Author/Authors :
Oku، نويسنده , , T and Ikeda، نويسنده , , T and Kato، نويسنده , , H and Kawai، نويسنده , , K and Miyasaka، نويسنده , , H and Ootani، نويسنده , , W and Otani، نويسنده , , C and Sato، نويسنده , , H and Shimizu، نويسنده , , H.M and Takizawa، نويسنده , , Y and Watanabe، نويسنده , , H and Nakagawa، نويسنده , , H and Akoh، نويسنده , , H and Aoyagi، نويسنده , , M and Taino، نويسنده , , T، نويسنده ,
Abstract :
We are developing high-resolution X-ray detectors based on superconducting tunnel junctions (STJs). A two-stage superconducting quantum-interference device (SQUID) amplifier with high gain, low noise and high sensitivity was employed as a readout electronic device. We have developed the STJ readout circuit which makes it possible to optimize the STJ bias condition without disturbing the operating point of the SQUID amplifier. High-resolution X-ray detectors using our system is discussed.
