An observatory of cosmic rays in Antarctica to measure neutron and muon radiation

An observatory of cosmic rays in Antarctica to measure neutron and muon radiation https://i0.wp.com/www.eresviral.com/wp-content/uploads/2018/11/Un-observatorio-de-rayos-cósmicos-en-la-Antártida-para-medir-la-radiación-de-neutrones-y-muones.jpg?fit=260%2C146&ssl=1

An observatory of cosmic rays in Antarctica to measure neutron and muon radiation





An observatory of cosmic rays in Antarctica to measure neutron and muon radiation


The vessel Sarmiento de Gamboa departs at the end of this week from the port of Vigo. In his luggage he carries a very special 8-ton container, in which the research team of the UAH (Spain) has been working for the last year and a half: a Cosmic Ray Observatory that will be used to record the amount of cosmic rays that they reach the planet Earth in the form of neutrons and muons.



Expectations are very broad, since this is the first time a project of this nature has been carried out on a trip to Antarctica and the frozen continent, where measurements will be recorded for at least 2 years.



Among the objectives proposed by the ORCA project are studying the effect of the Earth's magnetic field on the propagation of cosmic rays and analyzing solar activity. 'Neutron monitors, and part of our detector is a neutron monitor, are used to give high-dose radiation warnings due to solar activity', explains the researcher.



Also, thanks to the analysis of the cosmic ray flux, studies of the terrestrial atmosphere and variations of the earth's magnetic field can be carried out. 'Cosmic rays, in this case, are directly related to the thickness of the ionosphere, and that has to do with communications via radio; there are also several studies that relate cosmic rays to climate, especially in the production of clouds ... therefore, the analysis will be very useful. '







Interior of the observatory. (Photo: UAH)



In addition, during the trip the expedition will cross the anomaly of the South Atlantic (an anomaly of the Earth's magnetic field, unique in the Earth) and that will allow to have information about the effect of it in the cosmic ray flows.



The transmission of the measurements will be carried out through an Iridium satellite telephone system, which will allow data to be continuously available to control the state of the detector.



The ORCA project (Antarctic Cosmic Ray Observatory) also collaborates with the University of Santiago de Compostela, researchers from the National Geographic Institute and the University of Kiel (Germany). The UAH team is also composed of professors Óscar García Population, Ignacio García Tejedor, Manuel Prieto Mateo and PhD students Sindulfo Ayuso de Gregorio and Alejandro López Comazzi. They are all members of Grupo SRG.



Ignacio García Tejedor and Juan José Blanco will travel tomorrow, Tuesday, the 13th, to Vigo, to install the container with the ORCA on the ship Sarmiento de Gamboa. In the month of December, they will also travel to Antarctica to disassemble the detector piece by piece and reinstall it, already permanently, in the scientific base Juan Carlos I.



This project has been possible, in part, thanks to the long experience that has the UAH and, in particular, the research group Space Research Group, in the monitoring of cosmic rays, as they have developed and manage the neutron monitor CaLMA, installed in the Science and Technology Park of Castilla-La Mancha (Guadalajara).



The Neutron Monitor of Castilla-La Mancha (CaLMa) is the first to be installed in Spain and its mission is to permanently measure the extraterrestrial radiation reaching the ground. It is integrated into the NMDB neutron monitor network (Neutron Monitor Database). (Source: UAH / DICYT)

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