Feasibility of KTa1-xNbxO3 as a dielectric or pyroelectric microcalorimeter

Timothy E. Pfafman; Eric H. Silver; Simon E. Labov; Jeffrey W. Beeman; Fred S. Goulding; Don A. Landis; Norman W. Madden

doi:10.1117/12.130698

8 October 1992 Feasibility of KTa_1-xNb_xO₃ as a dielectric or pyroelectric microcalorimeter

Timothy E. Pfafman, Eric H. Silver, Simon E. Labov, Jeffrey W. Beeman, Fred S. Goulding, Don A. Landis, Norman W. Madden

Author Affiliations +

Proceedings Volume 1743, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy III; (1992) https://doi.org/10.1117/12.130698
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

We are developing a dielectric microcalorimeter for X-ray spectroscopy. We will present the results of our measurement of the dielectric permittivity, the spontaneous polarization, and the pyroelectric coefficient of the mixed-crystal quantum ferroelectric KTa(1-x)Nb(x)O3 with a doping of x = 0.012, as a function of temperature and bias voltage across the device. The effects of surface layers on the permittivity and the pyroelectric coefficient are discussed. We also show the signal results from infrared LED and alpha-particle radiation.

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Timothy E. Pfafman, Eric H. Silver, Simon E. Labov, Jeffrey W. Beeman, Fred S. Goulding, Don A. Landis, and Norman W. Madden "Feasibility of KTa_1-xNb_xO₃ as a dielectric or pyroelectric microcalorimeter", Proc. SPIE 1743, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy III, (8 October 1992); https://doi.org/10.1117/12.130698

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