Ge Medical Systems Global Technology Company, LLC

Ge Medical Systems

Long-Zhi Jiang

Michael J Radziun

Gregory Alan Lehmann

Yu Wang

Timothy John Havens

Scott Thomas Mansell

Gregory F Hayworth

Andrew T Bollinger

Kenneth E Gurt

A mechanical stabilizer-tuned damper is attachable to the first upper magnet assembly of a high field open magnet, which magnet includes a first upper magnet assembly, a lower second magnet assembly and at least one non-magnetizable support beam therebetween. The mechanical stabilizer-tuned damper reduces the dynamic response of the magnet. A connecting device is provided which consists of a threaded rod mounted to an attachment bracket through a linear bearing and vibration mount. A series of non-magnetic and extremely low conductivity plates of various weights are attachable to the rod to change the mass and the tuning frequency of the damper. The location and size of the mechanical stabilizer-tuned damper are determined to balance the frequency of the field oscillation and physical room. The direction of orientation depends upon the direction of motion to be dampened or controlled.

Mechanical stabilizer-tuned damper for high field open magnet

A secure and stable mounting system for High Field Open (HFO) magnets. A stainless steel mounting plate is secured to the RF screen room floor and the HFO magnet is secured to the mounting plate. Metal angle members are welded around the perimeter edges of the steel plate, and brass wool is inserted between the angle members and the copper sheeting on the floor of the screen room. The invention minimizes magnet motion and thus reduces the risk of image phase ghosting. The invention also provides RF screen room integrity.

Mounting system and RF shield for high field open magnet

Growing community of inventors

Florence, SC, United States of America

Long-Zhi Jiang