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The Front-End Electronics and the Data Acquisition System for a Kinetic Inductance Detector

Capasso, L. ; Branchini, P. ; Budano, A. ; Marchetti, D.

IEEE transactions on nuclear science, 2015-06, Vol.62 (3), p.1016-1020 [Periódico revisado por pares]

IEEE

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  • Título:
    The Front-End Electronics and the Data Acquisition System for a Kinetic Inductance Detector
  • Autor: Capasso, L. ; Branchini, P. ; Budano, A. ; Marchetti, D.
  • Assuntos: Arrays ; Data acquisition ; Detector instrumentation ; Detectors ; digital signal processing ; Field programmable gate arrays ; FPGAs ; Inductance ; Kinetic theory ; real time systems ; Resonant frequency ; superconducting radiation detectors
  • É parte de: IEEE transactions on nuclear science, 2015-06, Vol.62 (3), p.1016-1020
  • Descrição: The Data Acquisition System (DAQ) and the Front-End electronics for an array of Kinetic Inductance Detectors (KIDs) are described. KIDs are superconductive detectors, in which electrons are organized in Cooper pairs. Any incident radiation could break a pair generating a couple of quasi-particles that increase the inductance of the detector. The DAQ system we developed is a hardware/software co-design, based on state machines and on a microprocessor embedded into an FPGA. A commercial DAC/ADC board is used to interface the FPGA to the array of KIDs. The DAQ system generates a Stimulus signal suitable for an array of up to 128 KIDs. Such signal is up-mixed with a 3 GHz carrier wave and it then excites the KIDs array. The read-out signal from the detector is down-mixed with respect to the 3 GHz sine wave and recovered Stimulus is read back by the ADC device. The microprocessor stores read out data via a PCI express bus (PCIe) into an external disk. It also computes the Fast Fourier Transform of the acquired read out signal: this allows extrapolating which KID interacted and the energy of the impinging radiation. Simulations and tests have been performed successfully and experimental results are presented.
  • Editor: IEEE
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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