公开(公告)号：US20090079980A1

公开(公告)日：2009-03-26

申请号：US12036045

申请日：2008-02-22

申请人： John E. Goulter ,  Mark Hamilton ,  Pratheev Sreetharan

发明人： John E. Goulter ,  Mark Hamilton ,  Pratheev Sreetharan

IPC分类号： G01J3/28 ,  G02B7/02

CPC分类号： G01J3/12 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0256 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/0297 ,  G01J3/2803 ,  G01J3/36 ,  G01J3/443 ,  G01N21/33 ,  G01N21/67 ,  G01N21/718 ,  G01N2201/0221

摘要： A spectrometer includes a structural member made of a light-weight material having a small coefficient of thermal expansion (CTE). The spectrometer is dimensionally stable over a range of expected ambient temperatures, without controlling the temperature of the spectrometer.

摘要翻译： 光谱仪包括由具有小的热膨胀系数（CTE）的轻质材料制成的结构件。 光谱仪在一定范围的预期环境温度下尺寸稳定，而不需要控制光谱仪的温度。

公开(公告)号：US20090050786A1

公开(公告)日：2009-02-26

申请号：US12035477

申请日：2008-02-22

申请人： Denis Baiko ,  Suraj Bhaskaran ,  Judd Jenne ,  Mark Hamilton ,  George Lungu ,  Bruce Pirger ,  John Swab ,  Steven VanGorden ,  Herbert Ziegler ,  Michael Pilon

发明人： Denis Baiko ,  Suraj Bhaskaran ,  Judd Jenne ,  Mark Hamilton ,  George Lungu ,  Bruce Pirger ,  John Swab ,  Steven VanGorden ,  Herbert Ziegler ,  Michael Pilon

IPC分类号： H01J40/14 ,  G01J3/00

CPC分类号： G01J3/2803 ,  G01J3/02 ,  G01J3/0286 ,  H01L27/14862 ,  H04N5/2355 ,  H04N5/35572 ,  H04N5/3692 ,  H04N5/3743

摘要： Time-resolved analysis of a spectrum is performed by illuminating a one-dimensional array of charge-transfer device light-sensitive pixel cells and periodically non-destructively copying charges in the light-sensitive cells to respective storage cells (“row storage registers”) co-located with the light-sensitive cells in an integrated circuit. Information about the charges stored in at least some of the storage cells is provided to a component external to the integrated circuit.

摘要翻译： 通过照射电荷转移装置光敏像素单元的一维阵列并在感光单元中周期性地非破坏性地复制电荷到各个存储单元（“行存储寄存器”）来执行频谱的时间分辨分析， 与集成电路中的感光单元共处。 关于存储在至少一些存储单元中的电荷的信息被提供给集成电路外部的组件。

公开(公告)号：US20080212074A1

公开(公告)日：2008-09-04

申请号：US12036039

申请日：2008-02-22

申请人： John E. Goulter ,  Mark Hamilton ,  Pratheev Sreetharan

发明人： John E. Goulter ,  Mark Hamilton ,  Pratheev Sreetharan

IPC分类号： G01J3/00 ,  G01N21/00 ,  G01J3/443

CPC分类号： G01J3/12 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0256 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/0297 ,  G01J3/2803 ,  G01J3/36 ,  G01J3/443 ,  G01N21/33 ,  G01N21/67 ,  G01N21/718 ,  G01N2201/0221

摘要： A hand-held, self-contained, battery-powered test instrument for analyzing composition of a sample includes an exciter for exciting at least a portion of the sample, a compact cross-dispersed spectrometer for receiving an optical signal from the excited portion of the sample and a processor for processing spectral data about the optical signal from the spectrometer. The exciter may include a spark generator and a counter electrode, a laser or other device for generating the optical signal from the sample portion. The spectrometer has a wavelength range broad enough to enable the test instrument to detect and determine relative quantities of carbon, phosphorous, sulfur, manganese, silicon, iron and other elements necessary to identify common alloys. The spectrometer includes a structural member made of a light-weight material having a small coefficient of thermal expansion (CTE). The spectrometer is dimensionally stable over a range of expected ambient temperatures, without controlling the temperature of the spectrometer.

