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RESEARCH PRODUCT

Transition-edge microcalorimeters for X-ray space applications

Heikki SipiläK. M. KinnunenJukka P. PekolaAntti NuottajärviArttu Luukanen

subject

PhysicsSuperconductivitybusiness.industryBolometerX-rayMicrobolometerCondensed Matter PhysicsSpace (mathematics)Electronic Optical and Magnetic MaterialsCalorimeterlaw.inventionSQUIDOpticslawThermometerOptoelectronicsElectrical and Electronic Engineeringbusiness

description

Abstract In an European Space Agency funded research project, our goal is to develop microbolometer technology for X-ray and far-infrared detection for ESA's future scientific missions. We report results on the X-ray calorimeter, which is based on the superconducting transition of the Ti/Au thermometer strip at about 200 mK. Incident X-rays heat up a Bi absorber, deposited on top of the 400 μm ×400 μm thermometer. The temperature rise of the absorber is measured as a change of the thermometer current with a SQUID operating at 1 K.

https://doi.org/10.1016/s0921-4526(99)03046-x