Achieving large-area detectors with three-dimensional implementation structure superconducting devices!
Nanotechnology (Saitama University Research Seed Collection 2025-25 p.112)
Keywords: superconducting detector, X-rays, neutrons, high resolution, 3D implementation
Superconducting sensors have a sensitivity that cannot be achieved by other sensors. High sensitivity means that things that were previously invisible can now be seen. Although superconducting sensors have excellent performance, a drawback is that the effective area per pixel is small. To overcome this, the superconducting industry has focused on three-dimensional implementation, which is rarely pursued. Three-dimensional implementation involves stacking substrates that contain the devices in the vertical direction. The advantage of this is that, whereas devices could only be arranged in a plane, or two-dimensional space, the arrangement can now be extended in the height direction. While it is a simple structure, realizing it is quite challenging, and we are making progress in our research step by step while discussing it with students every day.
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Toru Tainno, Associate Professor Graduate School of Science and Engineering, Department of Mathematical and Electronic Information, Field of Electrical and Electronic Physics 【Recent Research Themes】 ● Development of dark matter detectors using superconducting detectors ● Development of neutron detectors using superconducting detectors ● Research on 3D implementation of superconducting devices ● Challenging the theoretical limits of superconducting detectors
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【Appeal Points to the Industry】 ● Realization of high-sensitivity sensors with a large area and minimal dead zone ● Ability to respond to various photons through the selection of absorbers ● Support for 3D implementation in low-temperature fields, including the attention-grabbing superconducting quantum computers ● Patent currently under application 【Examples of Practical Use, Applications, and Utilization】 ● Security sensors using terahertz waves ● Non-destructive testing of infrastructure structures using neutrons ● Radiation inspection in the medical and food sectors
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The Saitama University Open Innovation Center is a center that functions as a liaison office for industry-academia-government collaboration. It consists of three departments: the Industry-Academia-Government Collaboration Department, the Intellectual Property Department, and the Startup Support Department, each staffed with coordinators well-versed in various fields. The center's activities include solving technical challenges in companies, supporting the implementation of joint research, and conducting technology transfer aimed at introducing and utilizing Saitama University's intellectual property.