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:
Oct. 27, 2015
Filed:
Dec. 03, 2010
Applicants:
Oscar Hemberg, Kista, SE;
Tomi Tuohimaa, Kista, SE;
Inventors:
Oscar Hemberg, Kista, SE;
Tomi Tuohimaa, Kista, SE;
Assignee:
EXCILLUM AB, Kista, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05G 1/08 (2006.01); H01J 35/02 (2006.01); H01J 35/18 (2006.01); H01J 35/08 (2006.01); H01J 35/00 (2006.01);
U.S. Cl.
CPC ...
H01J 35/18 (2013.01); H01J 35/025 (2013.01); H01J 35/08 (2013.01); H01J 35/00 (2013.01); H01J 35/02 (2013.01); H01J 2235/082 (2013.01); H01J 2235/168 (2013.01); H01J 2235/183 (2013.01); H05G 1/08 (2013.01);
Abstract
An X-ray window including a primary and a secondary window element. In order to evaporate debris by ohmic heating, current flows through the secondary (upstream) window element. Meanwhile, electric charge originating from electron irradiation and/or depositing charged particles is to be drained off the window element. To prevent large debris particles from short-circuiting the window element and changing the desired heating pattern, the current for heating the window element flows through a layer which is insulated from the charge-drain layer.