scholarly journals Transformer Coupling and Its Modelling for the Flux-Ramp Modulation of rf-SQUIDs

Instruments ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 3 ◽  
Author(s):  
Paolo Carniti ◽  
Lorenzo Cassina ◽  
Marco Faverzani ◽  
Elena Ferri ◽  
Andrea Giachero ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
Quantum Interference ◽  
Signal Reconstruction ◽  
Transition Edge Sensors ◽  
Open Loop ◽  
Inductively Coupled ◽  
Transition Edge ◽  
Rf Squids ◽  
Rf Squid

Microwave SQUID (Superconducting QUantum Interference Device) multiplexing is a suitable technique for reading a large number of detector channels, using only a few connecting lines. In the HOLMESexperiment, this is based on inductively coupled rf-SQUIDs fed by TES (Transition Edge Sensors). Operation of the whole rf-SQUID chain is achieved with a single transmission line, by means of the recently introduced flux-ramp modulation technique—a sawtooth signal which allows signal reconstruction while operating the rf-SQUIDs in an open loop condition. Due to the crucial role of the sawtooth signal, it is very important that it does not suffer from ground-loop disturbances and electromagnetic interference (EMI). Introducing a transformer between the sawtooth source and the SQUID is very effective in suppressing disturbances. The sawtooth signal has both slow and fast components, and the frequency can vary between a few kHz up to a MHz, depending on the TES signal and SQUID characteristics. A transformer able to handle such a broad range of conditions must have very stringent characteristics and needs to be custom designed. Our solution exploits standard commercial and inexpensive transformers for LAN networks, stacked in a user-selectable number, to better fit the bandwidth requirements. A model that allows handling of the low- and high-frequency operating range has been developed.

Interfacial And Surface Study Of Mo-Au And Al-Ag Bilayers For Si-Based Photodetectors

1999 ◽  
Vol 5 (S2) ◽  
pp. 164-165
Author(s):  
Mary J. Li ◽  
S. Aslam ◽  
T.C. Chen ◽  
F.M. Finkbeiner ◽  
C. He ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Quantum Interference ◽  
Ultra Violet ◽  
Incident Radiation ◽  
Transition Edge Sensors ◽  
Normal Metal ◽  
Superconducting Transition ◽  
Transition Edge ◽  
Superconductor Film ◽  
Superconducting Metal

Bilayer thin films have been utilized in superconducting transition-edge sensors (TES) for photodetector development. A TES is formed with a normal metal conductor film and a superconductor film, so called bilayer, deposited on a subtract. In its,transition temperature region, the resistance of the superconductor film is extremely sensitive to the temperature. When an incident radiation ray arrives, the temperature of the bilayer increases, leading the resistance increases tremendously. A superconducting quantum interference device measures the current variation for read-out. By varying the relative thickness of the normal metal conductor layer and the superconductor layer, one can adjust the transition temperature of the bilayer to a desired range according to the proximity effect. TES bilayers are fabricated on Si-based substrates for the development of infrared, ultra-violet, and x-ray detectors.Various normal and superconducting metal combinations are considered as bilayer candidates. When two metals are brought together, the concerns usually rise to those materials issues that may affect TES performance.

Time-division superconducting quantum interference device multiplexer for transition-edge sensors

2003 ◽  
Vol 74 (8) ◽  
pp. 3807-3815 ◽  
Author(s):  
Piet A. J. de Korte ◽  
Joern Beyer ◽  
Steve Deiker ◽  
Gene C. Hilton ◽  
Kent D. Irwin ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Transition Edge Sensors ◽  
Superconducting Quantum Interference Device ◽  
Superconducting Quantum Interference ◽  
Transition Edge ◽  
Time Division

scholarly journals Development of transition edge sensors with rf-SQUID based multiplexing system for the HOLMES experiment

