43 citations · 470 across the 41 of their papers we have counts for
41 papers
Ground calibration plan for the Athena/X-IFU microcalorimeter spectrometer
Alexeï Molin, François Pajot, Marc Audard +24
The X-ray Integral Field Unit is the X-ray imaging spectrometer on-board one of ESA's next large missions, Athena. Athena is set to investigate the theme of the Hot and Energetic U…
System performance of a cryogenic test-bed for the time-division multiplexing readout for NewAthena X-IFU
Davide Vaccaro, Jan van der Kuur, Paul van der Hulst +23
The X-ray Integral Field Unit (X-IFU) is an instrument of ESA's future NewAthena space observatory, with the goal to provide high-energy resolution ( 4 eV at X-ray energies up t…
Developments on frequency domain multiplexing readout for large arrays of transition-edge sensor X-ray micro-calorimeters
D. Vaccaro, H. Akamatsu, L. Gottardi +8
At SRON we have been developing X-ray TES micro-calorimeters as backup technology for the X-ray Integral Field Unit (X-IFU) of the Athena mission, demonstrating excellent resolving…
System performance of a TDM test-bed with long flex harness towards the new X-IFU FPA-DM
D. Vaccaro, M. de Wit, J. van der Kuur +17
SRON (Netherlands Institute for Space Research) is developing the Focal Plane Assembly (FPA) for Athena X-IFU, whose Demonstration Model (DM) will use for the first time a time dom…
Demonstration of Weak-Link Physics in the Dynamical Response of Transition-Edge Sensors
Marios Kounalakis, Luciano Gottardi, Martin de Wit +1
We theoretically predict and experimentally observe the onset of weak-link physics in the dynamical response of transition edge sensors (TES). We develop a theoretical framework ba…
Voltage Fluctuations in ac Biased Superconducting Transition-Edge Sensors
L. Gottardi, M. de Wit, E. Taralli +2
We present a detailed analysis of the fundamental noise sources in superconducting transition-edge sensors (TESs), ac voltage biased at MHz frequencies and treated as superconducti…
Frequency domain multiplexing readout for large arrays of transition-edge sensors
Davide Vaccaro, Hiroki Akamatsu, Luciano Gottardi +13
We report our most recent progress and demonstration of a frequency domain multiplexing (FDM) readout technology for transition-edge sensor (TES) arrays, both of which we have been…
Performance of the SRON Ti/Au Transition Edge Sensor X-ray Calorimeters
Martin de Wit, Luciano Gottardi, Kenichiro Nagayoshi +7
In the early 2030s, ESAs new X-ray observatory, Athena, is scheduled to be launched. It will carry two main instruments, one of which is the X-ray Integral Field Unit (X-IFU), an X…
Susceptibility study of TES micro-calorimeters for X-ray spectroscopy under FDM readout
Davide Vaccaro, Hiroki Akamatsu, Luciano Gottardi +15
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, e…
Mitigation of the Magnetic Field Susceptibility of Transition Edge Sensors using a Superconducting Groundplane
Martin de Wit, Luciano Gottardi, Marcel L. Ridder +7
Transition edge sensor (TES) microcalorimeters and bolometers are used for a variety of applications. The sensors are based on the steep temperature-dependent resistance of the nor…
The Athena X-ray Integral Field Unit: a consolidated design for the system requirement review of the preliminary definition phase
Didier Barret, Vincent Albouys, Jan-Willem den Herder +296
The Athena X-ray Integral Unit (X-IFU) is the high resolution X-ray spectrometer, studied since 2015 for flying in the mid-30s on the Athena space X-ray Observatory, a versatile ob…
ATHENA X-IFU Demonstration Model: First joint operation of the main TES Array and its Cryogenic AntiCoincidence Detector (CryoAC)
M. D'Andrea, K. Ravensberg, A. Argan +28
The X-IFU is the cryogenic spectrometer onboard the future ATHENA X-ray observatory. It is based on a large array of TES microcalorimeters, which works in combination with a Cryoge…
