专利名称：Magnetically shielded high voltage electron accelerator
发明人：James B. Schroeder
申请号：US08/247261
申请日：19940523
公开号：US05463268A
公开日：
19951031
专利内容由知识产权出版社提供
摘要：The high voltage electrostatic accelerator of this invention has spark arrester rings which form magnetic shield elements around an acceleration tube and which together with mu-metal rings between accelerator gments shield the electrons being accelerated from stray static and dynamic magnetic fields. The spark arresters surround the accelerating electrodes. The rings between accelerator gments are formed of mu-metal, an alloy of nickel designed for its magnetic shielding properties and consisting of 77 percent nickel, 4.8 percent copper, 1.5 percent chrome and 14.9 percent iron. The mu-metal spark arresters together with the rings between accelerators gments provide an effective magnetic shield in a cost-effective manner. Becau mu-metal has a high permeability, magnetic field lines tend to travel about the Mu- metal rings rather than pass through the acceleration tube, where they would influence electrons being accelerated. The discontinuous nature of the shield allows it to be super- positioned as an integral part of the spark arresters positioned about the accelerating electrodes.
申请人：NATIONAL ELECTROSTATICS CORP.
代理机构：Lathrop & Clark
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