公开(公告)号：US4107526A

公开(公告)日：1978-08-15

申请号：US758836

申请日：1977-01-12

申请人： James T. McKinney ,  Thomas W. Rusch

发明人： James T. McKinney ,  Thomas W. Rusch

IPC分类号： G01N23/227 ,  G01N23/22 ,  G01Q30/20 ,  H01J37/252 ,  H01J49/14 ,  H01J49/44 ,  H01J49/48 ,  H01J35/00

CPC分类号： G01N23/22 ,  H01J49/142 ,  H01J49/48 ,  H01J49/482 ,  G01N2223/056 ,  G01N2223/104

摘要： An ion scattering spectrometer (ISS) providing enhanced sensitivity, reduced background, and preferential detection of low-mass scattered ions over that of high-mass sputtered ions is disclosed. These advantages are accomplished by a biasing arrangement which maintains a potential difference between the analyzer exit and the detector input at less than 30 volts and substantially eliminates the high potential provided on detector inputs of prior art ion scattering spectrometers which attracted and thereby accelerated ions prior to impinging on the inputs.

摘要翻译： 公开了一种离子散射光谱仪（ISS），其提供了比高质量溅射离子更高的灵敏度，降低的背景和低质量散射离子的优先检测。 这些优点通过偏置装置来实现，该偏置装置在分析器出口和检测器输入之间保持小于30伏的电位差，并且基本上消除了现有技术的离子散射光谱仪的检测器输入端上提供的高电位， 影响投入。

公开(公告)号：US3939344A

公开(公告)日：1976-02-17

申请号：US535805

申请日：1974-12-23

申请人： James T. McKinney

发明人： James T. McKinney

IPC分类号： G01N23/225 ,  G01N27/62 ,  G01Q30/08 ,  H01J37/252 ,  H01J49/00 ,  H01J49/14 ,  H01J49/42 ,  H01J39/34

CPC分类号： H01J49/147

摘要： A multipurpose apparatus is useful in either prefiltering ions or in forming ions from residual gases, prior to the analysis of the prefiltered or formed ions in a quadrupole type mass spectrometer. The apparatus includes a cylindrical grid, an annular entrance aperture wherein a center circular baffle has a unidimensional electrode extending along the axis of the grid, and a circular exit aperture, the axis of the grid being in line with the axis of a quadrupole type mass analyzer. The application of appropriate potentials to these members allows only low energy ions to pass therethrough and into the quadrupole analyzer. High energy ions or neutral particles having an axial trajectory are blocked by the baffle, while divergent high energy charged particles are insufficiently deflected and hence do not pass through the exit aperture. The apparatus further includes a filament positioned outside the grid, which, when energized, emits electrons. The electrons are accelerated toward the grid, passing therethrough whence they ionize residual gas atoms therein, which ionized atoms are extracted through the exit aperture and pass into the quadrupole analyzer.

摘要翻译： 在四极型质谱仪中分析预过滤或形成的离子之前，多用途设备可用于预过滤离子或从残留气体形成离子。 该装置包括圆柱形栅格，环形入口孔，其中中心圆形挡板具有沿着栅格轴线延伸的一维电极和圆形出口孔，栅格轴线与四极型质量块的轴线一致 分析仪 对这些构件施加适当的电势仅允许低能量离子通过并进入四极分析器。 具有轴向轨迹的高能离子或中性粒子被挡板阻挡，而发散的高能带电粒子不足以偏转，因此不通过出口孔。 该装置还包括位于栅格外部的细丝，当被激发时，其发射电子。 电子被加速到栅极，通过它们，从而电离其中的残余气体原子，离子化的原子通过出口孔提取并进入四极分析器。

公开(公告)号：US5337608A

公开(公告)日：1994-08-16

申请号：US993101

申请日：1992-12-18

申请人： Daniel Egan ,  Jerry Alexander ,  James T. McKinney ,  John F. Runyon

发明人： Daniel Egan ,  Jerry Alexander ,  James T. McKinney ,  John F. Runyon

IPC分类号： G01L25/00

CPC分类号： G01L25/003

摘要： A drive roller torque reference cartridge for calibrating a drive force tester. The reference cartridge uses a magnetic hysteresis brake assembly to controllably resist the rotation of the cartridge drive roller. The magnetic hysteresis brake assembly includes a cylindrical permanent magnet within the drive roller and a coaxial remanently magnetizable sleeve surrounding the drive roller. The drag created by the reference cartridge is substantially independent of the temperature and rotational speed of the drive roller.

摘要翻译： 用于校准驱动力测试仪的驱动滚子扭矩参考卡盘。 参考盒使用磁滞制动器组件来可控制地抵抗盒驱动辊的旋转。 磁滞制动器组件包括驱动辊内的圆柱形永磁体和围绕驱动辊的同轴可磁化的套筒。 由参考盒产生的阻力基本上与驱动辊的温度和转速无关。

公开(公告)号：US4058724A

公开(公告)日：1977-11-15

申请号：US591104

申请日：1975-06-27

申请人： James T. McKinney ,  Robert F. Goff

发明人： James T. McKinney ,  Robert F. Goff

IPC分类号： G01N23/227 ,  G01N23/203 ,  G01Q30/02 ,  H01J49/00 ,  H01J49/44 ,  H01J37/26

CPC分类号： H01J49/004 ,  G01N23/203 ,  H01J49/4215 ,  H01J49/48

摘要： Improved apparatus and method for measuring ions scattered from a surface, to thereby determine the mass of atoms at the surface. The apparatus includes two analyzers, preferably an energy analyzer and mass analyzer positioned in tandem. The mass analyzer may be tuned to pass only ions having the same mass as ions in an incident ion beam, and to reject sputtered ions, some of which may have the requisite energy to pass through the energy analyzer under a given set of conditions.

摘要翻译： 改进的用于测量从表面散射的离子的装置和方法，从而确定表面处的原子质量。 该装置包括两个分析器，优选地串联布置的能量分析器和质量分析器。 质量分析器可以被调谐为仅在入射离子束中通过具有与离子相同质量的离子，并且抑制溅射离子，其中一些离子可以具有在给定条件下通过能量分析器所需的能量。

公开(公告)号：US4117322A

公开(公告)日：1978-09-26

申请号：US855307

申请日：1977-11-28

申请人： James T. McKinney

发明人： James T. McKinney

IPC分类号： G01N23/225 ,  G01Q30/02 ,  H01J37/252 ,  H01J49/28 ,  H01J49/44 ,  G01N23/00

CPC分类号： H01J49/282 ,  H01J37/252

摘要： An improved ion scattering spectrometer (ISS) in which a cylindrical mirror analyzer is provided and an ion gun for providing a beam of noble gas ions which are impinged upon and elastically scattered from a surface to be analyzed is axially positioned within the inner cylinder of the analyzer. A detector for ions passed through the analyzer is axially positioned proximate an energy resolving aperture located at the conjugate point of ions scattered from the sample to thereby detect ions having a narrow energy pass band. The analyzer has a substantially uniform response over a target area that is at least a thousand times the cross-sectional area of the ion beam impinged upon the target so that elemental imaging of the surface can be accomplished.