Electric lamp and discharge devices – With temperature modifier – For lead-in-seal or stem protection
Patent
1986-02-05
1988-04-26
Moore, David K.
Electric lamp and discharge devices
With temperature modifier
For lead-in-seal or stem protection
313154, 313156, H01J 150, H01J 334
Patent
active
047407581
ABSTRACT:
Apparatus for generating a magnetic field having a spatially predetermined field pattern in a useful volume, where bodies of ferro-magnetic material influencing the field pattern are disposed in the useful volume. To assure a spatially predetermined field pattern in the useful volume with only small field errors, outside and on opposite sides of the useful volume at least one thin plate-shaped body of predetermined geometric extent comprising a material having high permeability is provided, of which the surfaces facing the useful volume are shaped and arranged so that the surfaces lie on a magnetic equipotential surface of the magnetic field to be generated in the useful volume.
REFERENCES:
patent: 3005954 (1961-10-01), Heard
patent: 4047068 (1977-09-01), Ress et al.
1972 Applied Superconductivity Conference, 1972, pp. 226, 230, 231 and 238.
IEEE Trans. on Nuclear Science, vol. NS-30, No. 4, 8/83, pp. 2531-2533.
Proceedings of the 8th Int'l Conf. on High-Energy Accelerators Cern 1971, Geneva, Switzerland, 1971, pp. 177-182.
Moore David K.
Siemens Aktiengesellschaft
Wieder K.
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