@inproceedings{9c47cad00d54404f94ee4a5d6d8dbf57,
title = "Analysis of a Josephson junction noise Thermometer with a DC-SQUID preamplifier",
abstract = "A Josephson junction noise thermometer directly coupled to a low noise preamplifier is analyzed. The absolute determination of temperature is disturbed by several effects: mixed down noise, additive noise, post-detection filter, etc. The analysis presented here takes these error sources into account, and the accuracy of the thermometer is estimated. The analysis shows that, exactly like an rf-biased i2-SQUID noise thermometer, a directly coupled noise thermometer is ultimately limited by the noise temperature of the preamplifier. Since the noise temperature of a state-of-the-art dc SQUID amplifier is excellent, sufficiently low uncertainty (less than 1%) can be obtained, even below 1 mK.",
keywords = "Josephson junction",
author = "Heikki Sepp{\"a}",
note = "Project code: S{\"A}H 2207; 4th International Conference SQUID {\textquoteright}91 ; Conference date: 18-06-1992 Through 21-06-1992",
year = "1992",
doi = "10.1007/978-3-642-77457-7_81",
language = "English",
isbn = "978-3-642-77459-1",
series = "Springer Proceedings in Physics",
publisher = "Springer",
pages = "460--465",
editor = "Hans Koch and Heinz L{\"u}bbig",
booktitle = "Superconducting Devices and Their Applications",
address = "Germany",
}