PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Solar & Heliospheric. SH-Transient solar phenomena (SEP, GLE, Forbush decreases)
Observation of the Forbush decrease of 22 June 2015 with the LAGO detector in Brazil
A.C. Fauth*, H. Vieira de Souza  on behalf of the LAGO Collaboration
Full text: pdf
Pre-published on: August 16, 2017
Published on: August 03, 2018
The Latin American Giant Observatory (LAGO) is a widespread cosmic ray observatory which uses water-Cherenkov Detectors (WCD) deployed in nine Latin American countries, being able to detect transient events or long term modulation effects simultaneously at places having different geomagnetic rigidity cut-offs and altitudes. In this work, results of studies on cosmic ray muon flux variations during the Forbush decrease of 22 June 2015 registered by the LAGO detector installed at the University of Campinas, Brazil, ${22^{o}49^{'}03^{"}S, 47^{o}04^{'}11^{"}W}$ at 650 m a.s.l., the TANCA detector, are presented. TANCA is a cylindrical polyethylene tank of 10 $m^2$ containing a sealed liner with a reflective inner surface. The liner contains 11400 liters of ultra-pure water. Cherenkov light produced by the passage of particles through the water is collected by three nine-inch-diameter photomultiplier tubes. The experimental setup and detector performance is also presented. The studies on Forbush decrease contain comparisons with neutron monitors and indices of Earth's magnetic activity.
DOI: https://doi.org/10.22323/1.301.0130
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.