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公开(公告)号：US11119057B2
公开(公告)日：2021-09-14
申请号：US16653691
申请日：2019-10-15
发明人： James Reid McNab
摘要： A trip avoidance X-ray inspection system, typically defining a specialized system that delivers pulsed X-rays, comprises one or more pulse X-ray cameras, each comprising a known set of effects on nucleonic instrumentation; a predetermined set of such shielded X-ray sources; a predetermined set of nucleonic instrumentation operatively in communication with one or more pulse X-ray cameras; and a digital radiography detector adapted to allow, process, or otherwise create an X-ray produced image when disposed proximate predetermined set of nucleonic instrumentation. The pulse X-ray camera is adapted to be disposed at a predetermined distance from predetermined set of shielded X-ray sources.
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公开(公告)号：US11054535B2
公开(公告)日：2021-07-06
申请号：US16812844
申请日：2020-03-09
发明人： Robert Olesen , Bryan Egner , Darren Holland , Valerie Martin , James Bevins , Larry Burggraf , Buckley O'Day
摘要： A directional radiation detection system and an omnidirectional radiation detector. The omnidirectional radiation detector detects radiation comprising at least one of: (i) gamma rays; and (ii) neutron particles. A radiation scatter mask (RSM) of the radiation detection system includes a rotating sleeve received over the omnidirectional radiation detector and rotating about a longitudinal axis. The RSM further includes: (i) a fin extending longitudinally from one side of the rotating sleeve; and (ii) a wall extending from the rotating sleeve and spaced apart from the fin having an upper end distally positioned on the rotating sleeve spaced apart or next to from a first lateral side of the fin and a lower end proximally positioned on the rotating sleeve and spaced apart from or next to a second lateral side of the fin.
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公开(公告)号：US20190391283A1
公开(公告)日：2019-12-26
申请号：US16448950
申请日：2019-06-21
申请人： Wearifi, Inc.
摘要： The instant disclosure is directed to wearable dermatological systems with battery-free sensors, and kits which include those wearable systems. A kit may include a wearable system comprising a wireless, battery-free radiation sensor configured to detect radiation at one or more radiation wavelengths, and a reader coupled to the radiation sensor and configured to collect information related to at least one characteristic feature of the detected radiation. The kit may also include a product comprising at least one active ingredient. The wearable system may be configured for use by users known to suffer from a number of dermatological conditions, and may further comprise a controller configured to report to a user, which may include suggesting that the user perform a function when the amount of detected radiation exceeds a predetermined limit.
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公开(公告)号：US10168435B2
公开(公告)日：2019-01-01
申请号：US15430894
申请日：2017-02-13
申请人： THERMO EBERLINE LLC
摘要： A system includes a pulse counter having a selectable pulse counter read-out rate, a pulse counter read-out (PCRO) storage register that stores a PCRO count, and a pulse-burst counter that has a pulse-burst counter read-out rate that is faster than all but the fastest selectable pulse counter read-out rate, a subtractor module in electronic communication with the pulse counter and the PCRO that subtracts the PCRO count from the pulse counter read-out count to output an uncorrected pulse count, a selection module in electronic communication with the pulse-burst counter that selects the pulse counter read-out rate in response to input from the pulse-burst counter, a multiplexer in electronic communication with the subtractor module and the selection module, the multiplexer selecting from among at least two dead-time correction transforms, the transform corresponding to the selected pulse counter read-out rate, and a control-and-readout module that outputs a dead-time corrected pulse rate.
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公开(公告)号：US08183532B2
公开(公告)日：2012-05-22
申请号：US12441537
申请日：2007-09-10
CPC分类号： G01T1/17 , A61B6/027 , A61B6/037 , A61B6/503 , G01T1/1647
摘要： In a disclosed imaging method, the instantaneous speed or data acquisition dwell times of a detector head (14, 16) is optimized as a function of position along a path (P) of the detector head around a subject (S, SS, SXL). The optimization is respective to an expected radioactive emission profile (EPROI) of a region of interest (H, HS, HXL) that is less than the entire subject. The detector head is traversed along the path using the optimized instantaneous speed or data acquisition dwell times (40). During the traversing, imaging data are acquired using the detector head. The acquired imaging data are reconstructed to generate a reconstructed image of at least the region of interest. A gamma camera (10) configured to perform the foregoing imaging method is also disclosed.
摘要翻译： 在公开的成像方法中，检测器头（14,16）的瞬时速度或数据采集驻留时间被优化为围绕被检体（S，SS，SXL）的检测器头的路径（P）的位置的函数， 。 优化对应于小于整个受试者的感兴趣区域（H，HS，HXL）的预期放射性发射谱（EPROI）。 使用优化的瞬时速度或数据采集停留时间（40），检测器头沿路径运行。 在运行期间，使用检测器头获取成像数据。 所获取的成像数据被重建以生成至少感兴趣的区域的重建图像。 还公开了配置成执行上述成像方法的γ照相机（10）。
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公开(公告)号：US20080283758A1
公开(公告)日：2008-11-20
申请号：US12110474
申请日：2008-04-28
IPC分类号： G01T1/15
CPC分类号： G01T1/2985 , A61B6/037
摘要： A method for correcting PET emission data for prompt gamma emission background components present in non-pure positron-emitting isotopes uses a two component fit of modeled scatter and modeled prompt gamma emission in the area of scatter tails in a normalized emission sinogram. The method allows a PET scan using non-standard PET isotopes to be quantitative and thus more clinically useful.
