Low noise cryogenic electronics: preamplifier configurations with feedback on the bolometer
نویسندگان
چکیده
منابع مشابه
1 Low noise cryogenic electronics : preamplifier configurations with feedback on the bolometer
We developed preamplifier configurations used to readout resistive bolometers such as those based on Neutron Transmuted Doped Germanium thermometers (so called NTD Ge thermometers)[1] or NbSi thin film thermometers [2, 3]. We introduce the impedance regulating preamplifier configuration. This configuration, is compared to previously proposed readout configurations with feedback on the bolometer...
متن کاملLow noise cryogenic electronics : preamplifier configurations with feedback on the bolometer
We discuss the various electronic configurations one can use to readout resistive bolometers such as those based on Neutron Transmuted Doped Germanium thermometers (so called NTD Ge thermometers)[1] or NbSi thin film thermometers [2, 3]. The simple voltage amplifier configuration, is compared to readout configurations with feedback on the bolometer. Using the adiabatic thermal model of bolomete...
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We describe the design, schematics, and performances of a very-low-noise, low-frequency preamplifier. It operates in the 5 Hz-100 kHz range and offers an input equivalent voltage noise density as low as 65 pV/ ,/I%; the current noise increases with frequency and settles to about 1.5 pA/ @ at 100 kHz. The amplifier uses input and feedback signal transformers and operates in full differential mod...
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Significant advances in the development of high electron-mobility field-effect transistors (HEMTs) have resulted in cryogenic, low-noise amplifiers (LNAs) whose noise temperatures are within an order of magnitude of the quantum noise limit (hf/k). Further advances in HEMT technology at cryogenic temperatures may eventually lead to the replacement of maser and superconducting–insulator– supercon...
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Transition-edge-sensor (TES) bolometers are the chosen detector technology for the SAFARI Imaging Spectrometer on the SPICA telescope. For this mission, SRON is developing bolometers, each consisting of a TiAu TES that is weakly coupled to the thermal bath through thin legs of silicon nitride. In order to understand and optimize the bolometer and to verify our detector models, we characterize t...
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 2000
ISSN: 0018-9499,1558-1578
DOI: 10.1109/23.846276