2017 ◽  
Vol 888 ◽  
pp. 012069 ◽  
Author(s):  
A Puiu ◽  
D Becker ◽  
D Bennett ◽  
M Faverzani ◽  
E Ferri ◽  
...  
Keyword(s):  
Transition Edge Sensors ◽  
Transition Edge ◽  
Rf Squid

scholarly journals A Review on Metamaterials for Device Applications

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 518
Author(s):  
N. Suresh Kumar ◽  
K. Chandra Babu Naidu ◽  
Prasun Banerjee ◽  
T. Anil Babu ◽  
B. Venkata Shiva Reddy
Keyword(s):  
Quantum Interference ◽  
Effective Properties ◽  
Photonic Devices ◽  
Vital Role ◽  
Major Type ◽  
Electric Permittivity ◽  
Superconducting Quantum Interference Devices ◽  
Device Applications ◽  
Microwave Sensors

Metamaterials are the major type of artificially engineered materials which exhibit naturally unobtainable properties according to how their microarchitectures are engineered. Owing to their unique and controllable effective properties, including electric permittivity and magnetic permeability, the metamaterials play a vital role in the development of meta-devices. Therefore, the recent research has mainly focused on shifting towards achieving tunable, switchable, nonlinear, and sensing functionalities. In this review, we summarize the recent progress in terahertz, microwave electromagnetic, and photonic metamaterials, and their applications. The review also encompasses the role of metamaterials in the advancement of microwave sensors, photonic devices, antennas, energy harvesting, and superconducting quantum interference devices (SQUIDs).

scholarly journals Authentication and Traceability Study on Barbera d’Asti and Nizza DOCG Wines: The Role of Trace- and Ultra-Trace Elements

Beverages ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 63
Author(s):  
Maurizio Aceto ◽  
Federica Gulino ◽  
Elisa Calà ◽  
Elisa Robotti ◽  
Maurizio Petrozziello ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Multivariate Data Analysis ◽  
Market Value ◽  
Elemental Distribution ◽  
Average Price ◽  
Chemical Markers ◽  
Grape Variety ◽  
Inductively Coupled ◽  
Ultra Trace

Barbera d’Asti—including Barbera d’Asti superiore—and Nizza are two DOCG (Denominazione di Origine Controllata e Garantita) wines produced in Piemonte (Italy) from the Barbera grape variety. Differences among them arise in the production specifications in terms of purity, ageing, and zone of production, in particular with concern to Nizza, which follows the most stringent rules, sells at three times the average price, and is considered to have the highest market value. To guarantee producers and consumers, authentication methods must be developed in order to distinguish among the different wines. As the production zones totally overlap, it is important to verify whether the distinction is possible or not according to metals content, or whether chemical markers more linked to winemaking are needed. In this work, Inductively Coupled Plasma (ICP) elemental analysis and multivariate data analysis are used to study the authentication and traceability of samples from the three designations of 2015 vintage. The results show that, as far as elemental distribution in wine is concerned, work in the cellar, rather than geographic provenance, is crucial for the possibility of distinction.

Characterization and reduction of noise in Mo/Au transition edge sensors

2004 ◽  
Vol 520 (1-3) ◽  
pp. 348-350 ◽  
Author(s):  
Mark A. Lindeman ◽  
Simon Bandler ◽  
Regis P. Brekosky ◽  
James A. Chervenak ◽  
Enectali Figueroa-Feliciano ◽  
...  
Keyword(s):  
Transition Edge Sensors ◽  
Transition Edge

A Study of the Excess Noise of Ir Transition Edge Sensors in the Frame of Statistical Models

2009 ◽  
Vol 19 (3) ◽  
pp. 445-450 ◽  
Author(s):  
D. Bagliani ◽  
D.F. Bogorin ◽  
E. Celasco ◽  
M. Celasco ◽  
R. Eggenhoffner ◽  
...  
Keyword(s):  
Statistical Models ◽  
Transition Edge Sensors ◽  
Excess Noise ◽  
Transition Edge
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