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:
Dec. 13, 2016
Filed:
Sep. 13, 2013
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Lambertus Hesselink, Atherton, CA (US);
R. Fabian W. Pease, Stanford, CA (US);
Piero Pianetta, Palo Alto, CA (US);
Juan R. Maldonado, Menlo Park, CA (US);
Yao-Te Cheng, New Taipei, TW;
Jason Ryan, Stanford, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Abstract
A photo-emitter x-ray source is provided that includes a photocathode electron source, a laser light source, where the laser light source illuminates the photocathode electron source to emit electrons, and an X-ray target, where the emitted electrons are focused on the X-ray target, where the X-ray target emits X-rays. The photocathode electron source can include alkali halides (such as CsBr and CsI), semiconductors (such as GaAs, InP), and theses materials modified with rare Earth element (such as Eu) doping, electron beam bombardment, and X-ray irradiation, and has a form factor that includes planar, patterned, or optically patterned. The X-ray target includes a material such as tungsten, copper, rhodium or molybdenum. The laser light source is pulsed or configured by light modulators including acousto-optics, mode-locking, micro-mirror array, and liquid crystals, the photocathode electron source includes a nano-aperture or nano-particle arrays, where the nano-aperture is a C-aperture or a circular aperture.