Thermal crosstalk of X-ray transition-edge sensor micro-calorimeters under frequency domain multiplexing readout
Davide Vaccaro, Hiroki Akamatsu, Marcel P. Bruijn +12
We have measured and characterized the thermal crosstalk in two different arrays of transition-edge sensor (TES) X-ray micro-calorimeters with frequency-domain multiplexing (FDM) r…
Demonstration of MHz frequency domain multiplexing readout of 37 transition edge sensors for high-resolution x-ray imaging spectrometers
H. Akamatsu, D. Vaccaro, L. Gottardi +22
We report on the development and demonstration of a MHz frequency domain multiplexing (FDM) technology to read out arrays of cryogenic transition edge sensor (TES) X-ray microcalor…
Impact of the absorber coupling design for Transition Edge Sensor X-ray Calorimeters
M. de Wit, L. Gottardi, E. Taralli +10
Transition Edge Sensors (TESs) are the selected technology for future spaceborne X-ray observatories, such as Athena, Lynx, and HUBS. These missions demand thousands of pixels to b…
High Aspect Ratio Transition Edge Sensors for X-ray Spectrometry
M. de Wit, L. Gottardi, E. Taralli +11
We are developing large TES arrays in combination with FDM readout for the next generation of X-ray space observatories. For operation under AC-bias, the TESs have to be carefully…
A test platform for the detection and readout chain for the Athena X-IFU
Gabriele Betancourt-Martinez, François Pajot, Sophie Beaumont +26
We present a test platform for the Athena X-IFU detection chain, which will serve as the first demonstration of the representative end-to-end detection and readout chain for the X-…
TiAu TES 3232 pixel array: uniformity, thermal crosstalk and performance at different X-ray energies
E. Taralli, M. D'Andrea, L. Gottardi +10
Large format arrays of transition edge sensor (TES) are crucial for the next generation of X-ray space observatories. Such arrays are required to achieve an energy resolution of $\…
AC/DC characterization of a Ti/Au TES with Au/Bi absorber for X-ray detection
E. Taralli, C. Pobes, P. Khosropanah +7
Transition-edge sensors (TESs) are used as very sensitive thermometers in microcalorimeters aimed at detection of different wavelengths. In particular, for soft X-ray astrophysics,…
Characterization of high aspect ratio TiAu TES X-ray microcalorimeters array using the X-IFU Frequency Domain Multiplexing readout
E. Taralli, L. Gottardi, K. Nagayoshi +7
We are developing X-ray microcalorimeters as a backup option for the baseline detectors in the X-IFU instrument on board the ATHENA space mission led by ESA and to be launched in t…
Complex impedance of TESs under AC bias using FDM readout system
E. Taralli, P. Khosropanah, L. Gottardi +4
The next generation of Far-infrared and X-ray space observatories will require detector arrays with thousands of transition edge sensor (TES) pixel. It is extremely important to ha…
Performance and uniformity of a kilo-pixel array of Ti/Au transition-edge sensor microcalorimeters
E. Taralli, M. D'Andrea, L. Gottardi +7
Uniform large transition-edge sensor (TES) arrays are fundamental for the next generation of X-ray space observatories. These arrays are required to achieve an energy resolution $Δ…
Single pixel performance of a 3232 Ti/Au TES array with broadband X-ray spectra
Matteo D'Andrea, Emanuele Taralli, Hiroki Akamatsu +10
We are developing a kilo-pixels Ti/Au TES array as a backup option for Athena X-IFU. Here we report on single-pixel performance of a 3232 array operated in a Frequency Divi…
Frequency Shift Algorithm: Application to a Frequency-Domain Multiplexing Readout of X-ray Transition-Edge Sensor Microcalorimeters
D. Vaccaro, H. Akamatsu, J. van der Kuur +17
In the frequency-domain multiplexing (FDM) scheme, transition-edge sensors (TES) are individually coupled to superconducting LC filters and AC biased at MHz frequencies through a c…