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Влияние нейтронного облучения на характеристики SiC- и Si-детекторов
- Authors: Гуров Ю.Б.1,2, Довбненко М.С.1, Евсеев С.A.1, Замятин Н.И.1, Копылов Ю.A.1, Розов С.В.1, Стрелецкая Е.A.1, Чернышев Б.A.2, Грубчин Л.3, Затько Б.3
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Affiliations:
- Объединенный институт ядерных исследований
- Национальный исследовательский ядерный университет “МИФИ”
- Institute of Electrical Engineering, Slovak Academy of Science Slovakia
- Issue: No 6 (2024)
- Pages: 38–43
- Section: ТЕХНИКА ЯДЕРНОГО ЭКСПЕРИМЕНТА
- URL: https://cijournal.ru/0032-8162/article/view/679378
- ID: 679378
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Fig. 1. Dependences of the capacitance C (1–4) and the parameter C⁻² (5–8) on the applied voltage for SiC detectors: 1, 5 – non-irradiated sample; 2, 6 – detector irradiated with a flux of Ф = 5.1⋅10¹³ N/cm²; 3, 7 – Ф = 5.4⋅10¹⁴ N/cm², 4, 8 – Ф = 3.4⋅10¹⁵ N/cm².
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Fig. 2. Dependences of the capacitance C (1, 2) and the parameter C⁻² (3, 4) on the applied voltage for Si detectors: 1, 3 – non-irradiated sample; 2, 4 – detector irradiated with a flux Ф = 5.1⋅10¹³ N/cm².
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Fig. 3. ²²⁶Ra spectra measured using SiC detectors: a — non-irradiated sample; b, c, d — detectors irradiated with neutron fluxes Ф = 5.1⋅10¹³, 5.4⋅10¹⁴ and 3.4⋅10¹⁵ n/cm², respectively.
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Fig. 4. ²²⁶Ra spectra measured using Si detectors: a — non-irradiated sample, b — detector irradiated with a neutron flux Ф = 5.1⋅10¹³ n/cm².
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Fig. 5. Dependence of the energy resolution on the applied voltage for SiC detectors: 1 — non-irradiated sample (right axis), 2, 3, 4 — detectors irradiated with neutron fluxes of 5.1⋅10¹³, 5.4⋅10¹⁴ and 3.4⋅10¹⁵ n/cm², respectively (left axis).
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Fig. 6. Dependence of the energy resolution (1, 3, right axis) and charge collection efficiency (2, 4, left axis) on the applied voltage for Si detectors: 1, 2 — non-irradiated sample, 3, 4 — detector irradiated with a flux of 5.1⋅10¹³ N/cm².
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Fig. 7. Dependence of charge collection efficiency on the applied voltage for SiC detectors: 1 — non-irradiated sample, 2, 3, 4 — detectors irradiated with fluxes of 5.1⋅10¹³, 5.4⋅10¹⁴ and 3.4⋅10¹⁵ N/cm², respectively.
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