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Proceedings Paper

Feasibility of KTa1-xNbxO3 as a dielectric or pyroelectric microcalorimeter
Author(s): Timothy E. Pfafman; Eric H. Silver; Simon E. Labov; Jeffrey W. Beeman; Fred S. Goulding; Don A. Landis; Norman W. Madden
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Paper 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.

Paper Details

Date Published: 8 October 1992
PDF: 11 pages
Proc. SPIE 1743, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy III, (8 October 1992); doi: 10.1117/12.130698
Show Author Affiliations
Timothy E. Pfafman, Lawrence Berkeley Lab. (United States)
Eric H. Silver, Lawrence Livermore National Lab. (United States)
Simon E. Labov, Lawrence Livermore National Lab. (United States)
Jeffrey W. Beeman, Lawrence Berkeley Lab. (United States)
Fred S. Goulding, Lawrence Berkeley Lab. (United States)
Don A. Landis, Lawrence Berkeley Lab. (United States)
Norman W. Madden, Lawrence Berkeley Lab. (United States)


Published in SPIE Proceedings Vol. 1743:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy III
Oswald H. W. Siegmund, Editor(s)

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