Radiant energy – With charged particle beam deflection or focussing – Magnetic lens
Reexamination Certificate
2008-04-30
2010-10-12
Berman, Jack I (Department: 2881)
Radiant energy
With charged particle beam deflection or focussing
Magnetic lens
C250S492100, C250S492300, C335S210000, C335S213000, C335S214000
Reexamination Certificate
active
07812319
ABSTRACT:
A beam guiding magnet includes a first and second coil system, which are designed such that the dipole moments of the first and second coil systems point in opposite directions. Since the dipole moments of the first and second coil systems point in opposite directions, the two dipole moments at least partially compensate for one another. The resultant dipole moment of the beam guiding magnet may be reduced. The beam guiding magnet may take into account that the remote field of a beam guiding magnet can be lowered by a reduction in the dipole moment of the beam guiding magnet. The dipole moment decreases with the cube of the distance from the beam guiding magnet. A quadruple moment, which on attenuation of the dipole moment represents the next strongest field component, decreases with the fifth power of that distance.
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European Search Report dated Aug. 19, 2008.
A. Dael, et al., “Design Study of the Superconducting Magnet for a large Acceptance Spectrometer”, IEEE Transactions on Applied Superconductivity, vol. 12, No. 1, Mar. 2002, Seiten 353 bis 357.
Diehl Dirk
Gumbrecht Rene
Schneider Eva
Berman Jack I
Brinks Hofer Gilson & Lione
Maskell Michael
Siemens Aktiengessellschaft
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