The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2009
Filed:
Mar. 06, 2007
Brian G. Frederick, Orono, ME (US);
Lawrence J. Legore, Montvillie, ME (US);
Rosemary Smith, Bangor, ME (US);
Scott Collins, Bangor, ME (US);
Robert H. Jackson, Iii, Veazie, ME (US);
Brian G. Frederick, Orono, ME (US);
Lawrence J. LeGore, Montvillie, ME (US);
Rosemary Smith, Bangor, ME (US);
Scott Collins, Bangor, ME (US);
Robert H. Jackson, III, Veazie, ME (US);
Stillwater Scientific Instruments, Orono, ME (US);
University of Maine, Orono, ME (US);
Abstract
The present invention relates generally to grids for gating a stream of charged particles and methods for manufacturing the same. In one embodiment, the present invention relates to a Bradbury-Nielson gate having transmission line grid elements. In one embodiment is a feed structure for a gating grid where a drive source is coupled to a feeding transmission line with the same geometry as the chopper and continues with the same geometry to a termination transmission line. Also included is a method for fabricating a gate for charged particles which includes micromachining at least two gate elements from at least one wafer, wherein each gate element includes at least one grid element; metalizing the grid elements; and assembling the gate elements such that the grid elements of the gate elements are interleaved, thereby forming a Bradbury Nielson gate.