Stray field plot of a NMR magnetStray field plot of a NMR magnetNMR / Magnet, stray field shielding

Magnetic shielding against NMR stray fields is required to reduce strong magnetic fields of NMR’s, mostly to keep the area around the magnet below 5 gauss (500 µT). However, the application of the magnetic shield is not limited to influence only the 5 gauss line. With aid of the Systron PowerShield® stray field shielding system, other goals of limiting the stray fields can also be achieved.

With the Systron PowerShield®  stray field shielding system, stray fields of both, shielded and unshielded NMR’s are attenuated. Prior to any shielding work, Systron performs 2D and/or 3D FEM (Finite Element Modeling) software simulation to determine the thickness and the appropriate shielding area. Typical use of the shielding measures is to maintain the 5 gauss line as required in publicly accessible areas.
 
 
NMR magnet below a lecturing hall at a universityNMR magnet below a lecturing hall at a university Silicon Iron shielding for DC stray fieldSilicon Iron shielding for DC stray field NMR stray field shielding conceptNMR stray field shielding concept Simulation of NMR stray field with Finite Element Modeling (FEM)Simulation of NMR stray field with Finite Element Modeling (FEM)