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SKALTA experiment

SKALTA experiment. SlovaKiAn Large-area Time coincidence Array. Where? When?. The roof of P. J. Šafárik University in Košice The experiment is active since June 2010. Purpose. Detection of secondary cosmic rays from a primary particle of energy at least 10 14 eV

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SKALTA experiment

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  1. SKALTA experiment SlovaKiAn Large-area Time coincidence Array

  2. Where? When? • The roof of P. J. Šafárik University in Košice • The experiment is active since June 2010

  3. Purpose • Detection of secondary cosmic rays from a primary particle of energy at least 1014 eV • Education and motivation for elementary particle physics students • ...also, barometric station in the area.

  4. Cosmic rays • High energy particles from outside of the Solar system (or possibly even from outside of the galaxy) • Interaction of primary cosmic rays with Earth’s atmosphere => secondary cosmic rays • Typical particles: • Primary c.r. - protons and α-particles • Secondary c.r. - neutrons, pions, positrons, muons

  5. Contribution of the cosmic rays • Chemical reactions in the atmosphere: • Depletion of ozone • Maintaining the amount of carbon-14 (as well as few other different isotopes) • They are part of the ambient radiation • Considerable effect on electronics (mainly in higher altitude)

  6. The array • Three detectors • A triangle with side length of 10 m • GPS • Computing station

  7. Legacy of ALTA • It began with ALTA (Alberta Large-area Time-coincidence Array) located in Alberta, Canada • SKALTA is part of huge detector network • Partners: • CZELTA – located in several places throughout the Czech Republic • NALTA – located in Canada, mostly in Edmonton • RoLTA – located in Romania • All the data is now stored at Czech Technical University, Prague, Czech Republic

  8. ROOT Framework • Used for education • Is a preparation for the real analysis framework AliRoot • All the data is available online on the site of the project

  9. Future goals • To install more detectors on the roofs of other university buildings as well as the roofs of several grammar schools • To make possible even for younger students to try such measurements on their own

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