Présidents de session
Mantle-crust connection, geoneutrinos and Earth's heat budget
- Nobuaki Fuji (Université Paris Cité, Institut de physique du globe de Paris)
K, Th, and U, with their relative high abundances and half-lives comparable to or greater than the age of the Earth, contribute to approximately the 99% of the radiogenic heat production of our planet. During a beta minus decay, geoneutrinos and radiogenic heat are released in a well-established proportion: measuring the detectable U and Th geoneutrino flux at surface hence translates in...
Thanks to the progress in neutrino-detection techniques, geoneutrinos, antineutrinos from the decays of long-lived radioactive elements inside the Earth, can be detected and exploited as a unique tool to study our planet. Geoneutrinos from the 238U and 232Th radioactive chains with energies above 1.8 MeV were measured by the KamLAND experiment in Japan and the Borexino experiment in Italy,...
In the coming years, the geoneutrino experimental dataset will be enriched beyond the existing Borexino and KamLAND experiments. Data from the Canadian SNO+ experiment are expected very soon, and the construction of the Jiangmen Underground Neutrino Observatory (JUNO) is nearing completion. We are entering an era of multi-site geoneutrino detection.
The road ahead for geoneutrino science is...
Jiangmen Underground Neutrino Observatory (JUNO) is a neutrino experiment being built in Southern China to measure neutrinos produced in nuclear power plants at a distance of 52.5 km. Having the main goal to improve the knowledge about neutrino oscillations, fundamental properties of these particles, JUNO will also be able to observe neutrinos of natural origin such as from the Sun,...
