LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Zurück zur letzten Suche Suchhistorie
Erweiterte Suche

Ihre letzten Suchen

  1. AU="Becker, D T"
  2. AU="Lewis-Lloyd, Christopher A"
  3. AU=Doshi Rupali Kotwal AU=Doshi Rupali Kotwal
  4. AU="Kore Schlottau"
  5. AU="Jamjoom, Mona"
  6. AU="Bergmann, P."
  7. AU="Li, Congju"
  8. AU="Christenson, Robert"
  9. AU="O'Neill, Hugh M"
  10. AU="Vaccaro, Daniel H."
  11. AU=Panchin Yuri V
  12. AU=McIlvennan Colleen K
  13. AU="Khan, Mohammad Afsar"
  14. AU="Zhuang, Hua-Lu"
  15. AU="Lopez, Omar M"
  16. AU=Asfaw Abay
  17. AU="Santana, Ricardo Costa de"
  18. AU="Ortega, Johis"
  19. AU="Sogaolu, Moyosore"
  20. AU="Duchesne, Gabriela"
  21. AU="Sander, Klaus"
  22. AU="Wiegersma, Aline Marileen"
  23. AU=Mehta Yatin
  24. AU="Ki Hwan Kim"
  25. AU="Gulati, Rajiv"
  26. AU="Sullivan, Christopher"
  27. AU="Meier-Stephenson, Vanessa C"
  28. AU=Kim Joo Seop
  29. AU="Mortensen, Jennifer L"
  30. AU="Manthey, Helga D"
  31. AU="Baker, Susan"
  32. AU="Gunasegaram, James R"
  33. AU="Jung, Steffen"
  34. AU="Cairns, Anita"
  35. AU="Fox, Lindsay"

Suchergebnis

Treffer 1 - 6 von insgesamt 6

Suchoptionen

  1. Artikel: Expanding the Capability of Microwave Multiplexed Readout for Fast Signals in Microcalorimeters.

    Morgan, K M / Becker, D T / Bennett, D A / Gard, J D / Imrek, J / Mates, J A B / Pappas, C G / Reintsema, C D / Schmidt, D R / Ullom, J N / Weber, J / Wessels, A / Swetz, D S

    Journal of low temperature physics

    2020  Band 199

    Abstract: Microwave SQUID multiplexing has become a key technology for reading out large arrays of X-ray and gamma-ray microcalorimeters with mux factors of 100 or more. The desire for fast X-ray pulses that accommodate photon counting rates of hundreds or ... ...

    Abstract Microwave SQUID multiplexing has become a key technology for reading out large arrays of X-ray and gamma-ray microcalorimeters with mux factors of 100 or more. The desire for fast X-ray pulses that accommodate photon counting rates of hundreds or thousands of counts per second per sensor drives system design toward high sensor current slew rate. Typically, readout of high current slew rate events is accomplished by increasing the sampling rate, such that rates of order 1MHz may be necessary for some experiments. In our microwave multiplexed readout scheme, the effective sampling rate is set by the frequency of the flux-ramp modulation (
    Sprache Englisch
    Erscheinungsdatum 2020-07-16
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2016984-X
    ISSN 1573-7357 ; 0022-2291
    ISSN (online) 1573-7357
    ISSN 0022-2291
    DOI 10.1007/s10909-019-02250-2
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  2. Artikel: A 300-mK Test Bed for Rapid Characterization of Microwave SQUID Multiplexing Circuits.

    Wessels, A L / Becker, D T / Bennett, D A / Gard, J D / Hubmayr, J / Jarosik, N / Kotsubo, V Y / Mates, J A B / Ullom, J N

    Journal of low temperature physics

    2020  Band 193, Seite(n) 886–892

    Abstract: Microwave SQUID multiplexing is a promising technique for multiplexing large arrays of transition edge sensors. A major bottleneck in the development and distribution of microwave SQUID multiplexer chips occurs in the time-intensive design testing and ... ...

