Design and characterization of TES bolometers and SQUID readout electronics for a balloon-borne application
2008
We present measurements of the electrical and thermal properties of new arrays of bolometeric detectors that
were fabricated as part of a program to develop bolometers optimized for the low photon background of the EBEX
balloon-borne experiment. An array consists of 140 spider-web transition edge sensor bolometers microfabricated
on a 4" diameter silicon wafer. The designed average thermal conductance (see manuscript) of bolometers on a proto-type
array is 32 pW/K, and measurements are in good agreement with this value. The measurements are taken with
newly developed, digital frequency domain multiplexer SQUID readout electronics.
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