公开(公告)号：US06393085B1

公开(公告)日：2002-05-21

申请号：US09173924

申请日：1998-10-16

申请人： Wolfgang Heller ,  Boris Grigorjewitsch Titov ,  Gerd Arnold

发明人： Wolfgang Heller ,  Boris Grigorjewitsch Titov ,  Gerd Arnold

IPC分类号： G21G106

CPC分类号： G01N23/025

摘要： The invention relates to an analyzer for the identification of explosives and/or chemical warfare agents, with a neutron source which causes the emission of characteristic &ggr; quanta, whereby the analysis system consists of a mobile frame to which a neutron source and a detector as well as a holder for the object are attached, with a neutron generator which contains deuterium as the target, generates neutron pulses by periodically repeated, pulsed bombardment of the target and is controlled so that short neutron pulses are emitted and repeated periodically, whereby the detector is controlled so that in cycles it detects &ggr; quanta promptly emitted from the object due to inelastic neutron scattering and neutron capture, within at least two consecutive temporal measurement windows, whereby the first measurement window at least partially overlaps temporally the neutron pulse and the subsequent second measurement window does not, whereby in the first measurement window &ggr; quanta are essentially detected due to inelastic neutron scattering and in the second measurement window they are detected due to neutron capture.

摘要翻译： 本发明涉及一种用于识别爆炸物和/或化学战剂的分析仪，其具有引起特征伽玛量子点的中子源，由此分析系统由可移动的框架组成，中子源和检测器 作为对象的保持器，附有包含氘作为目标的中子发生器，通过周期性重复的靶的脉冲轰击产生中子脉冲，并且被控制以使得短的中子脉冲被周期性地发射和重复，由此检测器是 被控制使得在周期内，它在至少两个连续的时间测量窗口内检测由于非弹性中子散射和中子捕获而从物体迅速发射的伽马量子，由此第一测量窗口在时间上至少部分地与中子脉冲和随后的第二测量重叠 窗口不在，其中在第一测量窗口中的gamma量子是 由于非弹性中子散射基本上被检测到，并且在第二测量窗口中，它们由于中子捕获而被检测。

公开(公告)号：US06751280B2

公开(公告)日：2004-06-15

申请号：US10217088

申请日：2002-08-12

申请人： Saed Mirzadeh ,  Miting Du ,  Arnold L. Beets ,  Furn F. Knapp, Jr.

发明人： Saed Mirzadeh ,  Miting Du ,  Arnold L. Beets ,  Furn F. Knapp, Jr.

IPC分类号： G21G106

CPC分类号： G21G1/02 ,  G21G1/06

摘要： A method of preparing high-specific-activity 195mPt includes the steps of: exposing 193Ir to a flux of neutrons sufficient to convert a portion of the 193Ir to 195mPt to form an irradiated material; dissolving the irradiated material to form an intermediate solution comprising Ir and Pt; and separating the Pt from the Ir by cation exchange chromatography to produce 195mPt.

摘要翻译： 制备高比活性<195m> Pt的方法包括以下步骤：将193将Ir暴露于足以将一部分<193> Ir转化成<195m> Pt的中子，以形成辐射材料; 溶解被照射的材料以形成包含Ir和Pt的中间溶液; 并通过阳离子交换层析从Pt中分离出Pt以产生<195m> Pt。

公开(公告)号：US06415009B1

公开(公告)日：2002-07-02

申请号：US09351842

申请日：1999-07-13

申请人： Youri Genadievich Toporov ,  Vyacheslav Terentyevich Filimonov ,  Vladimir S Shokurov

发明人： Youri Genadievich Toporov ,  Vyacheslav Terentyevich Filimonov ,  Vladimir S Shokurov

IPC分类号： G21G106

CPC分类号： A61N5/1002 ,  A61N5/1001 ,  A61N2005/1025

摘要： The method comprises the steps of forming an elongated tubular metal casing 1. This elongated tubular metal casing 1 is then coiled. The coiled tubular casing 11 is filled with a material 9 capable to irradiate radioactive radiation. The material 9 is in liquid state with following crystallization in the coiled tubular casing 11. The filled coiled tubular casing 11 is then sealed at its ends 5.

摘要翻译： 该方法包括形成细长的管状金属壳体1的步骤。然后将该细长管状金属壳体1卷绕。 螺旋管状壳体11填充有能够照射放射性辐射的材料9。 材料9处于液体状态，随后在螺旋管状壳体11中结晶。填充的螺旋管状壳体11然后在其端部5被密封。

公开(公告)号：US06456680B1

公开(公告)日：2002-09-24

申请号：US09538333

申请日：2000-03-29

申请人： S. S. Abalin ,  Y. I. Vereschagin ,  G. Y. Grogoriev ,  V. A. Pavshook ,  N. N. Ponomarev-Stepnoi ,  V. E. Khvostionov ,  D. Yu. Chuvilin

发明人： S. S. Abalin ,  Y. I. Vereschagin ,  G. Y. Grogoriev ,  V. A. Pavshook ,  N. N. Ponomarev-Stepnoi ,  V. E. Khvostionov ,  D. Yu. Chuvilin

IPC分类号： G21G106

CPC分类号： G21C19/307 ,  G21G1/02 ,  G21Y2002/201 ,  G21Y2004/20 ,  G21Y2004/40

摘要： Inert gaseous fission products, including beryllium, rubidium, and krypton isotopes, resulting from the operation of a uranyl sulfate water solution nuclear reactor are passed through a delaying device to precipitate out strontium-90, then passed to a second delaying device to precipitate out the desired strontium-89.

