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Position sensitive x-ray spectrophotometer using microwave kinetic inductance detectors

Mazin, Benjamin A. and Bumble, Bruce and Day, Peter K. and Eckart, Megan E. and Golwala, Sunil and Zmuidzinas, Jonas and Harrison, Fiona A. (2006) Position sensitive x-ray spectrophotometer using microwave kinetic inductance detectors. Applied Physics Letters, 89 (22). Art. No. 222507. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:MAZapl06

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Abstract

The surface impedance of a superconductor changes when energy is absorbed and Cooper pairs are broken to produce single electron (quasiparticle) excitations. This change may be sensitively measured using a thin-film resonant circuit called a microwave kinetic inductance detector (MKID). The practical application of MKIDs for photon detection requires a method of efficiently coupling the photon energy to the MKID. The authors present results on position sensitive x-ray detectors made by using two aluminum MKIDs on either side of a tantalum photon absorber strip. Diffusion constants, recombination times, and energy resolution are reported. MKIDs can easily be scaled into large arrays.


Item Type:Article
ORCID:
AuthorORCID
Golwala, Sunil0000-0002-1098-7174
Harrison, Fiona A.0000-0003-2992-8024
Additional Information:© 2006 American Institute of Physics (Received 30 August 2006; accepted 5 October 2006; published online 29 November 2006) The research described in this letter was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. This work was supported in part by JPL Research and Technology Development funds and by NASA Grant No. NAG5-5322 to one of the authors (F.A.H.). The authors would like to thank Rick LeDuc, Jiansong Gao, Dan Prober, and Luigi Frunzio for useful discussions.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
JPL Research and Technology Development FundUNSPECIFIED
NASANAG5-5322
Subject Keywords:X-ray spectrometers; spectrophotometers; inductance measurement; microwave detectors
Issue or Number:22
Record Number:CaltechAUTHORS:MAZapl06
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:MAZapl06
Alternative URL:http://dx.doi.org/10.1063/1.2390664
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6414
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:07 Dec 2006
Last Modified:11 Dec 2016 23:27

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