Slit disk for modified faraday cup diagnostic for determining power density of electron and ion beams
    21.
    发明授权
    Slit disk for modified faraday cup diagnostic for determining power density of electron and ion beams 有权
    用于确定电子和离子束功率密度的修改法拉第杯诊断用狭缝盘

    公开(公告)号:US07902503B2

    公开(公告)日:2011-03-08

    申请号:US12188398

    申请日:2008-08-08

    CPC classification number: H01J37/244 H01J2237/24405

    Abstract: A diagnostic system for characterization of an electron beam or an ion beam includes an electrical conducting disk of refractory material having a circumference, a center, and a Faraday cup assembly positioned to receive the electron beam or ion beam. At least one slit in the disk provides diagnostic characterization of the electron beam or ion beam. The at least one slit is located between the circumference and the center of the disk and includes a radial portion that is in radial alignment with the center and a portion that deviates from radial alignment with the center. The electron beam or ion beam is directed onto the disk and translated to the at least one slit wherein the electron beam or ion beam enters the at least one slit for providing diagnostic characterization of the electron beam or ion beam.

    Abstract translation: 用于表征电子束或离子束的诊断系统包括耐火材料的导电盘,其具有圆周,中心和法拉第杯组件,其定位成接收电子束或离子束。 盘中的至少一个狭缝提供电子束或离子束的诊断特征。 所述至少一个狭缝位于圆盘的圆周和中心之间,并包括与中心径向对准的径向部分和偏离与中心的径向对准的部分。 电子束或离子束被引导到盘上并平移到至少一个狭缝,其中电子束或离子束进入至少一个狭缝,用于提供电子束或离子束的诊断特性。

    X-ray photoelectron spectroscopy analysis system for surface analysis and method therefor
    22.
    发明授权
    X-ray photoelectron spectroscopy analysis system for surface analysis and method therefor 有权
    用于表面分析的X射线光电子能谱分析系统及其方法

    公开(公告)号:US07875857B2

    公开(公告)日:2011-01-25

    申请号:US11866489

    申请日:2007-10-03

    CPC classification number: G01N23/223 G01N23/2273 G01N2223/076

    Abstract: An X-ray photoelectron spectroscopy analysis system for analysing an insulating sample 20, and a method of XPS analysis. The system comprises an X-ray generating means 30 having an exit opening 32 and being arranged to generate primary X-rays 46,56 which pass out of the exit opening in a sample direction towards a sample surface 22 for irradiation thereof. It has been found that the X-ray generating means in use additionally generates unwanted electrons 258 which may pass out of the exit opening substantially in the sample direction and cause undesirable sample charging effects. The system further comprises an electron deflection field generating means 380,480,580 arranged to generate a deflection field upstream of the sample surface. The deflection field is configured to deflect the unwanted electrons away from the sample direction, such that the unwanted electrons are prevented from reaching the sample surface.

    Abstract translation: 用于分析绝缘样品20的X射线光电子能谱分析系统和XPS分析方法。 该系统包括具有出口开口32的X射线产生装置30,并被布置成产生主要X射线46,56,其在取样方向上从出口开口向样品表面22射出,用于照射。 已经发现,使用的X射线产生装置另外产生不想要的电子258,其可以基本上沿着样品方向从出口开口流出,并引起不期望的样品充电效应。 该系统还包括电子偏转场产生装置380,480,580,其被设置为在样本表面上游产生偏转场。 偏转场被配置为使不需要的电子偏离样品方向,使得不需要的电子被阻止到达样品表面。

    PLASMA PANEL BASED RADIATION DETECTOR
    24.
    发明申请
    PLASMA PANEL BASED RADIATION DETECTOR 有权
    基于等离子体面板的辐射探测器

    公开(公告)号:US20100155616A1

    公开(公告)日:2010-06-24

    申请号:US12706871

    申请日:2010-02-17

    CPC classification number: G01T1/18 G01J1/42 G01T1/185

    Abstract: A radiation counting detector includes a first substrate and a second substrate that is generally parallel to first substrate and forms a gap with the first substrate. A gas is contained within the gap. A photocathode layer is coupled to one side of the first substrate and faces the second substrate. A first electrode is coupled to the second substrate and a second electrode is electrically coupled to the first electrode. A first impedance is coupled to the first electrode and a second impedance is coupled to the second electrode. A power supply is coupled to at least one of the electrodes. A first discharge event detector is coupled to the first impedance and a second discharge event detector is coupled to the second impedance. The radiation counting detector further includes a plurality of pixels, each capable of outputting a gas discharge pulse upon interaction with radiation received from the photocathode. Each gas discharge pulse is counted as having an approximately equal value. The radiation counting detector further includes circuitry for detecting if a gas discharge pulse is output from the pixels, and for counting each gas discharge pulse as an individual event.