公开(公告)号：US06438189B1

公开(公告)日：2002-08-20

申请号：US09273428

申请日：1999-03-19

申请人： George Vourvopoulos

发明人： George Vourvopoulos

IPC分类号： G21G106

CPC分类号： G01N23/204 ,  G01N23/09 ,  G01N23/222

摘要： An on-line material analyzer which utilizes pulsed neutron generation in order to determine the composition of material flowing through the apparatus. The on-line elemental material analyzer is based on a pulsed neutron generator. The elements in the material interact with the fast and thermal neutrons produced from the pulsed generator. Spectra of gamma-rays produced from fast neutrons interacting with elements of the material are analyzed and stored separately from spectra produced from thermal neutron reactions. Measurements of neutron activation takes place separately from the above reactions and at a distance from the neutron generator. A primary passageway allows the material to flow through at a constant rate of speed and operators to provide data corresponding to fast and thermal neutron reactions. A secondary passageway meters the material to allow for neutron activation analysis. The apparatus also has the capability to determine the density of the flowed material. Finally, the apparatus continually utilizes a neutron detector in order to normalize the yield of the gamma ray detectors and thereby automatically calibrates and adjusts the spectra data for fluctuations in neutron generation.

摘要翻译： 一种在线材料分析仪，其利用脉冲中子生成来确定流过该装置的材料的组成。 在线元素分析仪基于脉冲中子发生器。 材料中的元素与从脉冲发生器产生的快中子和热中子相互作用。 从与材料元素相互作用的快中子产生的γ射线的光谱与热中子反应产生的光谱分开存储。 中子活化的测量与上述反应分开发生，并与中子发生器有一定距离。 主通道允许材料以恒定的速度流过，并且操作者提供对应于快速和热中子反应的数据。 二次通道测量材料以允许中子活化分析。 该装置还具有确定流动材料的密度的能力。 最后，设备连续地利用中子检测器来归一化伽马射线检测器的产量，从而自动校准和调整中子产生波动的光谱数据。

公开(公告)号：US06292751B1

公开(公告)日：2001-09-18

申请号：US09500274

申请日：2000-02-08

申请人： Mark Frank

发明人： Mark Frank

IPC分类号： G21G106

CPC分类号： G01C21/16

摘要： A method is provided for correcting errors in position derived from an inertial measurement unit (IMU), by performing a first zero velocity update at a time when the IMU is at rest, recording the time and position of the IMU at a subsequent start of a period of interest after the first zero velocity update, recording the time and position of the IMU at the end of the period of interest, performing a second zero velocity update at the end of the period of interest with the IMU at rest, and then recording a velocity indicated from the IMU, and deriving an accumulated error in position from the recorded data, by approximating errors in velocity by a function of time with a parameter determined from the recorded indicated velocity, and integrating the function over the period of interest to determine the accumulated error in position during the period of interest.

摘要翻译： 提供一种用于通过在IMU处于静止时执行第一零速度更新来校正从惯性测量单元（IMU）导出的位置中的误差的方法，记录IMU的随后开始的时间和位置 在第一零速度更新之后的兴趣期间，在感兴趣期间结束时记录IMU的时间和位置，在IMU休息期间在感兴趣期间结束时执行第二零速度更新，然后记录 从IMU指示的速度，并且从记录的数据中导出位置的累积误差，通过利用从记录的指示速度确定的参数通过时间函数逼近速度误差，并且在感兴趣的时期内整合该函数以确定 在兴趣期间累计的位置错误。

公开(公告)号：US06804319B1

公开(公告)日：2004-10-12

申请号：US10718235

申请日：2003-11-20

申请人： Saed Mirzadeh ,  Miting Du ,  Arnold L. Beets ,  Furn F. Knapp, Jr.

发明人： Saed Mirzadeh ,  Miting Du ,  Arnold L. Beets ,  Furn F. Knapp, Jr.

IPC分类号： G21G106

CPC分类号： G21G1/02 ,  G21G1/06

摘要： A new composition of matter includes 195mPt characterized by a specific activity of at least 30 mCi/mg Pt, generally made by method that includes the steps of: exposing 193Ir to a flux of neutrons sufficient to convert a portion of the 193Ir to 195mPt to form an irradiated material; dissolving the irradiated material to form an intermediate solution comprising Ir and Pt; and separating the Pt from the Ir by cation exchange chromatography to produce 195mPt.

