期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2017.07.009
关键词
Ultra-high energy neutrinos; Radio detection; Phased array
类别
资金
- Kavli Institute for Cosmological Physics at the University of Chicago, Department of Energy [DE-SC0009937]
- Leverhulme Trust
- Direct For Mathematical & Physical Scien
- Division Of Physics [1607555] Funding Source: National Science Foundation
- STFC [ST/N000285/1] Funding Source: UKRI
The in-ice radio interferometric phased array technique for detection of high energy neutrinos looks for Askaryan emission from neutrinos interacting in large volumes of glacial ice, and is being developed as a way to achieve a low energy threshold and a large effective volume at high energies. The technique is based on coherently summing the impulsive Askaryan signal from multiple antennas, which increases the signal-to-noise ratio for weak signals. We report here on measurements and a simulation of thermal noise correlations between nearby antennas, beamforming of impulsive signals, and a measurement of the expected improvement in trigger efficiency through the phased array technique. We also discuss the noise environment observed with an analog phased array at Summit Station, Greenland, a possible site for an interferometric phased array for radio detection of high energy neutrinos. (C) 2017 Elsevier B.V. All rights reserved.
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