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. 20, 1989
Filed:
Feb. 10, 1987
Yasuo Kato, Zama, JP;
Isao Ochiai, Hachioji, JP;
Yoshio Watanabe, Tokyo, JP;
Seiichi Murayama, Kokubunji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A plasma X-ray source in which a discharge tube containing a pair of coaxial cylindrical electrodes is filled with a gas, a high voltage pulse from a charged capacitor is applied between the cylindrical electrodes to convert the gas into a plasma, the plasma is focused on a position near the end of the inner one of the cylindrical electrodes to generate X-rays, and the X-rays thus generated are emitted to the outside of the discharge tube through a window provided thereon, is disclosed. In the above X-ray source, the high voltage pulse is applied between the cylindrical electrodes so that the inner cylindrical electrode is at a negative potential with respect to the outer cylindrical electrode.