Mössbauer Magnets and Bucking Coils
Some experiments such as Mössbauer effect measurements require that the magnetic field be reduced
close to one end of a magnet. This is readily accomplished by winding a bucking coil on the end of a
magnet. A typical field profile peaks slightly below the center of the solenoid and decreases along the
axis in the Z direction (Compensated Region). The field near the end of the bucking coil is reduced to a
minimal level (and can be reversed slightly in the negative direction). A minor peak normally occurs
before the field decreases monotonically. The field in the compensated region is typically reduced to 30
to 100 gauss.
Bucking coils can be incorporated into solenoids, split coils, or nuclear demagnetization magnets.
To assist in selecting a magnet for your application, please be prepared to provide your AMI Technical
Sales Representative with the information in the table below. For more complex field profiles or
requirements, please
contact AMI.
Main Coil Strength: |
________ Tesla |
Clear Bore: |
________ inches |
Main Field Homogeneity: |
±_______ % in 1 cm DSV |
Maximum Compensated Field Region: |
________ gauss |
Compensated Field Position**: |
Z(max) ________ inches Z(min) ________ inches |
Special Requirements: |
|
** Z=0 is defined as the physical center of the main solenoid.