    Abstract Microwave SQUID multiplexing is a promising technique for multiplexing large arrays of transition edge sensors. A major bottleneck in the development and distribution of microwave SQUID multiplexer chips occurs in the time-intensive design testing and quality assurance stages. To obtain useful RF measurements, these devices must be cooled to temperatures below 500 mK. The need for a more efficient system to screen microwave multiplexer chips has grown as the number of chips requested by collaborators per year reaches into the hundreds. We have therefore assembled a test bed for microwave SQUID circuits, which decreases screening time for four 32-channel chips from 24 h in an adiabatic demagnetization refrigerator to approximately 5 h in a helium dip probe containing a closed cycle
    Sprache Englisch
    Erscheinungsdatum 2020-01-10
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2016984-X
    ISSN 1573-7357 ; 0022-2291
    ISSN (online) 1573-7357
    ISSN 0022-2291
    DOI 10.1007/s10909-018-2048-3
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  3. Artikel: Demonstration of 220/280 GHz Multichroic Feedhorn-Coupled TES Polarimeter.

    Walker, S / Sierra, C E / Austermann, J E / Beall, J A / Becker, D T / Dober, B J / Duff, S M / Hilton, G C / Hubmayr, J / Van Lanen, J L / McMahon, J J / Simon, S M / Ullom, J N / Vissers, M R

    Journal of low temperature physics

    2021  Band 199, Heft 3-4

    Abstract: We describe the design and measurement of feedhorn-coupled, transition-edge sensor (TES) polarimeters with two passbands centered at 220 GHz and 280 GHz, intended for observations of the cosmic microwave background. Each pixel couples polarized light in ... ...

    Abstract We describe the design and measurement of feedhorn-coupled, transition-edge sensor (TES) polarimeters with two passbands centered at 220 GHz and 280 GHz, intended for observations of the cosmic microwave background. Each pixel couples polarized light in two linear polarizations by use of a planar orthomode transducer and senses power via four TES bolometers, one for each band in each linear polarization. Previous designs of this detector architecture incorporated passbands from 27 to 220 GHz; we now demonstrate this technology at frequencies up to 315 GHz. Observational passbands are defined with an on-chip diplexer, and Fourier-transform-spectrometer measurements are in excellent agreement with simulations. We find coupling from feedhorn to TES bolometer using a cryogenic, temperature-controlled thermal source. We determine the optical efficiency of our device is
    Sprache Englisch
    Erscheinungsdatum 2021-01-25
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2016984-X
    ISSN 1573-7357 ; 0022-2291
    ISSN (online) 1573-7357
    ISSN 0022-2291
    DOI 10.1007/s10909-019-02316-1
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  4. Artikel: Microwave SQUID Multiplexer Demonstration for Cosmic Microwave Background Imagers.

    Dober, B / Becker, D T / Bennett, D A / Bryan, S A / Duff, S M / Gard, J D / Hays-Wehle, J P / Hilton, G C / Hubmayr, J / Mates, J A B / Reintsema, C D / Vale, L R / Ullom, J N

    Applied physics letters

    2017  Band 111, Heft 24

    Abstract: Key performance characteristics are demonstrated for the microwave SQUID multiplexer (µmux) coupled to transition edge sensor (TES) bolometers that have been optimized for cosmic microwave background (CMB) observations. In a 64-channel demonstration, we ... ...

