公开(公告)号：US20100096544A1

公开(公告)日：2010-04-22

申请号：US12579782

申请日：2009-10-15

申请人： Laurence E. Slivon ,  Donald V. Kenny ,  Carl A. Alexander ,  Julius S. Ogden ,  Lee A. Siers ,  Timothy L. Hayes ,  Lindy E. Dejarme

发明人： Laurence E. Slivon ,  Donald V. Kenny ,  Carl A. Alexander ,  Julius S. Ogden ,  Lee A. Siers ,  Timothy L. Hayes ,  Lindy E. Dejarme

IPC分类号： H01J49/00 ,  B01D59/44

CPC分类号： H01J49/0022 ,  H01J49/04

摘要： A portable detection device includes a surface sampling probe connected to a mass spectrometer, preferably mounted on a portable cart, and a transfer line for transporting samples from the probe to the mass spectrometer. The surface sampling probe is formed from a circular block or disk of metal such as copper and is provided with various holes in which cartridge heaters are located. The disk is preferably electroplated with nickel and then gold to allow for efficient heat transfer to the surface to be sampled. With this arrangement, in addition to other advantages, the presence of very low volatile or non-volatile materials may be determined.

摘要翻译： 便携式检测装置包括连接到质谱仪的表面采样探针，优选安装在便携式推车上，以及用于将样品从探针输送到质谱仪的传输线。 表面采样探针由诸如铜的金属的圆形块或盘形成，并且设置有盒式加热器所在的各种孔。 该盘优选用镍电镀，然后镀金以允许有效的热传递到待采样的表面。 利用这种布置，除了其它优点之外，可以确定非常低挥发性或非挥发性材料的存在。

公开(公告)号：US4845364A

公开(公告)日：1989-07-04

申请号：US161546

申请日：1988-02-29

申请人： Carl A. Alexander ,  Julius S. Ogden ,  Richard A. Severance

发明人： Carl A. Alexander ,  Julius S. Ogden ,  Richard A. Severance

IPC分类号： H01J49/14

CPC分类号： H01J49/142

摘要： An improved ion source for characterization of a surface of a sample including a housing oriented about a central axis, Z; a magnet cooperatively disposed within the housing for producing a magnetic field along the Z axis direction an anode radially disposed within the housing and within the magnetic field of the magnet that defines an annular ionization chamber having an open annular space and further forming a central tubular space about the Z axis; a cathode cooperatively disposed at the anode and within the annular ionization chamber; an extractor grids means cooperatively disposed within the housing so as to form a boundary of the ionization chamber; annular focusing rings disposed on the housing and externally to the extractor grids for focusing ions emerging therefrom; neutralizer filament cooperatively disposed with focusing rings; a central lens cooperatively disposed about the central axis Z in the central tubular space formed by the anode and adapted to accept ions and neutrals emanating from a sample; an entrance grid disposed at the sample end of the central lens; a second ionizer disposed along the length of the central lens; an exit grid for directing ions toward a measurement instrument such as a mass spectrometer; and an input gas pipe cooperatively disposed with the housing and anode so as to supply gas to the ionization chamber. A shield is preferably used to shield the apparatus from electromagnetic interference.

摘要翻译： 用于表征样品表面的改进的离子源，包括围绕中心轴Z定向的壳体; 协同地设置在壳体内的磁体，用于产生沿着Z轴方向的磁场，阳极，径向地设置在壳体内并且在磁体的磁场内，该磁体限定具有开放环形空间的环形电离室，并进一步形成中心管状空间 关于Z轴; 阴极，协同地设置在阳极和环形电离室内; 提取器网格协同地设置在壳体内，以便形成电离室的边界; 环形聚焦环设置在壳体上并且在提取器栅格的外部，用于聚焦离开其的离子; 中和器长丝与聚焦环协同配置; 中心透镜在由阳极形成的中心管状空间中围绕中心轴线Z配合设置并适于接收从样品发出的离子和中性粒子; 布置在中心透镜的样品端的入口格栅; 沿着所述中心透镜的长度设置的第二离子发生器; 用于将离子引导到诸如质谱仪的测量仪器的出口格栅; 以及与所述壳体和阳极配合配置的输入气体管道，以向所述电离室供应气体。 优选地使用屏蔽来屏蔽设备免受电磁干扰。