• Title of article

    High resolution X-ray detection by Nb-based STJ and 4-JFETs low noise amplifier

  • Author/Authors

    Kishimoto، نويسنده , , M and Ukibe، نويسنده , , M and Katagiri، نويسنده , , M and Nakazawa، نويسنده , , Kurakado، نويسنده , , M، نويسنده ,

  • Pages
    2
  • From page
    126
  • To page
    127
  • Abstract
    We have made up a low noise charge sensitive amplifier with cooled 4-JFETs for a large area superconducting tunnel junction (STJ). These JFETs were operated at about 130 K. Each JFET (2SK190) dissipates about 15 mW. A high energy resolution of 73 eV for 5.9 keV X-rays and 61 eV for pulser signals have been achieved with a 178 μm × 178 μm Nb/AlAlOx/Al/Nb STJ having a junction capacitance of 1900 pF.
  • Journal title
    Astroparticle Physics
  • Record number

    1996999

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=1996999