Thursday, July 01, 2010
Antimatter holds pretty much the opposite properties of regular matter. For example, If just an ordinary particle, say an electron, collides with an antimatter particle--They will explode. Antimatter is sometimes referenced to as the "god particle" and for good reason. With just around 1 kg of antimatter, you could create an explosion big enough to match that of the Tsar bomb, which is the world's most powerful nuclear weapon. Although, the discover of these so called "antimatter particles" are not actually antimatter. They kinda are similar in the sense that geoneutrinos are the opposites of neutrinos, like how antimatter is the opposite of matter.
Deposits of these antimatter particles is caused by radioactive decay of thorium, uranium, and potassium from the Earth's crust and mantle.
The discovery originated at the Gran Sasso National Laboratory of the Italian Institute of Nuclear Physics. They used a giant steel sphere that is buried about a mile under Gran Sasso moutain in Italy. The sphere has a inner nylon sphere detector that holds 1,000 tons of hydrocarbon liquid. It then has an outer steel sphere which contains ultra-sensitive photodetectors and then the whole thing is encased in another steel sphere (45 ft diameter) that holds about 2,400 tons of purified water. The thing is designed to only detect solar neutrinos, geoneutrinos and neutrinos. After an entire year of searching for the geoneutrinos particles, only a few were found. However, solar neutrinos are relatively common as the sphere can detect them more easily. Geoneutrinos, on the other hand, are very difficult to find as they can pass through everything without any kind of interaction whatsoever. The research is still ongoing.
Studying geoneutrinos could help researchers better understand the way heat develops and flows under our planet and how it can affect events like volcanic eruptions and earthquakes.
Photo credit: Paolo Lombardi INFN-MI
Story Adapted from: Livescience
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