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Front–End Electronics for the Array Readout of a Microwave Kinetic Inductance Detector Towards Observation of Cosmic Microwave Background Polarization

Precise measurements of polarization patterns in cosmic microwave background (CMB) provide deep knowledge about the begin of the Universe. The GroundBIRD experiment aims to measure the CMB polarization by using microwave kinetic inductance detector (MKID) arrays. The MKID is suited to multiplexing.... Full description

Contributors: Ishitsuka, H
Ikeno, M
Oguri, S
Tajima, O
Tomita, N
Uchida, T
Contained in: Journal of low temperature physics Dordrecht [u.a.] : Springer Vol. 184, No. 1 (2016), p. 424-430
Journal Title: Journal of low temperature physics
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Links: Volltext (dx.doi.org)
ISSN: 0022-2291
DOI: 10.1007/s10909-015-1467-7
Regional Holdings: TIB – German National Library of Science and Technology
Physikalisch-Technische Bundesanstalt
Language: English
Notes: Copyright: © Springer Science+Business Media New York 2016
ID (e.g. DOI, URN): 10.1007/s10909-015-1467-7
PPN (Catalogue-ID): OLC1978821026
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520 |a Precise measurements of polarization patterns in cosmic microwave background (CMB) provide deep knowledge about the begin of the Universe. The GroundBIRD experiment aims to measure the CMB polarization by using microwave kinetic inductance detector (MKID) arrays. The MKID is suited to multiplexing. One of our requirements is a MUX factor (the number of readout channels for a single wire pair) of at least 100. If we make frequency combs of the MKIDs with 2-MHz spacing, a bandwidth of 200 MHz satisfies 100 MUX. The analog electronics must consist of an analog-to-digital converter (ADC), digital-to-analog converter (DAC), and local oscillator. We developed our own analog electronics board “RHEA.” Two outputs/inputs of DAC/ADC with a 200-MHz clock provide an effective bandwidth of 200 MHz. The RHEA allows us to measure both the amplitude and phase responses of each MKID simultaneously. These data are continuously sampled at a high rate (e.g., 1 kSPS) and with no dead time. We achieved 12 and 14 bits resolution for ADC and DAC, respectively. This corresponds to achieve that our electronics achieved low noise: 1/1000 compared with the detector noise. We also achieved low power consumption compared with that of other electronics development for other experiments. Another important feature is that the board is completely separated from the digital part. Each user can choose their preferred field-programmable array. With the combination of the Kintex-7 evaluation kit from Xilinx, we demonstrated readout of MKID response. 
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700 1 |a Uchida, T 
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950 |a Physics  |a Kinetic inductance detector  |a Magnetism, Magnetic Materials  |a Cosmic microwave background  |a Condensed Matter Physics  |a Readout electronics  |a Characterization and Evaluation of Materials  |2 DE-601 
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952 |d 184  |j 2016  |e 1  |h 424-430