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

Patent metadata

Field	Value
Publication number	US-10403464-B2
Application number	US-201715718407-A
Country	US
Kind code	B2
Filing date	Sep 28, 2017
Priority date	Sep 28, 2017
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

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 embodiments of the invention in which an exclusive property or privilege is claimed is defined as follows:

1. A method for producing microchannel plates comprising:
a) providing a pre-polymer; and
b) directing a laser over the pre-polymer into a pre-determined pattern to generate a microchannel plate comprising a plurality of channels, wherein the microchannel plate has an open area ratio of at least 80 percent.

2. The method of claim 1 wherein the microchannel plate has a diameter of at least one cm and a thickness of at least 1.2 mm.

3. The method of claim 2 wherein the method takes less than 24 hours to complete.

4. The method of claim 1 wherein the channels are hexagonal.

5. The method of claim 4 wherein the method further comprises coating terminating ends of the hexagonal channels with a conductive coating.

6. The method of claim 5 wherein the hexagonal channels further comprise an interior surface, and wherein the method further comprises:
c) depositing a resistive layer on the interior surface of the channels; and
d) depositing a secondary electron emissive coating on the resistive layer.

7. The method of claim 6 wherein the resistive coating comprises a combination of Al 2 O 3 and tungsten and the secondary electron emissive coating is made from a material selected from the group consisting of Al 2 O 3 , MgO, and combinations thereof.

8. A method for efficiently 3D printing an object comprising:
a) providing a pre-polymer into a sample holder;
b) directing a laser over the pre-polymer in a predetermined pattern to create a layer of an object having a height, H;
c) raising the sample holder a distance equal to H along a latitudinal axis that is parallel to the height of the object and runs through the center of the layer;
d) directing the laser over the pre-polymer in the predetermined pattern;
e) repeating steps a)-d) until the object has a first predetermined area and a predetermined second height;
f) resetting the position of the sample holder;
g) moving the sample holder along a latitudinal axis of the layer a predetermined distance;
h) repeating steps a)-g) until the object has a final area;
i) resetting the position of the sample holder;
j) raising the sample holder by a distance of the predetermined second height plus H along its latitudinal axis; and
k) repeating steps a)-j) until the object has a final area and final height.

Assignees

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

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B29C64/135

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

• H01J9/125

  of secondary emission electrodes · CPC title

• H01J1/32 Primary

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