Neutron sensitivity by increasing boron surface area
View Patent ↗A neutron detector including an anode and a cathode. The cathode extends proximate the anode and has a face including boron. The face has varied topography. The varied provides increased surface density.
1. A neutron detector including:
an anode; and
a cathode extending proximate the anode and having a face including boron, the face having varied topography, the anode being separated from the cathode by a gas-filled volume.
2. A detector as set forth in claim 1 , wherein the boron includes at least 90% B-10.
3. A detector as set forth in claim 1 , wherein the cathode extends about the anode and the face is an interior face that faces the anode.
4. A detector as set forth in claim 1 , wherein the varied topography includes grooves.
5. A detector as set forth in claim 4 , wherein the grooves are V-shaped.
6. A detector as set forth in claim 5 , wherein the grooves are approximately 0.0254 mm (0.001 inch) wide and within the range of 0.0762-0.2032 mm (0.003-0.008 inch) deep.
7. A detector as set forth in claim 4 , wherein the grooves are sinusoidal.
8. A detector as set forth in claim 1 , wherein the varied topography includes depressions.
9. A detector as set forth in claim 8 , wherein the depressions are pits in the face.
10. A detector as set forth in claim 1 , wherein the boron is provided as a layer on the cathode with an average thickness of less than 0.0254 mm (0.001 inch).
11. A neutron detector including:
an anode; and
a cathode extending proximate the anode and having a face including boron, the face having means for providing increased surface density, the anode being separated from the cathode by a gas-filled volume.
12. A detector as set forth in claim 11 , wherein the boron includes at least 90% B-10.
13. A detector as set forth in claim 11 , wherein the cathode extends about the anode and the face is an interior face that faces the anode.
14. A detector as set forth in claim 11 , wherein the means for providing increased surface density includes a varied topography on the face of the anode.
15. A detector as set forth in claim 14 , wherein the varied topography includes grooves.
16. A detector as set forth in claim 15 , wherein the grooves are V-shaped.
17. A detector as set forth in claim 15 , wherein the grooves are sinusoidal.
18. A detector as set forth in claim 14 , wherein the varied topography includes depressions.
19. A detector as set forth in claim 18 , wherein the depressions are pits in the face.
20. A detector as set forth in claim 11 , wherein the boron is provided as a layer on the cathode with an average thickness of less than 0.0254 mm (0.001 inch).