    Abstract translation: 辐射计数检测器包括第一基板和第二基板,该基板大致平行于第一基板并与第一基板形成间隙。 气体被包含在间隙内。 光电阴极层耦合到第一衬底的一侧并面向第二衬底。 第一电极耦合到第二衬底,并且第二电极电耦合到第一电极。 第一阻抗耦合到第一电极,第二阻抗耦合到第二电极。 电源耦合到至少一个电极。 第一放电事件检测器耦合到第一阻抗,第二放电事件检测器耦合到第二阻抗。 辐射计数检测器还包括多个像素,每个像素能够在与从光电阴极接收的辐射相互作用时输出气体放电脉冲。 每个气体放电脉冲被计数为具有近似相等的值。 辐射计数检测器还包括用于检测气体放电脉冲是否从像素输出的电路,并且用于将每个气体放电脉冲作为个别事件进行计数。

    Device and Method For Online Quality Assurance In Hadron Therapy
    25.
    发明申请
    Device and Method For Online Quality Assurance In Hadron Therapy 有权
    Hadron治疗中在线质量保证的设备和方法

    公开(公告)号:US20100108901A1

    公开(公告)日:2010-05-06

    申请号:US12594156

    申请日:2008-03-29

    CPC classification number: H01J47/02 A61N5/1075 A61N2005/1076 A61N2005/1087

    Abstract: A device and method for on line dosimetry monitoring of a hadron beam generated from a source of radiation and delivered to a target, the device comprising a plurality of support plates arranged in parallel in a face-to-face relation, separated from each other by gas filled gaps and perpendicularly to the central axis of said hadron beam, and forming a plurality of ionization chambers, each support plate having on a first side one or more collecting electrodes and on a second side one or more high voltage electrode, arranged in such a way that each support plate has said first side substantially opposed to said second side of another support plate. Each support plate has an opening so as to form an inner cavity for allowing the undisturbed passage of a central portion of the hadron beam delivered to said target and a peripheral region for intercepting and measuring, by means of said plurality of ionization chambers, a peripheral portion of said hadron beam.

    Abstract translation: 一种用于在线辐射源产生的强子束的线上剂量测量监测装置和方法,该装置和方法被输送到目标物,所述装置包括以面对面关系平行排列的多个支撑板, 气体填充的间隙并且垂直于所述强子束的中心轴线,并且形成多个电离室,每个支撑板在第一侧上具有一个或多个集电极,并且在第二侧上具有一个或多个高压电极 每个支撑板具有基本上与另一个支撑板的所述第二侧相对的第一侧的方式。 每个支撑板具有开口以形成内腔,用于允许输送到所述靶的强子束的中心部分的不受干扰的通道和用于通过所述多个电离室截取和测量周边区域的周边 所述强子束的一部分。

    Slit Disk for Modified Faraday Cup Diagnostic for Determing Power Density of Electron and Ion Beams
    26.
    发明申请
    Slit Disk for Modified Faraday Cup Diagnostic for Determing Power Density of Electron and Ion Beams 有权
    用于确定电子和离子束功率密度的修正法拉第杯诊断用狭缝盘

    公开(公告)号:US20100032562A1

    公开(公告)日:2010-02-11

    申请号:US12188398

    申请日:2008-08-08

    CPC classification number: H01J37/244 H01J2237/24405

    Abstract: A diagnostic system for characterization of an electron beam or an ion beam includes an electrical conducting disk of refractory material having a circumference, a center, and a Faraday cup assembly positioned to receive the electron beam or ion beam. At least one slit in the disk provides diagnostic characterization of the electron beam or ion beam. The at least one slit is located between the circumference and the center of the disk and includes a radial portion that is in radial alignment with the center and a portion that deviates from radial alignment with the center. The electron beam or ion beam is directed onto the disk and translated to the at least one slit wherein the electron beam or ion beam enters the at least one slit for providing diagnostic characterization of the electron beam or ion beam.

    Abstract translation: 用于表征电子束或离子束的诊断系统包括耐火材料的导电盘,其具有圆周,中心和法拉第杯组件,其定位成接收电子束或离子束。 盘中的至少一个狭缝提供电子束或离子束的诊断特征。 所述至少一个狭缝位于圆盘的圆周和中心之间,并包括与中心径向对准的径向部分和偏离与中心的径向对准的部分。 电子束或离子束被引导到盘上并平移到至少一个狭缝,其中电子束或离子束进入至少一个狭缝,用于提供电子束或离子束的诊断特性。

    Method And Apparatus For Detecting X-Rays Having Improved Noise Discrimination
    27.
    发明申请
    Method And Apparatus For Detecting X-Rays Having Improved Noise Discrimination 有权
    用于检测具有改进的噪声鉴别的X射线的方法和装置

    公开(公告)号:US20090173881A1

    公开(公告)日:2009-07-09

    申请号:US11970255

    申请日:2008-01-07

    Inventor: John L. Adamski

    CPC classification number: H01J35/08 H01J2235/08

    Abstract: A method and apparatus, such as a spectrometer, are provided for facilitating the detection of an x-ray signal in a manner that effectively discriminates the x-ray signal from noise. A spectrometer may be provided which includes an x-ray converter for converting x-ray signals which impinge thereupon into corresponding pairs of electrons and positrons. The spectrometer also includes a deflector for separately deflecting the electrons and the positrons as well as electron and positron detectors for separately detecting the deflected electrons and positrons, respectively. As such, an x-ray signal can be identified in instances in which the deflected electrons and positrons are detected in coincidence.

