公开(公告)号：US4253038A

公开(公告)日：1981-02-24

申请号：US919610

申请日：1978-06-27

申请人： Akira Hosoya ,  Kunihiro Maeda ,  Keiichi Kuniya ,  Sadami Tomita ,  Kohnosuke Ohishi

发明人： Akira Hosoya ,  Kunihiro Maeda ,  Keiichi Kuniya ,  Sadami Tomita ,  Kohnosuke Ohishi

IPC分类号： H01J61/09 ,  G01N21/31 ,  H01J1/02 ,  H01J61/68 ,  H01J1/14

CPC分类号： H01J1/025

摘要： A light source is disclosed which can be used in atomic absorption analysis using the Zeeman effect. In operation, an external magnetic field is applied to the hollow cathode of the light source to cause the Zeeman-splitting of an emission line from the cathode material. The hollow cathode is made of a ferromagnetic metal as which is the element of interest for analysis and a metal for reducing the magnetic shield of the externally applied magnetic field by the ferromagnetic metal so that the external magnetic field effectively acts on the hollow portion of the cathode to provide the desired Zeeman-splitting. The hollow cathode is designed such that the product of the saturation flux densities of the cathode materials and the volume thereof is equal to or smaller than 0.2(Wb.multidot.m).times.10.sup.-6. The emission line from the cathode material is produced by excitation from a high frequency power supply, the power supply being connected to the cathode and the anode of the light source.

摘要翻译： 公开了一种可用于使用塞曼效应进行原子吸收分析的光源。 在操作中，将外部磁场施加到光源的中空阴极，以使来自阴极材料的发射线的塞曼分裂。 中空阴极由用于分析的元素的铁磁金属制成，并且金属用于通过强磁性金属减少外部施加的磁场的磁屏蔽，使得外部磁场有效地作用在 阴极以提供所需的塞曼分裂。 空心阴极的设计使得阴极材料的饱和磁通密度及其体积的乘积等于或小于0.2（Wb×m）×10-6。 来自阴极材料的发射线通过从高频电源的激发产生，电源连接到光源的阴极和阳极。