Measurement of projected mass density  A basic problem of neutrino geophysics
Abstract
The measurement and calculation of the projected mass density of the earth (I) in neutrino experiments is examined analytically. The formula used in calculating I is explained, and the measurement arrays, comprising a neutrinobeamgeneration system based on a monochromatic beam of pimesons of energy E(pi) and a detection system with one or two (onbeam and offbeam) detectors, are classified according to the accuracy of both major components. Modifications to the basic formula to allow for measurement of neutrino fluxes, for determination of I from the means of knowndistribution moments, or for measurements of neutrino beams with different values of E(pi) are proposed. The importance of these measurements for determining the density and chemical composition of the earth's interior is stressed, and their potential applicability to oil and heavyelement prospecting is indicated.
 Publication:

Bolgarska Akademiia Nauk Doklady
 Pub Date:
 1983
 Bibcode:
 1983BlDok..36.1515N
 Keywords:

 Density Measurement;
 Earth Planetary Structure;
 Neutrino Beams;
 Planetary Mass;
 Density (Mass/Volume);
 Earth Core;
 Radiation Counters;
 Geophysics