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公开(公告)号：US07638745B2
公开(公告)日：2009-12-29
申请号：US11597955
申请日：2005-06-01
Applicant: Erez Halahmi , Ron Naaman , Leeor Kronik
Inventor： Erez Halahmi , Ron Naaman , Leeor Kronik
CPC classification number: G01J1/42 , H01J40/16 , H01J49/488
Abstract: A device and method are presented for use in measuring photon energy. The device comprises at least one pixel unit (10) including a Photocathode (12) that emits electrons in response to absorbed photons; an Anode (14); and a control unit (19) operable for controlling an electric current from the Photocathode (12) to the Anode (14) so as to selectively prevent electrons' arrival to the Anode (14) to thereby scan a spectrum of photon energies incident on the Photocathode (12).
Abstract translation: 提出了一种用于测量光子能量的装置和方法。 该装置包括至少一个像素单元（10），其包括响应于吸收的光子发射电子的光电阴极（12）; 阳极（14）; 以及控制单元（19），其可操作用于控制从光电阴极（12）到阳极（14）的电流，以便选择性地防止电子到达阳极（14），从而扫描入射到阳极 光电阴极（12）。
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公开(公告)号：US20040124353A1
公开(公告)日：2004-07-01
申请号：US10476875
申请日：2003-11-13
Inventor： Scott D Tanner , Dmitry R Bandura , Vladimir Baranov
IPC: H01J049/00
CPC classification number: H01J49/063 , H01J49/0045 , H01J49/105 , H01J49/421 , H01J49/488
Abstract: In a mass spectrometry system, a method of operating a processing section, for example a collision cell, is provided. The method is based on the realization that some interfering ions after collision will have significantly lower kinetic energy than desired analyte ions. These interfering ions can be ions originating from the source, or product ions formed by reaction with gas particles, or ions produced by other processes within the cell. Significantly, these interfering ions can have lower kinetic energies, as compared to desired analyte ions, but this energy differential disappears, or is much reduced, at the exit of the collision cell, rendering post-cell energy discrimination less effective. The invention provides a field within the cell to discriminate against the interfering ions based on their lower kinetic energy.
Abstract translation: 在质谱系统中，提供了操作处理部分，例如碰撞池的方法。 该方法基于这样的认识：碰撞后的一些干扰离子将具有比期望的分析物离子显着更低的动能。 这些干扰离子可以是源自源的离子，也可以是通过与气体粒子反应形成的产物离子，或者由细胞内的其他过程产生的离子。 重要的是，与所需的分析物离子相比，这些干扰离子可以具有较低的动能，但是在碰撞电池出口处，该能量差异消失或大大降低，导致电池后能量辨别效果较差。 本发明提供了在该细胞内基于其较低动能来区分干扰离子的场。
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公开(公告)号：US5594244A
公开(公告)日：1997-01-14
申请号：US406875
申请日：1995-06-12
Applicant: Martin Prutton
Inventor： Martin Prutton
IPC: H01J49/48
CPC classification number: H01J49/488
Abstract: A sample (2) is mounted in a sample holder (13) with a surface (3) of the sample (2) normal to the axis (4) of a pair of truncated electrically conductive frusto-cones (5, 6) which are coaxial and whose apexes meet at the sample surface (3). An exciting source (7) is mounted within the inner cone (5), which is solid and is maintained at ground potential to serve as a first electrode. The outer cone (6) is made of high transparency metallic mesh and is maintained at a positive potential +V (e.g. 1000 v) with respect to the sample surface (3), to serve as a second electrode. These components of the spectrometer (1) are contained within a vacuum system (15), and the potentials are applied to the cones (5, 6) by a biassing means (14). Electrons generated where the beam from the exciting source (7) strikes the sample are emitted into 2.pi. steradians towards an entrance annulus (8). A small fraction of these electrons enter the entrance annulus (8) and find themselves in an electric field which deflects them towards the mesh of the outer cone (6). Electrons of a fixed kinetic energy leaving the sample (2) and entering the annulus (8) are accelerated towards the outer cone (6) on trajectories which will intersect. Those electrons that pass through the outer cone (6) enter a region of field-free space, in which their straight-line trajectories intersect on the surface of a third cone (11, FIG. 2), which is the focal locus of the spectrometer. As electrons of fixed kinetic energy enter the spectrometer through the annulus (8) between the cones (5, 6) they are focused into a ring on the focal locus.