摘要翻译： 用于校正存在于非纯正电子发射同位素中的迅速γ发射背景分量的PET发射数据的方法使用归一化发射正弦图中散射尾部区域中的建模散射和建模的提示γ发射的双分量拟合。 该方法允许使用非标准PET同位素的PET扫描是定量的，因此在临床上更有用。
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公开(公告)号：US4825077A
公开(公告)日：1989-04-25
申请号：US121099
申请日：1987-11-16
申请人： Riad A. Tawil , David H. Sicking
发明人： Riad A. Tawil , David H. Sicking
摘要： A system and related method for sensing a parameter of a medium by means of radiation attenuation, the system including a radiation source for emitting radiation that will be attenuated as a function of the parameter upon passage through the medium and a radiation detector operatively positioned to detect the radiation that will be attenuated as aforesaid, and the system being further characterized by the detector comprising a scintillator probe for producing an electrical current output proportionally representative of detected radiation, a current integrator for continuously integrating the electrical current output of the scintillator probe, the current integrator having an input for receiving the electrical current output of the scintillator probe and an output for producing an electrical output representative of the integral of curernt received at the input thereof, a charge injector for supplying to the input of the current integrator current pulses of predetermined total charge and of opposite polarity relative to the electrical current output of the scintillator probe in response to the output of the current integrator having a predetermined characteristic, and a detector output for generating count signals at a frequency proportionally representative of the frequency at which the current pulses are supplied to the input of the current integrator by the charge injector.
摘要翻译： 一种用于通过辐射衰减来感测介质的参数的系统和相关方法，所述系统包括用于发射辐射的辐射源，所述辐射源将在通过介质时作为参数衰减的功能;以及辐射探测器，其被可操作地定位以检测 将如上所述将被衰减的辐射，并且该系统的特征还在于检测器包括用于产生与检测到的辐射成比例地代表的电流输出的闪烁体探针，用于连续积分闪烁体探针的电流输出的电流积分器， 具有用于接收闪烁体探针的电流输出的输入的电流积分器和用于产生代表在其输入处接收的固化的积分的电输出的输出;电荷注入器，用于向电流积分器的输入提供电流脉冲 预定总费用 并且响应于具有预定特性的电流积分器的输出，相对于闪烁体探针的电流输出具有相反极性的检测器输出;以及检测器输出，用于以比例地代表电流脉冲的频率的频率产生计数信号 通过电荷注入器提供给当前积分器的输入。
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公开(公告)号：US4591984A
公开(公告)日：1986-05-27
申请号：US406514
申请日：1982-08-09
申请人： Issei Mori
发明人： Issei Mori
摘要： A radiation measuring device comprising a radiation detector for detecting radiation quantum arriving in the Poisson distribution, a phase height analyzer for analyzing a height of an output signal from the detector to extract signal components at a level within a predetermined level, converter for integrating an output signal from the detector to produce pulses of which the number corresponds to the integrated value, a switch for selecting the output signal from the analyzer when the number of arrival photons is smaller than a predetermined value and for selecting the output signal from the converter when the number of photons is larger than the predetermined value and a counter for counting output pulses of the selected analyzer or counter.
摘要翻译： 一种辐射测量装置，包括用于检测到达泊松分布的辐射量子的辐射检测器，相位高度分析器，用于分析来自检测器的输出信号的高度，以提取在预定电平内的电平的信号分量，用于对输出进行积分 来自检测器的信号产生数字对应于积分值的脉冲，当到达光子数量小于预定值时用于选择来自分析器的输出信号的开关，以及当来自转换器的输出信号 光子数大于预定值，计数器用于计数所选择的分析器或计数器的输出脉冲。
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9.发明授权Digital radiation dosimeter with improved integrating pulse ionization chamber 失效具有改进的集成脉冲离子室的数字辐射剂量
公开(公告)号：US3712983A
公开(公告)日：1973-01-23
申请号：US3712983D
申请日：1971-11-09
发明人： BORKOWSKI C , ROCHELLE J
摘要： AN IMPROVED DIGITAL RADIATION DOSIMETER OF THE OSCILLATING IONIZATION CHAMBER TYPE INCLUDING A GAS DIODE CONNECTED IN SERIES WITH THE CHAMBER ANODE HAS BEEN PROVIDED WITH IMPROVED OPERATION AND MINIATURIZATION OF THE DETECTOR CHAMBER. THIS IS MADE POSSIBLE BY A CIRCUIT THAT ADDS STROBE PULSES TO THE NORMAL DC CHAMBER BIAS VOLTAGE SO AS TO ALLOW THE GAS DIODE TO DISCHARGE EVEN THOUGH THE ACTIVE CHAMBER VOLUME IS NOT LARGE ENOUGH TO PRODUCE SUFFICIENT DIODE BIAS CURRENT AT LOW RADIATION EXPOSURE RATES.
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