3D printed micro channel plate, method of making and using 3D printed micro channel plate

Patent metadata

Field	Value
Publication number	US-10796874-B2
Application number	US-201916448313-A
Country	US
Kind code	B2
Filing date	Jun 21, 2019
Priority date	Sep 28, 2017
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

The invention provides a gain device having a plurality of channels having a polygonal shape with four or more sides. The invention also provides a method for producing microchannel plates (MCPs) having the steps of providing a pre-polymer; and directing a laser over the pre-polymer into a pre-determined pattern. Also provided is method for efficiently 3D printing an object.

First claim

The invention claimed is:

1. A gain device comprising a plurality of channels having a polygonal shape with four or more sides, wherein the device has an open area ratio of at least 80 percent.

2. The gain device of claim 1 wherein the channels having a polygonal shape are hexagonal channels.

3. The gain device of claim 1 wherein the channels having a polygonal shape extend transversely through the device so as to define a first channel end and a second channel end.

4. The gain device of claim 1 wherein the device is at least 1.2 mm thick, and wherein the device has a diameter that is at least one cm.

5. The gain device of claim 3 wherein the first and second channel ends are coated with a conductive layer.

6. The gain device of claim 5 wherein the conductive layer is a conductive material selected from the group consisting of gold, platinum, palladium, nichrome, copper, and combinations thereof.

7. The gain device of claim 5 wherein the channels having a polygonal shape have interior surfaces, and wherein the interior surfaces are coated with a first resistive coating and a secondary electron emissive coating.

8. The gain device of claim 7 wherein the resistive coating comprises a combination of Al 2 O 3 and tungsten, and wherein the secondary electron emissive coating is made from a material selected from the group consisting of Al 2 O 3 , MgO, and combinations thereof.

9. The gain device of claim 7 wherein the first coating is between 10 and 1000 nm thick and the second coating is between 1-100 nm thick.

10. The gain device of claim 4 wherein the device provides 10 4 gain.

11. The gain device of claim 1 wherein the channels are defined by opposing walls, wherein the walls are approximately 100 nm thick.

12. A gain device comprising a plurality of channels having a hexagonal shape.

13. The gain device of claim 1 wherein the channels extend transversely through the device so as to define a first channel end and a second channel end.

14. The gain device of claim 1 wherein the device is at least 1.2 mm thick, and wherein the device has a diameter that is at least one cm.

15. The gain device of claim 13 wherein the first and second channel ends are coated with a conductive layer.

16. The gain device of claim 15 wherein the conductive layer is a conductive material selected from the group consisting of gold, platinum, palladium, nichrome, copper, and combinations thereof.

17. The gain device of claim 16 wherein the channels have interior surfaces, and wherein the interior surfaces are coated with a first resistive coating and a secondary electron emissive coating.

18. The gain device of claim 17 wherein the resistive coating comprises a combination of Al 2 O 3 and tungsten, and wherein the secondary electron emissive coating is made from a material selected from the group consisting of Al 2 O 3 , MgO, and combinations thereof.

19. The gain device of claim 17 wherein the first coating is between 10 and 1000 nm thick and the second coating is between 1-100 nm thick.

Assignees

• Uchicago Argonne Llc

Inventors

• Wagner Robert G
• Pellin Michael J
• Nicholson Howard
• Xia Lei
• Wang Jingbo
• Xie Junqi
• Mane Anil U
• Elam Jeffrey W

Classifications

• H01J9/125

  of secondary emission electrodes · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B29C64/135

  the energy source being concentrated, e.g. scanning lasers or focused light sources · CPC title

• H01J1/32 Primary

  Secondary-electron-emitting electrodes (H01J1/35 takes precedence) · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title