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Vaccaro, D. (author), Akamatsu, H. (author), Gottardi, L (author), Van Der Kuur, J. (author), Taralli, E. (author), de Wit, M. (author), Bruijn, MP (author), den Hartog, R (author), Gao, J.R. (author)We present a characterization of the sensitivity of TES X-ray micro-calorimeters to environmental conditions under frequency-domain multiplexing (FDM) readout. In the FDM scheme, each TES in a readout chain is in series with a LC band-pass filter and AC biased with an independent carrier at MHz range. Using TES arrays, cold readout circuitry and...journal article 2022
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Vaccaro, Davide (author), Akamatsu, Hiroki (author), Bruijn, Marcel (author), Gottardi, Luciano (author), Den Hartog, Roland (author), Van Der Kuur, Jan (author), Ridder, Marcel (author), De Wit, Martin (author), Gao, J.R. (author)We have measured and characterized the thermal crosstalk in two different arrays of transition-edge sensor (TES) X-ray microcalorimeters with frequency-domain multiplexing (FDM) readout. The TES arrays are fabricated at SRON and are a 8 × 8 and a 32 × 32 'kilo-pixel' uniform array. The amount of crosstalk is evaluated as the ratio between the...journal article 2022
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Wang, Q. (author), Khosropanah, P. (author), Van Der Kuur, J. (author), de Lange, G. (author), Audley, M. D. (author), Aminaei, A. (author), Ilyas, S. (author), van der Tak, F.M. (author), Gao, J.R. (author)We demonstrate multiplexed readout of 43 transition edge sensor (TES) bolometers operating at 90 mK using a frequency division multiplexing (FDM) readout chain with bias frequencies ranging from 1 to 3.5 MHz and a typical frequency spacing of 32 kHz. We improve the previously reported performance of our FDM system by two important steps....journal article 2022
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Wang, Q. (author), Khosropanah, P. (author), Van Der Kuur, J. (author), de Lange, G. (author), Audley, M. D. (author), Aminaei, A. (author), Ridder, M.L. (author), Van Der Linden, A. J. (author), Bruijn, M. P. (author), Gao, J.R. (author)We demonstrate multiplexing readout of 60 transition edge sensor (TES) bolometers operating at 90 mK using a frequency division multiplexing readout chain with bias frequencies ranging from 1 to 3.5 MHz and with a typical frequency spacing of 32 kHz. The readout chain starts with a two-stage SQUID amplifier and has a noise level of 9.5 pA/ Hz...journal article 2021