发明名称 Plasma mass filter
摘要 A method for separating charged particles according to their mass requires providing a multi-species plasma in a chamber. The plasma includes both relatively low-mass charged particles (M1) and relatively high-mass charged particles (M2) which are influenced by crossed electric and magnetic fields (ExB) in the chamber. Specifically, the crossed fields (ExB) rotate the particles M1 and M2 in respective orbits that are characteristic of the mass of the particular particle. Inside the chamber, each charged particle has a respective cyclotron frequency (OMEGA), and the plasma is maintained with a density wherein the collisional frequency (&ngr;) of particles in the chamber relates to the cyclotron frequency such that their ratio is greater than approximately one (OMEGA/&ngr;>=1). Additionally, a collector is positioned to intercept the particles (M2) in their orbits and to thereby separate the particles (M2) from the particles (M1).
申请公布号 US6248240(B1) 申请公布日期 2001.06.19
申请号 US19990464518 申请日期 1999.12.15
申请人 ARCHIMEDES TECHNOLOGY GROUP, INC. 发明人 OHKAWA TIHIRO
分类号 H01J49/26;B01D59/48;B01J19/08;H01J49/28;H01J49/30;H01J49/42;H01J49/46;H05H1/00;(IPC1-7):B03C1/00;B01D21/26 主分类号 H01J49/26
代理机构 代理人
主权项
地址