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. 30, 2022
Filed:
Nov. 23, 2021
Applicant:
Sigray, Inc., Concord, CA (US);
Inventors:
Wenbing Yun, Walnut Creek, CA (US);
Srivatsan Seshadri, Pleasanton, CA (US);
Ruimin Qiao, Berkeley, CA (US);
Janos Kirz, Berkeley, CA (US);
Sylvia Jia Yun Lewis, San Francisco, CA (US);
Assignee:
Sigray, Inc., Concord, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 23/223 (2006.01); G01N 23/085 (2018.01);
U.S. Cl.
CPC ...
G01N 23/223 (2013.01); G01N 23/085 (2018.02); G01N 2223/041 (2013.01); G01N 2223/076 (2013.01); G01N 2223/204 (2013.01); G01N 2223/501 (2013.01);
Abstract
A fluorescence mode x-ray absorption spectroscopy apparatus includes an electron bombardment source of x-rays, a crystal analyzer, the source and the crystal analyzer defining a Rowland circle having a Rowland circle radius (R), a detector, and at least one stage configured to position a sample such that at least a portion of the sample is between the crystal analyzer and the detector.