Development toward a ground-based interferometric phased array for radio detection of high energy neutrinos

作者：Avva J; Bechtol K; Chesebro T; Cremonesi L; Deaconu C; Gupta A; Ludwig A; Messino W; Miki C; Nichol R; Oberla E; Ransom M; Romero Wolf A; Saltzberg D; Schlupf C; Shipp N; Varner G; Vieregg A G^*; Wissel S A^*

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2017, 869: 46-55.

DOI：10.1016/j.nima.2017.07.009

• Ultra-high energy neutrinos
• Radio detection
• Phased array

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.

• 出版日期2017-10-11