During the summer of 2018 the PolarQuest 2018 ship expedition cruised to the North Pole region. One of the four experiments installed on the boat was PolarquEEEst, a cosmic ray detector developed within the Extreme Energy Events project. The PolarquEEEst purpose is to measure the cosmic ray flux at sea level and at extreme latitudes in a very poorly explored region. The POLA-01 detector, designed to fit the strong requirements for an on-board installation, is composed of two planes (four tiles each) of scintillators. Two similar detectors POLA-02 and POLA-03 were also installed in fixed locations, in Norway and Italy respectively, to be used as a reference. The high stability of the POLA-01 detector in the whole period allowed to collect data from 66◦ N to 82◦ N latitudes and to look for variations on the cosmic ray flux when moving towards the North Pole, using POLA-02 and POLA-03 measurements to remove time-fluctuations affecting the flux. The first results collected during the expedition will be reported. The PolarquEEEst mission continued its trip in Italy to perform measurement down to 35◦ N with POLA-01, which has been recently installed with POLA-03 and the newely built POLA-04 in the Svalbard islands to collect data for a long period.
First results from PolarquEEEst
Battaglieri M.;Squarcia S.;Taiuti M.;
2021-01-01
Abstract
During the summer of 2018 the PolarQuest 2018 ship expedition cruised to the North Pole region. One of the four experiments installed on the boat was PolarquEEEst, a cosmic ray detector developed within the Extreme Energy Events project. The PolarquEEEst purpose is to measure the cosmic ray flux at sea level and at extreme latitudes in a very poorly explored region. The POLA-01 detector, designed to fit the strong requirements for an on-board installation, is composed of two planes (four tiles each) of scintillators. Two similar detectors POLA-02 and POLA-03 were also installed in fixed locations, in Norway and Italy respectively, to be used as a reference. The high stability of the POLA-01 detector in the whole period allowed to collect data from 66◦ N to 82◦ N latitudes and to look for variations on the cosmic ray flux when moving towards the North Pole, using POLA-02 and POLA-03 measurements to remove time-fluctuations affecting the flux. The first results collected during the expedition will be reported. The PolarquEEEst mission continued its trip in Italy to perform measurement down to 35◦ N with POLA-01, which has been recently installed with POLA-03 and the newely built POLA-04 in the Svalbard islands to collect data for a long period.
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