| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
We have developed a 4096-pixel superconducting-tunnel-junction (STJ) array X-ray detector with detection area of 40 mm2 combining embedded superconducting wirings. The STJs have good current-voltage characteristics with a leak current of several nA, and achieved high energy resolution of about 11 eV for K line of carbon and oxygen. The developed detector has realized X-ray detection efficiency of several 100 mSr, which is about the same as that of semiconductor X-ray detectors. Therefore, the superconducting X-ray detector can achieve the high energy resolution of wavelength dispersive X-ray spectrometers and the high efficiency of semiconductor X-ray detectors.
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