Patent ID: 7745800

Claim:
A directional neutron detecting apparatus comprising: a first neutron detector, said first neutron detector including a planar sheet of neutron-reactive material; a first ohmic electrode operably coupled directly to one side of said planar sheet of neutron-reactive material; a second ohmic electrode operably coupled directly to a second side of said planar sheet of neutron-reactive material; a voltage source operably coupled to said first and second ohmic electrodes; and an electrical current detector operably coupled in series between said first ohmic electrode and said voltage source, and a second neutron detector, said second neutron detector including a planar sheet of neutron-reactive material; a first ohmic electrode operably coupled directly to one side of said planar sheet of neutron-reactive material; a second ohmic electrode operably coupled directly to a second side of said planar sheet of neutron-reactive material; a voltage source operably coupled to said first and second ohmic electrodes; and an electrical current detector operably coupled in series between said first ohmic electrode and said voltage source, wherein said first and second neutron detectors are arranged so that their planar sheets of neutron-reactive material are substantially parallel, opposing and are spaced from each other and wherein said planar sheets of neutron-reactive material each have a thickness and a planar face, said planar face having a linear dimension wherein said planar sheet is categorized by an aspect ratio, said aspect ratio being a ratio of said linear dimension to said thickness of said neutron-reactive material sheet, and further wherein said aspect ratio is at least 10.