SHIELDING TO CONFINE MAGNETIC FIELD TO ION SOURCE AREA OF A NEUTRON GENERATOR
A neutron generator in which a target plate is bombarded by ions of a hydrogen isotope is described. The ions are formed in a discharge that takes place between two flat plates, one of which is provided with an aperture for the ions produced, serving as a cathode. The discharge is surrounded by a cylindrical anode. An axial magnetic field is provided, which is, in accordance with the invention, completely screened from the acceleration space, the space between the target electrode and the apertured plate. There is no magnetic field in the acceleration space, so that higher acceleration voltages are permissible, since the reduction of the breakdown voltage by the apparent increase in pressure due to the presence of a magnetic field does not occur in this case. (M.C.G.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-18-004073
- Assignee:
- North American Philips Co., Inc.
- Patent Number(s):
- US 3112401
- OSTI ID:
- 4131806
- Resource Relation:
- Patent File Date: 1957 Sep 27; Other Information: Orig. Receipt Date: 31-DEC-64
- Country of Publication:
- United States
- Language:
- English
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NEUTRON GENERATOR
Inverted magnetron ion source