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. 14, 2008
Filed:
May. 28, 2004
Tamaki Watanabe, Wako, JP;
Takeshi Katayama, Wako, JP;
Masayuki Kase, Wako, JP;
Tokihiro Ikeda, Wako, JP;
Shin-ichi Watanabe, Tokyo, JP;
Takeo Kawaguchi, Kakogawa, JP;
Tamaki Watanabe, Wako, JP;
Takeshi Katayama, Wako, JP;
Masayuki Kase, Wako, JP;
Tokihiro Ikeda, Wako, JP;
Shin-ichi Watanabe, Tokyo, JP;
Takeo Kawaguchi, Kakogawa, JP;
Riken, Saitama, JP;
Abstract
It is possible to simplify the cooling mechanism of a superconductor, significantly reduce the cost, simplify the measurement work, and reduce the time required for measurement. A beam current meter includes: a cylindrical super conductor beam current sensor arranged in a vacuum vessel in such a manner that the beam incoming into the vacuum vessel is guided to pass through a bore of the vacuum vessel and a bridge portion is formed at the outer diameter, a SQUID arranged at the bridge portion of the beam current sensor; a cylindrical superconductor magnetic shield arranged so as to surround the external diameter side of the beam current sensor in such a manner that the SQUID is positioned between the beam current sensor and the magnetic shield, so that a beam is guided to pass through the bore of the beam current sensor, thereby measuring the beam the beam current of the beam. The beam current meter uses a freezing device as cooling means for cooling the beam current sensor, the SQUID, and the magnetic shield.