Thumbnail
Access Restriction
Open

Author Ulbricht, Gerhard ♦ Mazin, Benjamin A. ♦ Szypryt, Paul ♦ Walter, Alex B. ♦ Bockstiegel, Clint ♦ Bumble, Bruce
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CHARGE-COUPLED DEVICES ♦ CURRENTS ♦ DESIGN ♦ ENERGY RESOLUTION ♦ EQUIPMENT ♦ EV RANGE ♦ FABRICATION ♦ KEV RANGE 01-10 ♦ OPTIMIZATION ♦ PHOTONS ♦ SENSORS ♦ SPATIAL RESOLUTION ♦ X RADIATION ♦ X-RAY SPECTROSCOPY
Abstract For X-ray imaging spectroscopy, high spatial resolution over a large field of view is often as important as high energy resolution, but current X-ray detectors do not provide both in the same device. Thermal Kinetic Inductance Detectors (TKIDs) are being developed as they offer a feasible way to combine the energy resolution of transition edge sensors with pixel counts approaching CCDs and thus promise significant improvements for many X-ray spectroscopy applications. TKIDs are a variation of Microwave Kinetic Inductance Detectors (MKIDs) and share their multiplexibility: working MKID arrays with 2024 pixels have recently been demonstrated and much bigger arrays are under development. In this work, we present a TKID prototype, which is able to achieve an energy resolution of 75 eV at 5.9 keV, even though its general design still has to be optimized. We further describe TKID fabrication, characterization, multiplexing, and working principle and demonstrate the necessity of a data fitting algorithm in order to extract photon energies. With further design optimizations, we expect to be able to improve our TKID energy resolution to less than 10 eV at 5.9 keV.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-22
Publisher Place United States
Journal Applied Physics Letters
Volume Number 106
Issue Number 25


Open content in new tab

   Open content in new tab