System and method for producing stacked field emission structures

• US 8,760,251 B2
• Filed: 09/27/2011
• Issued: 06/24/2014
• Est. Priority Date: 09/27/2010
• Status: Expired due to Fees

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Correlated Magnetics Research, LLC
• Inventors: Roberts, Mark D., Fullerton, Larry W.
• Primary Examiner(s): Talpalatski, Alexander
• Application Number:
  US13/246,584
• Publication Number:
  US 20120092103A1
• Time in Patent Office: 1,001 Days
• Field of Search: 335/207, 335/306
• US Class Current: 335/306
• CPC Class Codes: H01F 7/0284 using a trimmable or adjustable magnetic circuit, e.g. for a symmetric dipole or quadrupole magnetic field

Abstract

A stacked field emission system having an outer surface includes at least three field emission structure layers having a stacked relationship that defines a field characteristic of the outer surface. The mechanisms holds the at least three field emission structure layers such that a plurality of interface surfaces of the at least three field emission structure layers correspond to a plurality of interface boundaries between adjacent field emission structure layers. Each of the at least three field emission structure layers includes a plurality of field emission sources having positions, polarities, and field strengths in accordance with a spatial force function that corresponds to a relative alignment of the at least three field emission structures layers in the stacked relationship. A movement of at least one of the at least three field emission structures varies the field characteristics of the outer surface.

Claims

1. A stacked field emission system having an outer surface, comprising:

at least three field emission structure layers having a stacked relationship that defines a field characteristic of the outer surface;

a constraining mechanism for maintaining said at least three field emission structure layers in said stacked relationship by holding the at least three field emission structure layers such that a plurality of interface surfaces of the at least three field emission structure layers correspond to a plurality of interface boundaries between adjacent field emission structure layers;

wherein each of said at least three field emission structure layers comprises a plurality of field emission sources having positions, polarities, and field strengths in accordance with a spatial force function that corresponds to a relative alignment of said at least three field emission structure layers in the stacked relationship;

wherein each field emission source of said at least three field emission structure layers has one of a first vector direction or a second vector direction, said second vector direction being opposite said first vector direction, said first vector direction and said second vector direction corresponding to a magnetization angle relative to said plurality of interface boundaries;

wherein vectors of field emission sources of at least two interfacing field emission structure layers can be aligned to produce at least one vector path that enables field emissions to travel through the at least two interfacing field emission structure layers;

wherein vectors of field emission sources of at least two interfacing field emission structure layers can be misaligned resulting in vector cancellation; and

wherein a movement of at least one of said at least three field emission structures varies the field characteristics of the outer surface.

2. The stacked field emission system of claim 1, wherein said field emission sources of said at least three field emission structure layers have polarities in accordance with at least one code.

3. The stacked field emission system of claim 2, wherein said field emission sources of said at least three field emission structure layers have polarities in accordance with the same code.

4. The stacked field emission system of claim 1, wherein said at least three field emission structure layers can be aligned to achieve correlation of all of said field emission sources.

5. The stacked field emission system of claim 1, wherein the stacked relationship comprises at least one of a vertically stacked relationship, a horizontally stacked relationship, or a concentrically stacked relationship.

6. The stacked field emission system of claim 1, wherein the movement comprises at least one of rotational movement or translational movement.

7. The stacked field emission system of claim 1, wherein the plurality of emission sources comprise emission sources having field emission vectors substantially perpendicular to an interface surface of a field emission structure layer.

8. The stacked field emission system of claim 1, wherein the plurality of emission sources comprise emission sources having field emission vectors not perpendicular to an interface surface of a field emission structure layer.

9. The stacked field emission system of claim 1, wherein the plurality of emission sources comprises a Halbach array.