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Chapter 3 for quantum detectionQuantum detection describes the electronic excitation in quantum detectors, the fundamental statistical physics on energy resolution, and the operation of practical devices such as STJDSuperconductor Tunnel Junction Detector (STJD) and MKIDMicrowave Kinetic Inductance Detector (MKID) to readout the quasiparticle excitationQuasiparticle excitation. A historical overview highlights the works of pioneers. Similarity and dissimilarity between semiconductors and superconductors bring a deep understanding of superconductor quantum detectors. Unexpectedly, even in semiconductor detectors, there are unsolvedUnsolved issues on the average energy ε consumed for generating one electron–hole (e–h) pair and the Fano factor. Additionally, superconductor quantum detectors encounter a problem of spatial inhomogeneity of detector output with respect to particle absorption locations. Physics of superconductor quantum detectors is lacking in some fundamental data, which represents an important area for future research. Nevertheless, the superconductor quantum detectors achieve an energy resolution of 2–4 eV in a soft X-raySoft X-ray range below 1 keV and a high count rateCount rate of ~ 200 kcps, which enables high throughput imaging analysis of advanced materials.

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Quantum Detection

  • 章节

  • 发表日期：

    2025年

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  • Masataka Ohkubo

摘要

Chapter 3 for quantum detectionQuantum detection describes the electronic excitation in quantum detectors, the fundamental statistical physics on energy resolution, and the operation of practical devices such as STJDSuperconductor Tunnel Junction Detector (STJD) and MKIDMicrowave Kinetic Inductance Detector (MKID) to readout the quasiparticle excitationQuasiparticle excitation. A historical overview highlights the works of pioneers. Similarity and dissimilarity between semiconductors and superconductors bring a deep understanding of superconductor quantum detectors. Unexpectedly, even in semiconductor detectors, there are unsolvedUnsolved issues on the average energy ε consumed for generating one electron–hole (e–h) pair and the Fano factor. Additionally, superconductor quantum detectors encounter a problem of spatial inhomogeneity of detector output with respect to particle absorption locations. Physics of superconductor quantum detectors is lacking in some fundamental data, which represents an important area for future research. Nevertheless, the superconductor quantum detectors achieve an energy resolution of 2–4 eV in a soft X-raySoft X-ray range below 1 keV and a high count rateCount rate of ~ 200 kcps, which enables high throughput imaging analysis of advanced materials.