High Impedance TES Bolometers for EDELWEISS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90263%2F23%3A00371309" target="_blank" >RIV/68407700:90263/23:00371309 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s10909-022-02899-2" target="_blank" >https://doi.org/10.1007/s10909-022-02899-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10909-022-02899-2" target="_blank" >10.1007/s10909-022-02899-2</a>

Result language
angličtina
Original language name
High Impedance TES Bolometers for EDELWEISS
Original language description
The EDELWEISS collaboration aims for direct detection of light dark matter using germanium cryogenic detectors with low threshold phonon sensor technologies and efficient charge readout designs. We describe here the development of Ge bolometers equipped with high impedance thermistors based on a NbxSi1-x TES alloy. High aspect ratio spiral designs allow the TES impedance to match with JFET or HEMT front-end amplifiers. We detail the behavior of the superconducting transition properties of these sensors and the detector optimization in terms of sensitivity to a-thermal phonons. We report preliminary results of a 200 g Ge detector that was calibrated using Ge-71 activation by neutrons at the LSM underground laboratory.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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