Journal ArticleDOI
Thermal physics of transition edge sensor arrays
TLDR
In this article, the thermal transport in high-stopping power and low-heat capacity absorbers, required for arrays of TES microcalorimeters, is discussed in combination with a performance analysis of detectors with mushroom-absorbers.Abstract:
Thermal transport in transition edge sensor (TES)-based microcalorimeter arrays is reviewed. The fundamentals of thermal conductance in Si3N4 membranes are discussed and the magnitude of the electron–phonon coupling and Kapitza coupling in practical devices is summarized. Next, the thermal transport in high-stopping power and low-heat capacity absorbers, required for arrays of TES microcalorimeters, is discussed in combination with a performance analysis of detectors with mushroom-absorbers. Finally, the phenomenology of unexplained excess noise, observed in both Mo- and Ti-based TESs, is briefly summarized and related with the coupling of the TES to the heat bath.read more
Citations
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Towards Dark Energy : design, development, and preliminary data from ACT
TL;DR: The Atacama Cosmology Telescope (ACT) and its receiver, the Millimeter Bolometer Array Camera (MBAC) were used to measure temperature anisotropies in the primordial cosmic microwave background radiation (CMB).
Transition Edge Sensor Bolometers for CMB Polarimetry
TL;DR: A superconducting transition-edge sensor (TES) is a very sensitive detector of light that can resolve individual photons at energies above the near-infrared and can operate at all wavelengths between the radio and gamma rays as discussed by the authors.
Journal ArticleDOI
Determining the thermal diffusivity in microcalorimeter absorbers and its effect on detector response
Tarek Saab,Enectali Figueroa-Feliciano,Naoko Iyomoto,S. R. Bandler,J. A. Chervenak,R. L. Kelley,C. A. Kilbourne,F. S. Porter,J. Sadleir +8 more
TL;DR: In this paper, diffusivity measurements for x-ray microcalorimeters fabricated at the NASA/GSFC were presented, showing quantitatively how a 2eV Gaussian response is distorted into a non-Gaussian profile roughly 12eV wide at an energy of 6keV for an absorber diffusivities of 104μm2∕μs.
Journal ArticleDOI
High-impedence NbSi TES sensors for studying the cosmic microwave background radiation
Claudia Nones,S. Marnieros,Alain Benoit,Laurent Bergé,Aurelien Bideau,Philippe Camus,L. Dumoulin,Alessandro Monfardini,O. Rigaut +8 more
TL;DR: In this paper, a new bolometer structure was proposed to increase the pixel sensitivities and to simplify the fabrication procedure by eliminating the mediation of phonons, and the incoming energy was directly captured and measured in the electron bath of an appropriate sensor and the thermal decoupling was achieved via the intrinsic electron-phonon decoupled of the sensor at very low temperature.
Journal ArticleDOI
Comparative Study of TiAu-Based TES Microcalorimeters with Different Geometries
H. F. C. Hoevers,M. P. Bruijn,B. Dirks,Luciano Gottardi,P. A. J. de Korte,J. van der Kuur,A. M. Popescu,Marcel L. Ridder,Yoh Takei,D. H. J. Takken +9 more
TL;DR: In this article, seven microcalorimeters with different geometries have been tested and their performance is compared, for TiAu TESs with a Cu absorber, indicating the presence of so-called constant voltage noise and internal thermal fluctuation noise.
References
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Journal ArticleDOI
Characterization and reduction of unexplained noise in superconducting transition-edge sensors
Joel N. Ullom,William B. Doriese,Gene C. Hilton,J. A. Beall,S. Deiker,W. D. Duncan,L. Ferreira,Kent D. Irwin,C. D. Reintsema,L. R. Vale +9 more
TL;DR: In this article, the amplitude and frequency dependence of the noise in superconducting transition-edge sensors with eight different geometries was measured and it was shown that the unexplained noise contribution is inversely correlated with the temperature width of the super-conducting-to-normal transition.
Journal ArticleDOI
Measurements of thermal transport in low stress silicon nitride films
TL;DR: In this paper, the authors measured the thermal conductance of 1 μm thick low stress silicon nitride membranes over the temperature range, 0.06 4 K, indicating that the thermal transport is determined by bulk scattering.