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:
Apr. 28, 2020
Filed:
Apr. 26, 2018
Thermo Scientific Portable Analytical Instruments Inc., Tewksbury, MA (US);
William Ferneau English, II, Tewksbury, MA (US);
THERMO SCIENTIFIC PORTABLE ANALYTICAL INSTRUMENTS INC., Tewksbury, MA (US);
Abstract
An embodiment of an X-ray tube is described that comprises an outer cylinder; a window positioned on an end of the outer cylinder; an electron gun comprising an emission orifice, wherein the electron gun is coupled to a side of the outer cylinder at an angle that orients the emission orifice toward the window; and a rod centrally positioned within the outer cylinder, wherein the rod comprises a concave geometry at a distal end proximal to the electron gun and a target surface configured at an angle that orients the target surface towards the emission orifice, wherein the concave geometry is configured to position the target surface to have a focal spot size of an electron beam from the emission orifice in range of about 2-6 μm.