    Abstract Key performance characteristics are demonstrated for the microwave SQUID multiplexer (µmux) coupled to transition edge sensor (TES) bolometers that have been optimized for cosmic microwave background (CMB) observations. In a 64-channel demonstration, we show that the µmux produces a white, input referred current noise level of [Formula: see text] at -77 dB microwave probe tone power, which is well below expected fundamental detector and photon noise sources for a ground-based CMB-optimized bolometer. Operated with negligible photon loading, we measure [Formula: see text] in the TES-coupled channels biased at 65% of the sensor normal resistance. This noise level is consistent with that predicted from bolometer thermal fluctuation (i.e. phonon) noise. Furthermore, the power spectral density is white over a range of frequencies down to ~ 100 mHz, which enables CMB mapping on large angular scales that constrain the physics of inflation. Additionally, we report cross-talk measurements that indicate a level below 0.3%, which is less than the level of cross-talk from multiplexed readout systems in deployed CMB imagers. These measurements demonstrate the µmux as a viable readout technique for future CMB imaging instruments.
    Sprache Englisch
    Erscheinungsdatum 2017-12-14
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 1469436-0
    ISSN 1077-3118 ; 0003-6951
    ISSN (online) 1077-3118
    ISSN 0003-6951
    DOI 10.1063/1.5008527
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  5. Buch ; Online: Working principle and demonstrator of microwave-multiplexing for the HOLMES experiment microcalorimeters

    Becker, D. T. / Bennett, D. A. / Biasotti, M. / Borghesi, M. / Ceriale, V. / De Gerone, M. / Faverzani, M. / Ferri, E. / Fowler, J. W. / Gallucci, G. / Gard, J. D. / Giachero, A. / Hays-Wehle, J. P. / Hilton, G. C. / Mates, J. A. B / Nucciotti, A. / Orlando, A. / Pessina, G. / Puiu, A. /
    Reintsema, C. D. / Schmidt, D. R. / Swetz, D. S. / Ullom, J. N. / Vale, L. R

    2019  

    Abstract: The determination of the neutrino mass is an open issue in modern particle physics and astrophysics. The direct mass measurement is the only theory-unrelated experimental tool capable to probe such quantity. The HOLMES experiment aims to measure the end- ... ...

    Abstract The determination of the neutrino mass is an open issue in modern particle physics and astrophysics. The direct mass measurement is the only theory-unrelated experimental tool capable to probe such quantity. The HOLMES experiment aims to measure the end-point energy of the electron capture (EC) decay of $^{163}$Ho with a statistical sensitivity on the neutrino mass as low as $\sim 1$ eV/c$^2$. In order to acquire the large needed statistics, by keeping the pile-up contribution as low as possible, 1024 transition edge sensors (TESs) with high energy and time resolutions will be employed. Microcalorimeter and bolometer arrays based on transition edge sensor with thousands of pixels are under development for several space-based and ground-based applications, including astrophysics, nuclear and particle physics, and materials science. The common necessary challenge is to develop pratical multiplexing techniques in order to simplify the cryogenics and readout systems. Despite the various multiplexing variants which are being developed have been successful, new approaches are needed to enable scaling to larger pixel counts and faster sensors, as requested for HOLMES, reducing also the cost and complexity of readout. A very novel technique that meets all of these requirements is based on superconducting microwave resonators coupled to radio-frequency Superconducting Quantum Interference Devices, in which the the changes in the TES input current is tranduced to a change in phase of a microwave signal. In this work we introduce the basics of this technique, the design and development of the first two-channel read out system and its performances with the first TES detectors specifically designed for HOLMES. In the last part we explain how to extend this approach scaling to 1024 pixels.

    Comment: accepted on JINST
    Schlagwörter Physics - Instrumentation and Detectors
    Thema/Rubrik (Code) 621
    Erscheinungsdatum 2019-10-11
    Erscheinungsland us
    Dokumenttyp Buch ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  6. Artikel: Zur Hofeordnung. III

    Becker, D.T

    Agrarrecht. Aug 1978. v. 8 (8)

    1978  

    Titelübersetzung Legal order of succession of farm properties. III.
    Schlagwörter German Federal Republic
    Sprache Deutsch
    Erscheinungsverlauf 1978-08
    Umfang p. 219-221.
    Dokumenttyp Artikel
    ZDB-ID 120048-3
    ISSN 0340-840X
    ISSN 0340-840X
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Bonn

    Z 2691: Hefte anzeigen
    Oi 1402: Hefte anzeigen

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

Zum Seitenanfang