodes used as photosensors requires a determination of the number of electron-hole pairs produced by scintillation light. One method involves comparing signals produced by X-ray absorptions occurring directly in the avalanche photodiode with the light signals. When the light is derived from light-emitting diodes in the 400-600 nm range, significant non-linear behaviour is reported. In the present work, we extend the study of the linear behaviour to large-area avalanche photodiodes, of Advanced Photonix, used as photosensors of the vacuum ultraviolet (VUV) scintillation light produced by argon (128 nm) and xenon (173 nm). We observed greater non-linearities in the avalanche photodiodes for the VUV scintillation light than reported previously for visible light, but considerably less than the non-linearities observed in other commercially available avalanche photodiodes. | URI: | https://hdl.handle.net/10316/4501 | DOI: | 10.1016/S0168-9002(01)01781-8 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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filec85576ceba8a4867bf219c5ff40374c8.pdf | 169.82 kB | Adobe PDF | View/Open |
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