Optimization of transition edge sensor arrays for cosmic microwave background observations with the south pole telescope
Here, we describe the optimization of transition-edge-sensor (TES) detector arrays for the third-generation camera for the South Pole Telescope.The camera, which contains ~16 000 detectors, will make high-angular-resolution maps of the temperature and polarization of the cosmic microwave background....
Published in: | IEEE Transactions on Applied Superconductivity |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Language: | unknown |
Published: |
2022
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Subjects: | |
Online Access: | http://www.osti.gov/servlets/purl/1347708 https://www.osti.gov/biblio/1347708 https://doi.org/10.1109/TASC.2016.2639378 |
Summary: | Here, we describe the optimization of transition-edge-sensor (TES) detector arrays for the third-generation camera for the South Pole Telescope.The camera, which contains ~16 000 detectors, will make high-angular-resolution maps of the temperature and polarization of the cosmic microwave background. Our key results are scatter in the transition temperature of Ti/Au TESs is reduced by fabricating the TESs on a thin Ti(5 nm)/Au(5 nm) buffer layer and the thermal conductivity of the legs that support our detector islands is dominated by the SiOx dielectric in the microstrip transmission lines that run along the legs. |
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