Geoneutrinos, anti-electron neutrinos emanating from the earth, are expected to serve as a unique window into the interior of our planet, revealing information that is hidden from other probes. The left half of this image shows the production distribution for the geoneutrinos detected at KamLAND, and the right half shows the geologic structure.
KamLAND is the first neutrino detector used to identify and measure geoneutrinos. Consisting of a weather balloon filled with a liquid scintillator, KamLAND is the largest low-energy anti-neutrino detector ever built.
Results from KamLAND, an underground neutrino detector in central Japan, show that anti-electron neutrinos emanating from the earth, so-called geoneutrinos, can be used as a unique window into the interior of our planet, revealing information that is hidden from other probes.
“This is a significant scientific result,” said Stuart Freedman, a nuclear physicist with a joint appointment at the Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California at Berkeley, who is a co-spokesperson for the U.S. team at KamLAND, along with Giorgio Gratta, a physics professor at Stanford University.
“We have established that KamLAND can serve as a unique and valuable tool for the study of geoneutrinos with wide-ranging implications for physical and geochemical models of the earth,” Freedman added.
Lynn Yarris | EurekAlert!
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