CaLMa Neutron Monitor: current status, first observations and future improvements

24th European Cosmic Ray Symposium

Blanco, J.J.^1,2 ; Medina, J.^1,2 ; García-Población, O.^1,2 ; Gómez-Herrero, R.^1,2 ; García-Tejedor, I.^1,2 ; Ayuso, S.^1,2 ; Catalán, E.J.^1,2

Space Research Group, University of Alcalá, Spain^1

Castilla-La Mancha Neutron Monitor, Parque Científico y Tecnológico de Castilla-La Mancha, Spain^2

关键词: Boron trifluoride;    Count rates;    Current status;    Forbush decrease;    Future improvements;    La Mancha;    Neutron monitors;    Solar activity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/632/1/012052/pdf
DOI  :  10.1088/1742-6596/632/1/012052

来源: IOP

【 摘 要 】

Castilla-La Mancha Neutron Monitor (CaLMa) is a 15 boron trifluoride counter neutron monitor located in Guadalajara, Spain (40°38'N, 3°9'W) at 708 m above sea level (asl) and a vertical rigidity cut-off of 6.95 GV. CaLMa is able to measure neutrons produced by primary cosmic rays with energies above 6 GeV if protons are these primary cosmic rays. CaLMa has been continuously monitoring solar activity since October 2011, having reported more than 25 Forbush decreases. This work presents the preliminary results inferred from CaLMa's count rate variations, shows the latest improvements carried out in CaLMa and outlines our future plans to improve the station