Abstract translation: PCT No.PCT / GB93 / 01957 371日期：1995年6月12日 102（e）1995年6月12日PCT PCT 1993年9月15日PCT公布。 公开号WO94 / 07258 日期1994年3月31日将样品（2）安装在样品保持器（13）中，其中样品（2）的表面（3）垂直于一对截头导电截头圆锥体（5）的轴线（4） ，6），其同轴并且其顶点在样品表面（3）处相遇。 激励源（7）安装在内锥体（5）内，其是固体并保持在地电位以用作第一电极。 外锥体（6）由高透明度金属网制成，并相对于样品表面（3）维持在正电位+ V（例如1000v），用作第二电极。 光谱仪（1）的这些组分包含在真空系统（15）内，并且电位通过偏置装置（14）施加到锥体（5,6）。 在来自激发源（7）的光束撞击样品的地方产生的电子被发射到朝向入口环（8）的2π立体角。 这些电子的一小部分进入入口环（8），并发现自己处于电场，使其朝向外锥（6）的网状物偏转。 离开样品（2）并进入环（8）的固定动能的电子在将要相交的轨迹上朝向外锥体（6）加速。 穿过外锥体（6）的那些电子进入无场空间的区域，其中它们的直线轨迹在第三锥体（11，图2）的表面上相交，第三锥体（11，图2）的表面是 光谱仪 当固定动能的电子通过锥体（5,6）之间的环（8）进入光谱仪时，它们被聚焦到焦点轨迹上的环中。
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公开(公告)号：US5541409A
公开(公告)日：1996-07-30
申请号：US275697
申请日：1994-07-08
Applicant: Carl L. Enloe
Inventor： Carl L. Enloe
CPC classification number: H01J49/488
Abstract: A simple electrostatic retarding potential analyzer configuration is described that gives a true measure of charged particle energy irrespective of the angle of incidence of the particles. The device has an inherently high energy resolution (.DELTA. E/E
Abstract translation: 描述了简单的静电阻滞电位分析器配置，其给出了与颗粒的入射角无关的带电粒子能量的真实测量。 该器件具有固有的高能量分辨率（DELTA E / E <0.01）。 该装置消除了通常与平面网格RPA相关的粒子能量测量中的错误。 来自实验原型的静电模型和结果表明，该装置可以高精度地确定带电粒子的能量。
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公开(公告)号：US4808821A
公开(公告)日：1989-02-28
申请号：US874498
申请日：1986-06-16
Applicant: Hans-Peter Feuerbaum , Juergen Frosien
Inventor： Hans-Peter Feuerbaum , Juergen Frosien
IPC: H01J37/28 , G01Q20/02 , G01Q20/04 , G01Q30/02 , G01R31/28 , G01R31/305 , H01J37/10 , H01J37/147 , H01J37/244 , H01J37/26 , H01J49/06 , H01J49/44 , H01J49/48 , H01J37/05
CPC classification number: H01J49/06 , G01R31/305 , H01J37/1474 , H01J37/268 , H01J49/488
Abstract: A spectrometer objective is composed of a short focal length, asymmetrical objective lens comprising an integrated electrostatic opposing field spectrometer and a single-stage deflection system arranged within the magnetic lens. Since the deflection of primary electrons occurs within the spectrometer objective, the space for a two-state deflection system employed in conventional systems between a condenser lens and an objective lens can be eliminated. The extremely-short structural length of the electron beam measuring apparatus which is thereby obtainable, in turn, has a beneficial effect on the influence of the lateral Boersch effect on probe diameter, this influence increasing with the length of the electron-optical beam path.
Abstract translation: 光谱仪物镜由包括集成静电相对场光谱仪的短焦距不对称物镜和布置在磁透镜内的单级偏转系统组成。 由于一次电子的偏转发生在光谱仪物镜内，因此可以消除在聚光透镜和物镜之间的常规系统中采用的两状态偏转系统的空间。 由此可以获得电子束测量装置的极短的结构长度，对横向Boersch效应对探针直径的影响具有有益的影响，这种影响随着电子束光路的长度而增加。
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Patent Agency Ranking
公开(公告)号：US4546254A
公开(公告)日：1985-10-08
申请号：US478348
申请日：1983-03-24
Applicant: Hiroshi Yamauchi
Inventor： Hiroshi Yamauchi
IPC: G01N23/22 , G01Q30/02 , G01Q30/04 , H01J37/252 , H01J49/48
CPC classification number: G01N23/22 , H01J37/252 , H01J49/488 , G01N2223/0816 , G01N2223/085 , G01N2223/313
Abstract: A charged particle energy analyzer comprises a source for generating radiation to be incident on a sample so as to emit charged particles from the sample, a low energy pass reflection filter for selectively reflecting the charged particles having energy lower than a first value, a high energy pass transmission filter for selectively transmitting the charged particles having energy higher than a second value. The low energy pass reflecting filter comprises a reflector and a first grid. The reflector is a spheroid mirror having two complex focuses, disposed in a symmetrical manner, at which the sample and a detector are disposed. The detector detects the selected charged particles.
