Patent ID: 6614867
Filing Date: 2003-09-02
Classification: G01T

Abstract:
A dodecahedron neutron spectrometer monitor, comprising:a plurality of neutron detectors; said monitor is placed in proximity to a suspected concentration of neutron radiation; each of said plurality of neutron detectors further comprising a detector means stacked on an absorbing layer, said absorbing layer, being composed of a first material that absorbs protons, and each of said absorbing layers is stacked on a separate hydrogenous surface facet of a dodecahedron assembly; said hydrogenous surface facet being composed of a second material having hydrogen atoms, said hydrogen atoms interacting with said suspected concentration of neutron radiation, converting said neutrons to recoil protons, each of said detector means detecting recoil protons passing through said absorbing layer; each of said absorbing layers having a different thickness to absorb neutron energies from 1 to 250 MeV; said dodecahedron assembly being housed concentrically in a spherical chamber; each of said detector means being coupled to a means for data processing; said data processing means providing a count of recoil protons to a means for proton distribution; and said means for proton distribution determines a proton distribution pattern to construct a neutron pattern indicating the spectrum of neutrons from said suspected concentration of neutron radiation.