Abstract
Frequency-domain multiplexing (FDM) is the baseline readout system for the X-ray Integral Field Unit on board the Athena mission. Under the FDM scheme, TESs are coupled to a passive LC filter and biased with alternating current (AC bias) at MHz frequencies. Using high-quality-factor LC filters and room-temperature electronics developed at SRON and low-noise two-stage SQUID amplifiers provided by VTT, we have recently demonstrated good performance with the FDM readout of Mo/Au TES calorimeters with Au/Bi absorbers. We have achieved a performance requested for the demonstration model with the single-pixel AC bias (ΔE=1.8eV) and nine-pixel multiplexing (ΔE=2.6eV) modes. We have also demonstrated 14-pixel multiplexing with an average energy resolution of 3.3 eV, which is limited by nonfundamental issues related to FDM readout in our laboratory setup.
| Original language | English |
|---|---|
| Journal | Journal of Low Temperature Physics |
| DOIs | |
| Publication status | Accepted/In press - 1 Jan 2020 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- Athena
- Transition-edge sensors
- X-IFU
- X-ray astronomy
- X-ray calorimeters
Cite this
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Progress in the Development of Frequency-Domain Multiplexing for the X-ray Integral Field Unit on Board the Athena Mission. / Akamatsu, H. (Corresponding Author); Gottardi, L.; van der Kuur, J.; de Vries, C. P.; Bruijn, M. P.; Chervenak, J. A.; Kiviranta, M.; van den Linden, A. J.; Jackson, B. D.; Miniussi, A.; Ravensberg, K.; Sakai, K.; Smith, S. J.; Wakeham, N.
In: Journal of Low Temperature Physics, 01.01.2020.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Progress in the Development of Frequency-Domain Multiplexing for the X-ray Integral Field Unit on Board the Athena Mission
AU - Akamatsu, H.
AU - Gottardi, L.
AU - van der Kuur, J.
AU - de Vries, C. P.
AU - Bruijn, M. P.
AU - Chervenak, J. A.
AU - Kiviranta, M.
AU - van den Linden, A. J.
AU - Jackson, B. D.
AU - Miniussi, A.
AU - Ravensberg, K.
AU - Sakai, K.
AU - Smith, S. J.
AU - Wakeham, N.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Frequency-domain multiplexing (FDM) is the baseline readout system for the X-ray Integral Field Unit on board the Athena mission. Under the FDM scheme, TESs are coupled to a passive LC filter and biased with alternating current (AC bias) at MHz frequencies. Using high-quality-factor LC filters and room-temperature electronics developed at SRON and low-noise two-stage SQUID amplifiers provided by VTT, we have recently demonstrated good performance with the FDM readout of Mo/Au TES calorimeters with Au/Bi absorbers. We have achieved a performance requested for the demonstration model with the single-pixel AC bias (ΔE=1.8eV) and nine-pixel multiplexing (ΔE=2.6eV) modes. We have also demonstrated 14-pixel multiplexing with an average energy resolution of 3.3 eV, which is limited by nonfundamental issues related to FDM readout in our laboratory setup.
AB - Frequency-domain multiplexing (FDM) is the baseline readout system for the X-ray Integral Field Unit on board the Athena mission. Under the FDM scheme, TESs are coupled to a passive LC filter and biased with alternating current (AC bias) at MHz frequencies. Using high-quality-factor LC filters and room-temperature electronics developed at SRON and low-noise two-stage SQUID amplifiers provided by VTT, we have recently demonstrated good performance with the FDM readout of Mo/Au TES calorimeters with Au/Bi absorbers. We have achieved a performance requested for the demonstration model with the single-pixel AC bias (ΔE=1.8eV) and nine-pixel multiplexing (ΔE=2.6eV) modes. We have also demonstrated 14-pixel multiplexing with an average energy resolution of 3.3 eV, which is limited by nonfundamental issues related to FDM readout in our laboratory setup.
KW - Athena
KW - Transition-edge sensors
KW - X-IFU
KW - X-ray astronomy
KW - X-ray calorimeters
UR - http://www.scopus.com/inward/record.url?scp=85078438960&partnerID=8YFLogxK
U2 - 10.1007/s10909-020-02351-3
DO - 10.1007/s10909-020-02351-3
M3 - Article
AN - SCOPUS:85078438960
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
SN - 0022-2291
ER -