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Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - CRI - Cosmic Ray Indirect
First results from PolarquEEEst
C. Pellegrino, F. Noferini,* M. Abbrescia, C. Avanzini, L. Baldini, R. Baldini Ferroli, L.G. Batignani, M. Battaglieri, S. Boi, E. Bossini, F. Carnesecchi, D. Cavazza, C. Cicalò, L. Cifarelli, F. Coccetti, E. Coccia, A. Corvaglia, D. De Gruttola, S. De Pasquale, L. Fabbri, D. Falchieri, L. Galante, P. Galeotti, M. Garbini, G. Gemme, I. Gnesi, S. Grazzi, D. Hatzifotiadou, P. La Rocca, Z. Liu, G. Mandaglio, G. Maron, M.N. Mazziotta, S. Meneghini, A. Mulliri, R. Nania, F. Nozzoli, F. Palmonari, M. Panareo, M.P. Panetta, R. Paoletti, L. Perasso, O. Pinazza, C. Pinto, G. Piragino, S. Pisano, F. Riggi, G.C. Righini, C. Ripoli, M. Rizzi, G. Sartorelli, E. Scapparone, M. Schioppa, A. Scribano, M. Selvi, G. Serri, S. Squarcia, M. Taiuti, G. Terreni, R. Travaglini, A. Trifirò, M. Trimarchi, M.C. Vistoli, L. Votano, M.C.S. Williams, A. Zichichi, R. Zuyeuski
*corresponding author
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Pre-published on: 2019 July 22
Published on:
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 $66^\circ$\,N to $82^\circ$\,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 $35^\circ$\,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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