SiPM-based azimuthal position sensor in ANITA-IV Hi-Cal Antarctic balloon experiment

• Published in: Journal of Physics: Conference Series
• Main Authors: Novikov, A., Besson, David Zeke, Chernysheva, I., Dmitrenko, V. V., Grachev, V. M., Petrenko, D., Prohira, Steven, Shustov, A., Ulin, S. E., Uteshev, Z. M., Vlasik, K. F.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2018
• Subjects: Antarctic; Antarc*; Antarctica
• Online Access: http://hdl.handle.net/1808/27054; https://doi.org/10.1088/1742-6596/798/1/012217

Hi-Cal (High-Altitude Calibration) is a balloon-borne experiment that will be launched in December, 2016 in Antarctica following ANITA-IV (Antarctic Impulsive Transient Antenna) and will generate a broad-band pulse over the frequency range expected from radiation induced by a cosmic ray shower. Here, we describe a device based on an array of silicon photomultipliers (SiPMs) for determination of the azimuthal position of Hi-Cal. The angular resolution of the device is about 3 degrees. Since at the float altitude of ~38 km the pressure will be ~0.5 mbar and temperature ~ − 20 °C, the equipment has been tested in a chamber over a range of corresponding pressures (0.5 ÷ 1000) mbar and temperatures (−40 ÷ +50) °C.