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:
Jul. 22, 2008
Filed:
Feb. 01, 2007
Yit Aun Lim, Boston, MA (US);
Eckhard Bez, Littleton, MA (US);
Xiaozhong Zhang, Hudson, NH (US);
Werner E. Maas, Boxford, MA (US);
Yit Aun Lim, Boston, MA (US);
Eckhard Bez, Littleton, MA (US);
Xiaozhong Zhang, Hudson, NH (US);
Werner E. Maas, Boxford, MA (US);
Broker Bio Spin Corporation, Billerica, MA (US);
Abstract
In a nuclear magnetic resonance probe, the sample coil is connected to the RF excitation source via transmission lines that are arranged to generate one or more nodal points at theH excitation frequency along their lengths and a balanced magnetic filed profile within the sample coil. Heat exchangers are then connected directly to the inner conductor of the transmission line at these nodal points. The transmission line inner conductors are in direct contact with the sample coil and efficiently cool the coil to cryogenic temperatures without interfering with theH resonance or RF profile.