Author/Authors :
Kishimoto، نويسنده , , M and Katagiri، نويسنده , , M and Nakamura، نويسنده , , T and Ohkubo، نويسنده , , M and Ukibe، نويسنده , , Kurakado، نويسنده , , M and Kanno، نويسنده , , I and Fukuda، نويسنده , , D and Takahashi، نويسنده , , H and Kraus، نويسنده , , H and Nakazawa، نويسنده , , M، نويسنده ,
Abstract :
We have developed a fast current readout system for STJ detectors with a fast current preamplifier by direct signal observation. The preamplifier has frequency bandwidth of 110 MHz with stable voltage bias operation. By the various experiments using a Ta STJ and Nb STJ, it is confirmed that the readout system is effective for the evaluation of STJs, research of the mechanism for signal production process and the X-ray detection with high counting rate.