摘要翻译： 一种新的物质组合物包括特征在于具有至少30mCi / mg Pt的比活性的<195m> Pt，通常由方法制成，方法包括以下步骤：将193将Ir暴露于足以转化一部分 <193> Ir至<195m> Pt以形成辐射材料; 溶解被照射的材料以形成包含Ir和Pt的中间溶液; 并通过阳离子交换层析从Pt中分离出Pt以产生<195m> Pt。

公开(公告)号：US06678344B2

公开(公告)日：2004-01-13

申请号：US10077204

申请日：2002-02-16

申请人： Patrick O'Leary ,  Claude W. Mays

发明人： Patrick O'Leary ,  Claude W. Mays

IPC分类号： G21G106

CPC分类号： G21C3/326 ,  G21G1/02 ,  G21Y2004/60 ,  Y02E30/38

摘要： A method and apparatus for optimizing the production of Pu-238 in a nuclear reactor during normal reactor operation is disclosed wherein the production of Pu-238 is confined to one or more selectively replaced fuel cells with target cells located in the inside of the active volume of the reactor core to maximize the neutron flux for target irradiation. The target cells are modified existing nuclear fuel assembly cells having some fuel rods replaced with target rods of Np-237 forming a cluster array and having rings of water filled rods surrounding the target cluster to produce the desired optimal Pu-238 production.

摘要翻译： 公开了一种用于在正常反应堆操作期间优化核反应堆中Pu-238的生产的方法和装置，其中Pu-238的生产被限制在一个或多个选择性替换的燃料电池中，靶细胞位于活性体积的内部 的反应堆核心，以最大化目标照射的中子通量。 目标电池是现有的核燃料组装电池，其具有用Np-237的靶棒替代的一些燃料棒，形成簇阵列，并且具有围绕目标簇的水填充棒的环以产生所需的最佳Pu-238生产。

公开(公告)号：US06563898B1

公开(公告)日：2003-05-13

申请号：US09409334

申请日：1999-09-30

申请人： George Vourvopoulos ,  Sandor Sudar

发明人： George Vourvopoulos ,  Sandor Sudar

IPC分类号： G21G106

CPC分类号： G21K5/04

摘要： The present invention relates to a method and portable apparatus which is used to detect substances, such as explosives and drugs, by neutron irradiation. The apparatus has a portable neutron generating probe and corresponding controllers and data collection computers. The probe emits neutrons in order to interrogate an object. The probe also contains gamma ray detectors for the collection of gamma rays from fast neutron, thermal neutron and neutron activation reactions. Data collected from these detectors is sent to the computer for data de-convolution then object identification in order to determine whether the object being interrogated contains explosives or illicit contraband.

摘要翻译： 本发明涉及一种用于通过中子照射来检测爆炸物和药物等物质的方法和便携式装置。 该装置具有便携式中子产生探针和相应的控制器和数据采集计算机。 探针发射中子以询问物体。 该探头还包含伽马射线探测器，用于收集来自快中子，热中子和中子活化反应的伽马射线。 从这些检测器收集的数据被发送到计算机进行数据去卷积，然后被对象识别，以便确定被询问的对象是否包含爆炸物或非法违禁品。

公开(公告)号：US06222896B1

公开(公告)日：2001-04-24

申请号：US09151874

申请日：1998-09-11

申请人： Wei Jia ,  Gary J. Ehrhardt

发明人： Wei Jia ,  Gary J. Ehrhardt

IPC分类号： G21G106

CPC分类号： G21G1/06

摘要： Methods for the production of radionuclides suitable for use in radiopharmaceuticals for diagnostic and therapeutic applications, and specifically, to the production of 186Re, 188Re and other radionuclides such as 195mPt and 198Au using an inorganic Szilard-Chalmers reaction. Thin-film and powdered 185 or 187Reo metal targets, and 185 or 187Re oxide/metal oxide target compositions with rhenium in a lower, relatively reduced oxidation state are prepared. The thin-film rhenium targets are aged for at least about 24 hours and then irradiated with neutrons in the present of an oxidizing medium sufficient to form a product nuclide in the higher oxidized state of perrhenate, ReO4−. Significantly, the rate and/or extent of oxidation of target nuclides which do not react with a neutron is controlled. For example, oxidation of such non-bombarded target nuclides is minimized by irradiating under vacuum, controlling the amount of oxidizing agent present, cooling during irradiation, etc. The product nuclide is recovered by dissolving the perrhenate in a non-oxidizing solvent such as water or saline.

摘要翻译： 适用于放射性药物用于诊断和治疗应用的放射性核素的制备方法，特别是使用无机Szilard-Chalmers反应生产186Re，188Re和其它放射性核素例如195mPt和198Au。 制备薄膜和粉末状的185或187Reo金属靶，以及185或187Re氧化物/金属氧化物靶组合物，其中铼处于较低的相对减少的氧化态。 将薄膜铼靶材老化至少约24小时，然后在氧化剂介质中用中子照射，足以形成较高氧化态的高铼酸盐ReO4-的产物核素。 重要的是，控制不与中子反应的靶核素的氧化速度和/或程度。 例如，通过在真空下照射，控制存在的氧化剂的量，照射期间的冷却等来使这种未被轰击的靶核素的氧化被最小化。通过将高铼酸盐溶解在非氧化性溶剂如水中来回收产物核素 或盐水。