Posted on Feb 4, 2014

I`ve now come to see cosmic ray detection as the poor man`s version of particle physics experiments. As the journey of construction, experimentation and interpretation of results, has meant learning a little bit more about the fascinating particles and forces that make up our universe. I haven`t had time to document all my projects, but below are a list of

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some projects please feel free to write to me and ask question if information is not clear enough. Cosmic rays are energetic particles originating from deep space that hit our atmosphere 30km above the Earth`s surface. They come from a variety of sources including our own Sun, other stars and distant interstellar objects such as black wholes, but most are the accelerated remnants of supernova explosions. Although commonly called cosmic rays the term "ray" is a misnomer, as cosmic particles arrive individually as a primary particle, not as a ray or beams of particles. 90% are Protons, 9% helium nuclei, and the remainder electrons or other particels. When these primary particles hit, they do so with such tremendous energy they rip their way into our atmosphere with atom smashing power. Cosmic rays are commonly known to have energies well over 1020 eV ( electron volts ), far more than any particle accelerator built here on earth, like the Large Hadron Collider (LHC). These interactions produce an exotic zoo of high energy particles and anti-particles high in the earth`s atmosphere such as positive and negative pions and kaons that subsequently decay into muons and muon neutrinos (including cascades of protons and neutrons as a result of nucleonic decay). Where uncharged pions decay into pairs of high energy photons they become the starting points of large cascades of electrons, positrons and gamma rays. The resulting flux of...

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