摘要翻译： 用于分析样品组成的手持式独立的，电池供电的测试仪器包括用于激发至少一部分样品的激发器，用于从所述样品的激发部分接收光信号的紧凑型交叉分散光谱仪 样品和用于处理来自光谱仪的光信号的光谱数据的处理器。 励磁机可以包括火花发生器和对电极，用于从样品部分产生光信号的激光器或其它装置。 光谱仪具有足够宽的波长范围，使得测试仪器可以检测和确定识别普通合金所需的碳，磷，硫，锰，硅，铁和其他元素的相对数量。 光谱仪包括由具有小的热膨胀系数（CTE）的轻质材料制成的结构件。 光谱仪在一定范围的预期环境温度下尺寸稳定，而不需要控制光谱仪的温度。

公开(公告)号：US08515009B1

公开(公告)日：2013-08-20

申请号：US13627392

申请日：2012-09-26

申请人： Thermo Niton Analyzers LLC

发明人： Stanislaw Piorek ,  Stephen I. Shefsky ,  Michael E. Dugas

IPC分类号： G01N23/223

CPC分类号： G01N23/223 ,  G01B15/02 ,  G01N2223/076 ,  G01N2223/633

摘要： Techniques disclosed herein include systems and methods for identifying counterfeit gold jewelry and other counterfeit gold items. Techniques include determining—using a non-destructive mechanism—whether an item of interest (such as an article represented as true gold) is solid gold or a gold-plated object. Techniques include using an X-ray fluorescence (XRF) analyzer to differentiate true gold from gold plating. The XRF analyzer can distinguish between gold plating and bulk gold material by comparing a ratio of L-alpha and L-beta x-ray lines of gold. The analyzer measures a ratio of intensities of characteristic L-lines of gold using X-ray fluorescence (XRF) spectroscopy. When implemented using an XRF analyzer, the system nondestructively determines whether a test object is made of solid gold/gold alloy or has gold plating only.

摘要翻译： 本文公开的技术包括用于识别假冒黄金首饰和其他假冒黄金物品的系统和方法。 技术包括确定使用非破坏性机制 - 无论是感兴趣的项目（例如表示为真金的物品）是实心金还是镀金物体。 技术包括使用X射线荧光（XRF）分析仪来区分真金和镀金。 XRF分析仪可以通过比较黄金的L-α和L-βx射线的比例来区分镀金和块体金材料。 分析仪使用X射线荧光（XRF）光谱测量金的特征L线的强度比。 当使用XRF分析仪实现时，系统非破坏性地确定测试对象是由固体金/金合金制成还是仅具有镀金。

公开(公告)号：US08184287B2

公开(公告)日：2012-05-22

申请号：US12547317

申请日：2009-08-25

申请人： Mark A. Hamilton ,  John E. Goulter

发明人： Mark A. Hamilton ,  John E. Goulter

IPC分类号： G01N21/67 ,  G01N21/63

CPC分类号： G01J3/443 ,  G01J3/02 ,  G01J3/021 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0286 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/18

摘要： An optical emission spectroscopic system contains multiple distinct light paths that provide increased light to a spectrometer, thereby increasing sensitivity and signal-to-noise of the system.

摘要翻译： 光发射光谱系统包含多个不同的光路，其向光谱仪提供增加的光，从而增加系统的灵敏度和信号对噪声。

公开(公告)号：US07821634B2

公开(公告)日：2010-10-26

申请号：US12106233

申请日：2008-04-18

申请人： Robert Dillon ,  Lee Grodzins ,  Stephanie Melikian

发明人： Robert Dillon ,  Lee Grodzins ,  Stephanie Melikian

IPC分类号： G01J3/30

CPC分类号： G01J3/443 ,  G01J3/02 ,  G01J3/0272 ,  G01N21/67 ,  G01N21/718

摘要： Multiple energy sources, such as a laser and electrical current, are employed, in close coordination, spatially and temporally, to clean a sample, vaporize its material and excite vapor atoms for the purpose of atomic emission spectroscopy. These methods permit better monitoring and control of the individual processes in real time, lead to higher consistency and higher quality optical emission spectra, and enhance the measurements of non-conducting solids, liquids and gases. Additionally, a portable instrument is provided with both laser source and spectrometer optically coupled to a hand-holdable unit.

摘要翻译： 在诸如激光和电流之间的多个能源，在空间和时间上紧密协调地被采用以清洁样品，汽化其材料并激发蒸气原子以用于原子发射光谱。 这些方法允许实时更好地监测和控制各个过程，从而提高一致性和更高质量的光发射光谱，并增强非导电固体，液体和气体的测量。 此外，便携式仪器具有与手持式单元光学耦合的激光源和光谱仪。

公开(公告)号：US07623614B2

公开(公告)日：2009-11-24

申请号：US11923532

申请日：2007-10-24

申请人： Stephen I. Shefsky

发明人： Stephen I. Shefsky

IPC分类号： G01N23/201 ,  G01N23/203

CPC分类号： G01N23/02 ,  G01N23/203 ,  G01N2223/045 ,  G01N2223/314 ,  G01T1/295

摘要： An apparatus for inspecting objects utilizes a fan beam or flood beam to illuminate the inspected region of the object. A modulator, which may take the form of a movable mask, dynamically encodes the beam so that each segment of the inspected region receives varying amounts of radiation according to a predetermined temporal sequence. The resultant signal produced by a backscatter detector or optional transmission detector receiving radiation from the object is decoded to recover spatial information so that an image of the inspected region may be constructed.

