Showing papers by "Sanshiro Enomoto published in 1998"
TL;DR: The conceptual foundations of the Earth's geophysical structure and dynamics rest on a variety of surface observables (heat flow, electromagnetic currents, Earth and meteorite samples, etc) and of interior probes (volcanic fallout, seismic sounding of gross structure, magnetism etc) as mentioned in this paper.
Abstract: The conceptual foundations of the Earth’s geophysical structure and dynamics rest on a variety of surface observables (heat flow, electromagnetic currents, Earth and meteorite samples, etc), and of interior probes (volcanic fallout, seismic sounding of gross structure, magnetism, etc) [1] A basic factor in the interior dynamics and the evolution of the present Earth is the radiogenic heat, ,90% of which comes from the decay of 238 U and 232 Th With a U abundance and U to Th ratio evaluated for the solar system [2], the present Earth’s radiogenic heat is set at ,16 TW, ,40% of the observed ,40 TW outflow on the Earth’s surface Models of the Earth [3] disperse ,50% of the total U,Th in the mantle (,2900 km thick) and concentrate the other ,50% in a thin, ,35 km crust under the continents The oceanic crust is much thinner s,65 kmd with a much smaller s3 1
102 citations
01 Jul 1998
TL;DR: In this article, the authors present the initial design of a very large liquid scintillator detector to be installed in the underground cavity where Kamiokande used to be, optimized to detect low energy anti neutrinos and perform unique measurements in the fields of neutrino physics geophysics and astrophysics.
Abstract: We present the initial design of a very large kton liquid scintillator detector to be installed in the underground cavity where Kamiokande used to be The ex periment is optimized to detect low energy anti neutrinos and it will perform unique measurements in the elds of neutrino physics geophysics and astrophysics One of the initial goals will be to perform a very long baseline oscillation experiment using a large number of nuclear reactors Such an experiment will be sensitive to neutrino masses as low as m eV attacking for the rst time with a laboratory measurement some of the possible solutions to the solar neutrino anomaly This can be considered the ultimate neutrino mass test using the oscillation technique The observation of neutrinos from the Earth supernovae atmosphere and nucleon decay will also be part of a very rich initial program while in a later stage the ob servation of solar neutrinos and other channels requiring ultra low background will become the main focus KamLAND is conceived as a scalable detector that will be able to start in a very short time to deliver results on a number of essential physics issues that only require present day technology This rst running period will also establish backgrounds and detector requirements for a second ultra low background running phase
33 citations