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. 01, 2010
Filed:
Jan. 27, 2006
Yoshiaki Ito, Uji, JP;
Shinzo Yoshikado, Kyotanabe, JP;
Toru Nakamura, Kyoto, JP;
Yoshikazu Nakanishi, Otsu-shi, Shiga 520-0821, JP;
Yoshiaki Ito, Uji, JP;
Shinzo Yoshikado, Kyotanabe, JP;
Toru Nakamura, Kyoto, JP;
Yoshikazu Nakanishi, Otsu-shi, Shiga 520-0821, JP;
Kyoto University, Kyoto, JP;
The Doshisha, Kyoto, JP;
Asahi Roentgen Ind. Co., Ltd., Kyoto, JP;
Other;
Abstract
An X-ray generator uses a high electrical field generated when a hemimorphic crystal is heated or cooled. The crystal may be lithium niobate polarized in one direction. An X-ray target is placed inside a housing inside which a vacuum is maintained. A tungsten line containing thorium is placed between the crystal and the target. When the crystal is heated or cooled by a Pelletier element, an intense electrical field is generated around the crystal. Thermoelectrons released from the tungsten line accelerate as a result of the electrical field and collide with the X-ray target. The X-rays released at this time radiate through a beryllium window exteriorly of the housing. Intense X-rays are generated without using large scale equipment, such as a high voltage power source.