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Münster 2017 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 15: Instrumentation III

HK 15.2: Talk

Tuesday, March 28, 2017, 11:30–11:45, F 3

Readout and stimulus of a microwave multiplexed thermal sensor — •Panos Neroutsos and Udo Kebschull — Goethe University, Frankfurt am Main, Germany

This PhD research topic expands our knowledge regarding technology for broadband high energy resolution particle spectroscopy. This experiment comprises of a multiplexed readout system of large metallic magnetic calorimeter (MMC) detector arrays. This is an energy dispersive particle detector, which operates at temperatures below 100mK. The proposed readout system aims to a simultaneous readout of thousands of detectors by using a single pair two coaxial cables that are routed from the room-temperature electronics to the detector array. Therefore, in order to readout such an array, a frequency comb having all its tones adjusted to the different resonator frequencies must be injected to in the detector. The resultant signal must be acquired, analyzed and post-processed in order to determine the time dependent phase and amplitude variation, among others, of each sinusoids. A chain of FPGA is the core of this readout system along with the ADC/DAC boards and it is responsible for the manipulation of the ADC/DAC boards, the comb generation, the channelizing process and the digitization respectively. We are using the approach of High Level Synthesis (HLS) Tools, optimized for streaming data applications for the implementation of the post-processing algorithms and Hardware Description Languages (HDL) for the readout of the ADC/DAC boards and the data propagation to our target FPGA(s).

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