INCLUSIVE MODEL-BASED X-RAY-DETECTION CHARACTERISTICS OF SUPERCONDUCTING TUNNEL-JUNCTIONS

Superconducting tunnel junctions in use for X-ray detection are expect ed to produce an excellent energy resolution. An inclusive model is em ployed to give an overview of the detector characteristics. This metho d is devised to implicitly take properties of superconductor materials into account. With introducing an empirical relationship between junc tion parameters, the detector characteristics such as signal magnitude and energy resolution are reproduced to an acceptable degree. This me thod gives a helpful suggestion for understanding the detector perform ance such as a Fano-like factor, and may also serve as a guide line fo r designing tunnel junctions.