| Patent application number | Description | Published |
|---|
| 20090212680 | Microchannel Plate Devices With Multiple Emissive Layers - A microchannel plate includes a substrate defining a plurality of pores extending from a top surface of the substrate to a bottom surface of the substrate. The plurality of pores includes a resistive material on an outer surface that forms a first emissive layer. A second emissive layer is formed over the first emissive layer. The second emissive layer is chosen to achieve at least one of an increase in secondary electron emission efficiency and a decrease in gain degradation as a function of time. A top electrode is positioned on the top surface of the substrate and a bottom electrode is positioned on the bottom surface of the substrate. | 08-27-2009 |
| 20090215211 | Method Of Fabricating Microchannel Plate Devices With Multiple Emissive Layers - A method of fabricating a microchannel plate includes defining a plurality of pores extending from a top surface of a substrate to a bottom surface of the substrate where the plurality of pores has a resistive material on an outer surface that forms a first emissive layer. A second emissive layer is formed over the first emissive layer. The second emissive layer is chosen to achieve at least one of an increase in secondary electron emission efficiency and a decrease in gain degradation as a function of time. A top electrode is formed on the top surface of the substrate and a bottom electrode is formed on the bottom surface of the substrate. | 08-27-2009 |
| 20090315443 | MICROCHANNEL PLATE DEVICES WITH TUNABLE RESISTIVE FILMS - A microchannel plate includes a substrate defining a plurality of channels extending from a top surface of the substrate to a bottom surface of the substrate. A resistive layer is formed over an outer surface of the plurality of channels that provides ohmic conduction with a predetermined resistivity that is substantially constant. An emissive layer is formed over the resistive layer. A top electrode is positioned on the top surface of the substrate. A bottom electrode positioned on the bottom surface of the substrate. | 12-24-2009 |
| 20100044577 | MICROCHANNEL PLATE DEVICES WITH TUNABLE RESISTIVE FILMS - A microchannel plate for detecting neutrons includes a hydrogen-rich polymer substrate that defines a plurality of channels extending from a top surface of the substrate to a bottom surface of the substrate, where neutrons interact with the plurality of channels to generate at least one secondary electron. A top electrode is positioned on the top surface of the substrate and a bottom electrode is positioned on the bottom surface of the substrate. A resistive layer is formed over an outer surface of the plurality of channels that provides ohmic conduction with a resistivity that is substantially constant. An emissive layer is formed over the resistive layer. Neutron interaction products interact with the plurality of channels defined by the substrate and the emissive films to generate secondary electrons that cascade within the plurality of channels to provide an amplified signal related to the detection of neutrons. | 02-25-2010 |
| 20100075445 | Silicon Microchannel Plate Devices With Smooth Pores And Precise Dimensions - A method of fabricating a microchannel plate includes forming a plurality of pores in a silicon substrate. The plurality of pores is oxidized, thereby consuming silicon at surfaces of the plurality of pores and forming a silicon dioxide layer over the plurality of pores. At least a portion of the silicon dioxide layer is stripped, which reduces a surface roughness of the plurality of pores. A semiconducting layer can be deposited onto the surface of the silicon dioxide layer. The semiconducting layer is then oxidized, thereby consuming at least some of the polysilicon or amorphous silicon layer and forming an insulating layer. Resistive and secondary electron emissive layers are then deposited on the insulating layer by atomic layer deposition. | 03-25-2010 |
