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URI permanente para esta colecciónhttps://hdl.handle.net/11441/10939

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Spectrometric Performance of SiC Radiation Detectors at High Temperature
(Elsevier, 2024) Jiménez Ramos, María del Carmen; García Osuna, Adrián; Rodríguez Ramos, Mauricio; Viezzer, Eleonora; Pellegrini, G.; Godignon, P.; Rafí, J. M.; Rius, G.; García López, Francisco Javier; Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear; Universidad de Sevilla. Departamento de Física Aplicada II; Ministerio de Ciencia, Innovación y Universidades (MICINN). España; Junta de Andalucía; Ministerio de Ciencia e Innovación (MICIN). España
In this work, we have investigated the performance of a 4H–SiC radiation sensor in the temperature range from 25 °C to 450 °C to explore its compatibility as detector of fast ion losses in plasma diagnostic of future nuclear fusion reactors. To simulate the escape of fusion-born alpha particles in D-T (deuterium-tritium) fusion plasmas, spectroscopic measurements were carried out in a vacuum chamber by irradiating the detector with a 3.5 MeV alpha beam from a Tandem accelerator. The detector was found to have an energy resolution ≤2% over the entire temperature range analyzed. Relevantly, the excellent spectrometric capabilities of the device have allowed us to calculate from experimental data, with unprecedented accuracy, the average energy required to create a single electron-hole pair in 4H–SiC as a function of temperature.