Patent ID: 8912502

Claim:
A system, comprising: a thermal neutron detector; a high pressure ion chamber formed in a dielectric material, the high pressure ion chamber having a substantially planar first surface and a substantially planar second surface parallel to the first surface; a first electrode formed on the first surface of the high pressure ion chamber; a second electrode formed on the second surface of the high pressure ion chamber, wherein electronics are embedded within a device layer of a wafer; a neutron absorbing material filling the high pressure ion chamber, a chamber pressure of the neutron absorbing material being equal to or greater than 100 atm, wherein the high pressure ion chamber increases utilization of the neutron absorbing material due to reduced self-absorption and uniform distribution of absorbing material as enabled by the substantially planar first surface and the substantially planar second surface parallel to the first surface; and a neutron moderating material encompassed by the thermal neutron detector.