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Nagayoshi, K. (author), de Wit, M. (author), Taralli, E. (author), Visser, S. (author), Ridder, M. L. (author), Gottardi, L. (author), Akamatsu, H. (author), Vaccaro, D. (author), Gao, J.R. (author)
We report measured T<sub>c</sub> of superconducting Ti/Au bilayer strips with a width W varying from 5 to 50 µm. The strips were fabricated based on a Ti/Au bilayer that consists of a 41-nm-thick Ti layer to which a 280-nm-thick Au layer was added. We find that the T<sub>c</sub> drops as W decreases and the declining trend almost perfectly...
journal article 2022
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Taralli, E. (author), de Wit, M. (author), Gottardi, L. (author), Nagayoshi, K. (author), Visser, S. (author), Ridder, M.L. (author), Akamatsu, H. (author), Vaccaro, D. (author), Gao, J.R. (author)
Large arrays of transition edge sensors (TESs) are the baseline for a number of future space observatories. For instance, the X-ray integral field unit (X-IFU) instrument on board the ATHENA space telescope will consist of ∼ 3000 TESs with high energy resolution (2eV at X-ray energies up to 7 keV). In this contribution we report on the...
journal article 2022
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Nagayoshi, K. (author), Ridder, M. L. (author), Bruijn, M. P. (author), Gottardi, L. (author), Taralli, E. (author), Khosropanah, P. (author), Akamatsu, H. (author), Visser, S. (author), Gao, J.R. (author)
We are developing a transition edge sensor (TES) microcalorimeter array based on a Ti/Au superconducting bilayer, as a backup option for the X-IFU instrument on the Athena X-ray observatory. The array is read out by a frequency-division multiplexing readout system using a 1–5 MHz frequency band. Extensive research collaborations between NASA...
journal article 2019
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