title: Design and construction of high-sensitivity, infrared bolometers for operation at 300 mK.
abstract: The design and construction of 300-mK composite bolometers developed for millimeter-wave astronomical observations are described. Graphite fibers are used as the electrical leads for the thermistor to reduce the thermal conductance and heat capacity associated with the leads. A mechanical suspension made of Nylon fibers odes the required thermal conductance. Electrical noise equivalent powers below 1 x 10(-16) W/ radicalHz have been achieved for detectors with thermal time constants of 11 ms. The detectors were installed in a millimeter-wave photometer and used to perform observations of the cosmic microwave background from a balloonborne platform. The flight performance was consistent with the measured laboratory properties.
authors: D C
authors: DC
authors: Alsop
authors: C
authors: C
authors: Inman
authors: A E
authors: AE
authors: Lange
authors: T
authors: T
authors: Wilbanks