Feasibility of KTa(1-x)Nb(x)O3 as a dielectric or pyroelectric microcalorimeterWe 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.
Document ID
19930045517
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pfafman, T. E. (California Univ. Berkeley, United States)
Silver, E. (NASA Headquarters Washington, DC United States)
Labov, S. (Lawrence Livermore National Lab. Livermore, CA, United States)
Beeman, J. (NASA Headquarters Washington, DC United States)
Goulding, F. (NASA Headquarters Washington, DC United States)
Landis, D. (NASA Headquarters Washington, DC United States)
Madden, N. (Lawrence Berkeley Lab. Berkeley, CA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: EUV, X-ray, and gamma-ray instrumentation for astronomy III; Proceedings of the Meeting, San Diego, CA, July 22-24, 1992 (A93-29476 10-35)
Publisher: Society of Photo-Optical Instrumentation Engineers