Cosmic ray observations from Livingston Island

• DOI: 10.1016/j.asr.2022.02.046
• Publication Date: 2022-03-04T10:25:11Z
• Authors: Juan José Blanco; Juan Ignacio Garc...; Óscar García-Pobl...; Sindulfo Ayuso; Alejandro López-C...; Iván Vrublevskyy; Manuel Prieto; Anna Morozova
• Keywords: Neutron monitor

ORCA, from the Spanish name Observatorio de Rayos Cósmicos Antártico, is a cosmic ray detector devoted to observation of secondary rays at Juan Carlos I Antarctic Base (62° 39′ 46″S,60° 23′ 20″W, 12 m above sea level). ORCA was installed beginning January 2019 after performing latitudinal survey Vigo (Spain) Livingston Island aboard Sarmiento Gamboa Research Vessel. in commissioning phase March 2020, being normal operation mode 2020. A vertical cutoff rigidity 2.37GV has been computed location and during first year operation, i. e. 2020 2021. consists three detectors stacked shared structure that maintains relative distances between detectors. muon telescope (ORCM), neutron monitor without any shielding around (ORCB) 3NM64 (ORCA). This configuration allows measurement count rates two different energy thresholds, rate incident directions. Measurements recorded potential capabilities are shown this work.