    Abstract translation: 提供了一种方法和装置,例如光谱仪,用于有助于以有效地区分X射线信号与噪声的方式检测X射线信号。 可以提供一种光谱仪,其包括用于将X射线信号转换成相应的电子和正电子对的x射线转换器。 光谱仪还包括用于分别偏转电子和正电子的偏转器以及用于分别检测偏转的电子和正电子的电子和正电子检测器。 因此,可以在重合检测偏转的电子和正电子的情况下识别x射线信号。

    Method for trapping uncharged multi-pole particles
    28.
    发明授权
    Method for trapping uncharged multi-pole particles 有权
    用于捕集未充电的多极粒子的方法

    公开(公告)号:US07521674B2

    公开(公告)日:2009-04-21

    申请号:US11897747

    申请日:2007-09-01

    Applicant: Stanley Pau

    Inventor: Stanley Pau

    CPC classification number: H01J49/424

    Abstract: Apparatus and method for trapping uncharged multi-pole particles comprises a bound cavity for receiving the particles, and a multiplicity of electrodes coupled to the cavity for producing an electric field in the cavity. In a preferred embodiment, the electrodes are configured to produce in the electric field potential both a multi-pole (e.g., dipole) component that aligns the particles predominantly along an axis of the cavity and a higher order multi-pole (e.g., hexapole) component that forms a trapping region along the axis. In one embodiment, the electrodes and/or the particles are cooled to a cryogenic temperature.

    Abstract translation: 用于捕集未充电的多极粒子的装置和方法包括用于接收颗粒的结合腔和耦合到空腔的多个电极,用于在空腔中产生电场。 在优选实施例中,电极被配置为在电场电位中产生多个(例如,偶极子)成分,该多极(例如,偶极子)成分主要沿着空腔的轴线对齐并且高阶多极(例如,六极) 该部件沿轴线形成捕获区域。 在一个实施例中,将电极和/或颗粒冷却至低温。

    Plasma panel based ionizing radiation detector
    29.
    发明授权
    Plasma panel based ionizing radiation detector 有权
    基于等离子体面板的电离辐射探测器

    公开(公告)号:US07518119B2

    公开(公告)日:2009-04-14

    申请号:US11928311

    申请日:2007-10-30

    CPC classification number: G01T1/2935 C22C19/05 G01T1/18 G01T1/28

    Abstract: A radiation detector is formed from a plasma panel that includes a front substrate, and a back substrate that forms a generally parallel gap with the front substrate. X (column) and Y (row) electrodes are coupled by gas discharge events to define one or more pixels. Impedances are coupled to the X and Y electrodes, and a power supply is coupled to one or both types of electrodes. Discharge event detectors are coupled to the impedances.

    Abstract translation: 辐射检测器由等离子体面板形成,该等离子体面板包括前基板和与前基板形成大致平行的间隙的后基板。 X(列)和Y(行)电极通过气体放电事件耦合以限定一个或多个像素。 阻抗耦合到X和Y电极,并且电源耦合到一种或两种类型的电极。 放电事件检测器耦合到阻抗。

    Charged particle spectrometer and detector therefor
    30.
    发明授权
    Charged particle spectrometer and detector therefor 有权
    带电粒子光谱仪及其检测器

    公开(公告)号:US07470901B2

    公开(公告)日:2008-12-30

    申请号:US10533570

    申请日:2003-11-04

    CPC classification number: H01J49/48

    Abstract: A charged particle (e.g. photoelectron) spectrometer is operable in a first mode to produce an energy spectrum relating to the composition of a sample being analysed, and in a second mode to produce a charged particle image of the surface of the sample being analysed. A detector is used to detect charged particles produced in both modes of operation. A method of operation of the spectrometer includes the step of selecting which of said first and second modes to use and the detector being operated accordingly.

    Abstract translation: 带电粒子(例如光电子)光谱仪可在第一模式下操作以产生与所分析的样品的组成相关的能谱,并且在第二模式中产生被分析的样品的表面的带电粒子图像。 检测器用于检测在两种操作模式下产生的带电粒子。 光谱仪的操作方法包括以下步骤:选择要使用的所述第一和第二模式中的哪一种,并且相应地操作检测器。

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