公开(公告)号：EP0827179A1

公开(公告)日：1998-03-04

申请号：EP96306329.2

申请日：1996-08-30

申请人： VARIAN ASSOCIATES, INC.

发明人： Hablanian,Marsbed ,  Ratnam,Asoka

IPC分类号： H01J27/14 ,  H01J49/12 ,  H01J41/04

CPC分类号： H01J27/14 ,  H01J41/04 ,  H01J49/126

摘要： A single potential ion source 50 includes a single conical electrode 58 encircled by a cylindrical magnet 60. At least one filament 56 is placed proximate to the electrode. This arrangement serves to accelerate electrons created by energy from the filament toward a centre axis 59 of the conical electrode. The electrons collide with gas particles to create a focussed ion stream. The stream may be directed into a magnetic field in a mass spectrometer tube. A base 52 supports pins 54 for electrical connections to the electrode 58 and filaments 56.

摘要翻译： 单个电势离子源50包括由圆柱形磁体60包围的单个圆锥形电极58.至少一个细丝56靠近电极放置。 这种布置用于将由能量产生的电子加速到锥形电极的中心轴线59。 电子与气体颗粒碰撞以产生聚焦的离子流。 流可以被引导到质谱管中的磁场中。 基座52支撑用于电连接到电极58和细丝56的销54