Abstract translation: 带电粒子能量分析器包括用于产生入射到样品上的辐射源以从样品中发射带电粒子的源，用于选择性地反射具有低于第一值的能量的带电粒子的低能量反射滤光器，高能量 通过透射滤光器，用于选择性地透射具有高于第二值的能量的带电粒子。 低能量反射滤光器包括反射器和第一格栅。 反射器是具有两个复杂焦点的球体镜，以对称的方式设置，样品和检测器设置在该对焦方向。 检测器检测所选的带电粒子。
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公开(公告)号：US3935454A
公开(公告)日：1976-01-27
申请号：US484251
申请日：1974-06-28
Applicant: Jerald Dana Lee
Inventor： Jerald Dana Lee
CPC classification number: H01J49/488
Abstract: An electron spectrometer including a high pass filter, an electron multiplier and a reflection chamber is improved by placing a planar grid in the reflection chamber between the high pass filter and the electron multiplier.
Abstract translation: 通过在高通滤波器和电子倍增器之间的反射室中放置平面栅格来提高包括高通滤波器，电子倍增器和反射室的电子能谱仪。
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公开(公告)号：US3836775A
公开(公告)日：1974-09-17
申请号：US33954473
申请日：1973-03-08
Applicant: PRINCETON APPLIED RES CORP
Inventor： RIDGWAY S
CPC classification number: H01J49/147 , H01J49/488
Abstract: Process of and apparatus for measuring the energy loss of electrons in collisions with gaseous material, e.g., gaseous sample atoms and molecules for the purpose of characterizing (identifying, discriminating between or determining the molecular structure of) the atoms or molecules by the electron energy loss spectrum are provided. A current of low energy electrons is introduced into a region defined by being enclosed in a fine wire grid. The sample atoms or molecules are also in this region. The sample may or may not be diluted with helium gas. Electrons that have collided with the sample or with helium attempt to diffuse from this region out toward a collector electrode whose potential may be varied during the course of obtaining a spectrum. In general, if the kinetic energy of an electron is sufficient for it to surmount the potential hill (in the gravitational plot sense) or electrostatic potential between the collector and the grid, it will eventually be absorbed by the collector, since the area of the collector is purposely made enormously greater than that of the grid. If the kinetic energy of the electron is insufficient to reach the collector, i.e., is insufficient to surmount the potential hill or electrostatic potential between the potential of the grid and the potential of the collector, the electron is eventually absorbed on the grid. Thus the current to the grid is made up of those electrons that have lost sufficient kinetic energy in collisions with the sample a atoms or molecules that they cannot surmount the electrostatic potential between the grid and collector and reach the collector. The measure of this current as a function of the collector potential, e.g., the derivative of the current to the grid with respect to the collector potential, provides a spectrum of energy loss of the electrons particularly useful in characterizing, i.e., identifying, discriminating between, or determining the molecular structure, of the sample gaseous atoms or molecules.
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公开(公告)号：US3833851A
公开(公告)日：1974-09-03
申请号：US18956871
申请日：1971-10-15
Applicant: MOBIL OIL CORP
IPC: G01N23/225 , H01J49/48 , H05H1/00 , G01N27/00
CPC classification number: G01N23/225 , H01J49/488 , H05H1/0006
Abstract: An ion source generates a heavy-ion beam of uniform ion velocity which is utilized to probe plasmas. The beam is scanned through a plane by deflection plates and the angle of scansion for the beam is magnified by a linear field distribution lens. The ionizing collisions between the scanned beam and the plasma results in a step charge change for the ions. Detectors are provided which are responsive to the ions undergoing a step change in charge to measure electron density of the plasma, space potential of the plasma, and the momentum added by the plasma current.
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公开(公告)号：US3735128A
公开(公告)日：1973-05-22
申请号：US3735128D
申请日：1971-08-27
Applicant: PHYSICAL ELECTRONICS IND INC
Inventor： PALMBERG P
IPC: G01N23/227 , G01T1/36 , H01J49/44 , H01J49/48 , B01D59/44
CPC classification number: H01J49/482 , H01J49/488
Abstract: Field termination plates for cylindrical electron analyzers are provided wherein the plates are constructed of an insulative material coated on the interior surface with a high resistance, electrically conducting coating. Spaced concentric rings of relatively high conductivity material in electrical contact with said coating are provided; the rings providing equi-potential regions on the plates, thereby minimizing field fringing near the ends of the cylindrical tube electron analyzer.
Abstract translation: 提供用于圆柱形电子分析仪的场终端板，其中板由涂覆在内表面上的具有高电阻导电涂层的绝缘材料构成。 提供了与所述涂层电接触的相对高导电性材料的间隔同心环; 这些环在板上提供等电位区域，从而最小化圆柱形管电子分析仪端部附近的场边缘。
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