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Optimization of Time- and Code-Division-Multiplexed Readout for Athena X-IFU.
Doriese, W B; Bandler, S R; Chaudhuri, S; Dawson, C S; Denison, E V; Duff, S M; Durkin, M; FitzGerald, C T; Fowler, J W; Gard, J D; Hilton, G C; Irwin, K D; Joe, Y I; Morgan, K M; O'Neil, G C; Pappas, C G; Reintsema, C D; Rudman, D A; Smith, S J; Stevens, R W; Swetz, D S; Szypryt, P; Ullom, J N; Vale, L R; Weber, J C; Young, B A.
Afiliação
  • Doriese WB; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Bandler SR; National Aeronautics and Space Administration, Greenbelt, MD 20771 USA.
  • Chaudhuri S; Stanford University Dept. of Physics, Stanford, CA 94305 USA.
  • Dawson CS; Stanford University Dept. of Physics, Stanford, CA 94305 USA.
  • Denison EV; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Duff SM; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Durkin M; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • FitzGerald CT; Santa Clara University Dept. of Physics, Santa Clara, CA 95053 USA.
  • Fowler JW; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Gard JD; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Hilton GC; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Irwin KD; Stanford University Dept. of Physics, Stanford, CA 94305 USA.
  • Joe YI; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Morgan KM; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • O'Neil GC; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Pappas CG; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Reintsema CD; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Rudman DA; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Smith SJ; National Aeronautics and Space Administration, Greenbelt, MD 20771 USA.
  • Stevens RW; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Swetz DS; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Szypryt P; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Ullom JN; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Vale LR; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Weber JC; National Institute of Standards and Technology, Boulder, CO 80305, USA.
  • Young BA; Stanford University Dept. of Physics, Stanford, CA 94305 USA.
IEEE Trans Appl Supercond ; 29(5)2019 Mar 18.
Article em En | MEDLINE | ID: mdl-31360051
Readout of a large, spacecraft-based array of superconducting transition-edge sensors (TESs) requires careful management of the layout area and power dissipation of the cryogenic-circuit components. We present three optimizations of our time- (TDM) and code-division-multiplexing (CDM) systems for the X-ray Integral Field Unit (X-IFU), a several-thousand-pixel-TES array for the planned Athena-satellite mission. The first optimization is a new readout scheme that is a hybrid of CDM and TDM. This C/TDM architecture balances CDM's noise advantage with TDM's layout compactness. The second is a redesign of a component: the shunt resistor that provides a dc-voltage bias to the TESs. A new layout and a thicker Pd-Au resistive layer combine to reduce this resistor's area by more than a factor of 5. Third, we have studied the power dissipated by the first-stage SQUIDs (superconducting quantum-interference devices) and the readout noise versus the critical current of the first-stage SqUIDs. As a result, the X-IFU TDM and C/TDM SQUIDs will have a specified junction critical current of 5 µA. Based on these design optimizations and TDM experiments described by Durkin, et al. (these proceedings), TDM meets all requirements to be X-IFU's backup-readout option. Hybrid C/TDM is another viable option that could save spacecraft resources.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: IEEE Trans Appl Supercond Ano de publicação: 2019 Tipo de documento: Article
Texto completo
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XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: IEEE Trans Appl Supercond Ano de publicação: 2019 Tipo de documento: Article