Effect of total dose proton irradiation on the performance of Kinetic Inductance Detectors for far-Infrared space observatory
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| Main Authors: | , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866910197507686400 |
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| author | Besnard, A. Conenna, G. Sauvage, V. Karatsu, K. Yates, S. J. C. Baselmans, J. J. A Maffei, B. Ferrari, L. |
| author_facet | Besnard, A. Conenna, G. Sauvage, V. Karatsu, K. Yates, S. J. C. Baselmans, J. J. A Maffei, B. Ferrari, L. |
| contents | Kinetic Inductance Detectors (KIDs) are a promising technology for future space missions, where exposure to high-energy particles may affect detector performance. In this work, we irradiated two types of KID arrays, absorber coupled and antenna coupled, with high-energy protons at 120 mK. We used a total dose equivalent to approximately 10 years of operation at the L2 Lagrange point. A comparison between pre-irradiation and post-irradiation measurements (24 hours after a 5.7 krad total dose) was done, while keeping the detectors at 120 mK. We find that there is no significant change in the quasi-particle lifetime τ_qp and the dark responsivity dθ/dPdark, but we do observe an increase in the noise and NEP that is tentatively attributed to limitations in the post radiation data analysis. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2604_23233 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Effect of total dose proton irradiation on the performance of Kinetic Inductance Detectors for far-Infrared space observatory Besnard, A. Conenna, G. Sauvage, V. Karatsu, K. Yates, S. J. C. Baselmans, J. J. A Maffei, B. Ferrari, L. Instrumentation and Detectors Instrumentation and Methods for Astrophysics Kinetic Inductance Detectors (KIDs) are a promising technology for future space missions, where exposure to high-energy particles may affect detector performance. In this work, we irradiated two types of KID arrays, absorber coupled and antenna coupled, with high-energy protons at 120 mK. We used a total dose equivalent to approximately 10 years of operation at the L2 Lagrange point. A comparison between pre-irradiation and post-irradiation measurements (24 hours after a 5.7 krad total dose) was done, while keeping the detectors at 120 mK. We find that there is no significant change in the quasi-particle lifetime τ_qp and the dark responsivity dθ/dPdark, but we do observe an increase in the noise and NEP that is tentatively attributed to limitations in the post radiation data analysis. |
| title | Effect of total dose proton irradiation on the performance of Kinetic Inductance Detectors for far-Infrared space observatory |
| topic | Instrumentation and Detectors Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2604.23233 |