Dual-detector for simultaneous time and energy measurements with superconductive detectors
Academic Article
Publication Date:
2004
abstract:
The development of a superconductive detector for simultaneous measurement of energy and arrival time is reported.
The detector consists of two superconducting tunnel junctions coupled through a passive network. The first junction
operates in the quasi-particle regime and measures the energy absorbed by counting the total charge that tunnels. The
second junction uses the DC Josephson effect to act as a fast discriminator for the onset of surplus current in the first
junction. The feasibility of the detector is demonstrated through simultaneous time and energy measurements of 6 keV
X-rays. A model of the detector is presented and numerical simulations show good correspondence with experimental data.
The detector consists of two superconducting tunnel junctions coupled through a passive network. The first junction
operates in the quasi-particle regime and measures the energy absorbed by counting the total charge that tunnels. The
second junction uses the DC Josephson effect to act as a fast discriminator for the onset of surplus current in the first
junction. The feasibility of the detector is demonstrated through simultaneous time and energy measurements of 6 keV
X-rays. A model of the detector is presented and numerical simulations show good correspondence with experimental data.
Iris type:
01.01 Articolo in rivista
Keywords:
non-equilibrium superconductivity; Josephson junction; radiation detector; time discriminator
List of contributors: