DUAL-USE OR POSITION-SENSITIVE HELIUM-3 NEUTRON DETECTOR BY GAS GAIN MANIPULATION

摘要

A detector that detects properties of geological formation includes a first volume and a second volume each comprising Helium-3 gas. The detector includes a gas electron multiplier having a mesh plate disposed between the first volume and the second volume. The mesh plate creates an electric field that multiplies electrons of the second volume based on epithermal neutrons in the second volume. The detector includes at least one anode configured to receive electrons based on thermal neutrons in the first volume and epithermal neutrons in the second volume.