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:
Jun. 21, 2011
Filed:
Dec. 17, 2008
Applicants:
Ali Jaafar, Eden Prairie, MN (US);
Victor I. Chornenky, Minnetonka, MN (US);
Inventors:
Ali Jaafar, Eden Prairie, MN (US);
Victor I. Chornenky, Minnetonka, MN (US);
Assignee:
Minnesota Medical Physics LLC, Edina, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 35/02 (2006.01); H01J 35/06 (2006.01); H01J 35/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein is an x-ray field emission apparatus, system and method, the apparatus having a hollow probe held at vacuum; a cathode enclosed within the probe, the cathode producing an electron stream when connected to a high negative potential; an anode enclosed within the probe and separated from the cathode by a gap, said the providing a target for the electron stream; and a shield assembly comprising a hollow shield electrode positioned within the probe and about the cathode.