摘要翻译： 用于检查物体的装置利用扇形束或泛光束照射物体的被检查区域。 可以采取可移动掩模形式的调制器动态地对波束进行编码，使得被检查区域的每个段根据预定的时间顺序接收不同数量的辐射。 解码由反向散射检测器或可选的传输检测器产生的由该物体接收辐射的信号，以恢复空间信息，从而构建被检测区域的图像。

公开(公告)号：US07375359B1

公开(公告)日：2008-05-20

申请号：US11440570

申请日：2006-05-25

申请人： Lee Grodzins

发明人： Lee Grodzins

IPC分类号： G01N23/223

CPC分类号： G01N23/223 ,  G01N2223/076

摘要： An instrument and method for measuring the elemental composition of a test material. The instrument has a source of penetrating radiation for irradiating an irradiated region of the test material, a detector for detecting fluorescence emission by the test material and for generating a detector signal, and a controller for converting the detector signal into a spectrum characterizing the composition of the test material. A platen of attenuating material extends outward from adjacent to, and surrounding, the irradiated surface of the test material. In certain embodiments, the thickness of the attenuating platen is tapered with increasing radial distance from the central irradiated region of the test material.

摘要翻译： 用于测量测试材料的元素组成的仪器和方法。 仪器具有用于照射测试材料的照射区域的穿透辐射源，用于检测测试材料的荧光发射和产生检测器信号的检测器，以及用于将检测器信号转换成表征组成的光谱的控制器 测试材料。 衰减材料的压板从测试材料的照射表面的相邻并且围绕其向外延伸。 在某些实施例中，衰减台板的厚度随着与测试材料的中心照射区域的径向距离的增加而逐渐变细。

公开(公告)号：US07899153B2

公开(公告)日：2011-03-01

申请号：US12426022

申请日：2009-04-17

申请人： Michael E. Dugas ,  Lee Grodzins ,  Stephen I. Shefsky

发明人： Michael E. Dugas ,  Lee Grodzins ,  Stephen I. Shefsky

IPC分类号： G01N23/223

CPC分类号： G01N23/223 ,  G01N2223/076

摘要： A method for classifying a sample based upon a complete spectral analysis. The sample is illuminated with penetrating radiation and an initial complete spectral analysis is performed based on spectral resolution of resonant fluorescence lines emitted at the surface, or within the volume, of the sample. If the initial complete spectral analysis yields the composition of the sample to within acceptable limits, analysis values are output to the user. Otherwise, further analysis, informed by the results if the initial complete spectral analysis, is performed.

摘要翻译： 一种基于完整光谱分析对样品进行分类的方法。 样品用穿透辐射照射，并且基于在样品表面或体积内发射的共振荧光线的光谱分辨率进行初始完全光谱分析。 如果初始完整的光谱分析产生样品的组成在可接受的限度内，则将分析值输出给用户。 否则，进行进一步分析，通过结果通知是否进行初始完整光谱分析。

公开(公告)号：US07787589B2

公开(公告)日：2010-08-31

申请号：US12433569

申请日：2009-04-30

申请人： Lee Grodzins

发明人： Lee Grodzins

IPC分类号： G01N23/223

CPC分类号： A61B6/583 ,  A61B6/482 ,  A61B6/485 ,  A61B6/505 ,  G01N2223/076 ,  G01N2223/6123

摘要： Methods for in vivo measurement of lead or other trace elements in bone by x-ray fluorescence (XRF) without independent measurement of underlying tissue thickness are disclosed. In one method, the lead concentration is calculated based on the intensity of a first characteristic fluoresced peak and a function having as an argument the intensity ratio of first and second characteristic fluoresced peaks, with at least one parameter of the function being empirically determined by measurements of calibration phantoms having differing thicknesses of tissue surrogate material. In another method, the lead concentration is measured by estimating tissue thickness based on the intensity of the Compton scattering peak, or ratio of Compton/Rayleigh intensities, and the intensity of a characteristic fluoresced x-ray peak corrected for attenuation by tissue of the estimated thickness. Also disclosed is a method for determining the calcium concentration and density of bone based on XRF spectrum data.

摘要翻译： 公开了通过x射线荧光（XRF）体内测量骨中的铅或其他微量元素而不独立测量下面的组织厚度的方法。 在一种方法中，基于第一特征荧光峰的强度和作为第一和第二特征荧光峰的强度比作为参数的函数来计算铅浓度，其中该函数的至少一个参数由经度由测量 的校准体模具有不同厚度的组织替代材料。 在另一种方法中，通过基于康普顿散射峰的强度或康普顿/瑞利强度的比例估计组织厚度，以及通过组织校正的特征荧光x射线峰值的强度来测量铅浓度。 厚度。 还公开了基于XRF光谱数据确定骨的钙浓度和密度的方法。