-
1.发明申请ISOTOPIC IMAGING VIA NUCLEAR RESONANCE FLUORESCENCE WITH LASER-BASED THOMSON RADIATION 有权通过基于激光的THOMSON辐射的核共振荧光同位素成像公开(公告)号：US20090147920A1
公开(公告)日：2009-06-11
申请号：US11528182
申请日：2006-09-26
IPC分类号： G01N23/201
CPC分类号： G01N23/223 , G01N2223/076
摘要： The present invention utilizes novel laser-based, high-brightness, high-spatial-resolution, pencil-beam sources of spectrally pure hard x-ray and gamma-ray radiation to induce resonant scattering in specific nuclei, i.e., nuclear resonance fluorescence. By monitoring such fluorescence as a function of beam position, it is possible to image in either two dimensions or three dimensions, the position and concentration of individual isotopes in a specific material configuration. Such methods of the present invention material identification, spatial resolution of material location and ability to locate and identify materials shielded by other materials, such as, for example, behind a lead wall. The foundation of the present invention is the generation of quasimonochromatic high-energy x-ray (100's of keV) and gamma-ray (greater than about 1 MeV) radiation via the collision of intense laser pulses from relativistic electrons. Such a process as utilized herein, i.e., Thomson scattering or inverse-Compton scattering, produces beams having diameters from about 1 micron to about 100 microns of high-energy photons with a bandwidth of ΔE/E of approximately 10E−3.
摘要翻译： 本发明利用光谱纯硬X射线和γ射线辐射的新颖的基于激光的高亮度，高空间分辨率的铅笔光束来诱导特定核中的共振散射，即核共振荧光。 通过监测作为光束位置的函数的这种荧光，可以在二维或三维中成像特定材料构型中单个同位素的位置和浓度。 本发明的这种方法材料识别，材料位置的空间分辨以及定位和识别由其他材料（例如，铅壁后面）屏蔽的材料的能力。 本发明的基础是通过来自相对论电子的强激光脉冲的碰撞产生准二色性高能x射线（keV的100）和伽马射线（大于约1MeV）辐射。 这种在本文中使用的方法，即汤姆逊散射或反康普顿散射，产生具有约1微米至约100微米的具有约10E-3的带宽DeltaE / E的高能光子的光束。
-
2.发明申请DUAL ISOTOPE NOTCH OBSERVER FOR ISOTOPE IDENTIFICATION, ASSAY AND IMAGING WITH MONO-ENERGETIC GAMMA-RAY SOURCES 有权用于同位素识别，测定和成像与单能伽马射线源的双重同位素观察公开(公告)号：US20130003924A1
公开(公告)日：2013-01-03
申请号：US12506639
申请日：2009-07-21
IPC分类号： G01N23/04
CPC分类号： G01V5/0008 , G01N23/04 , G01N2223/1013
摘要： A dual isotope notch observer for isotope identification, assay and imaging with mono-energetic gamma-ray sources includes a detector arrangement consists of three detectors downstream from the object under observation. The latter detector, which operates as a beam monitor, is an integrating detector that monitors the total beam power arriving at its surface. The first detector and the middle detector each include an integrating detector surrounding a foil. The foils of these two detectors are made of the same atomic material, but each foil is a different isotope, e.g., the first foil may comprise U235 and second foil may comprise U238. The integrating detectors surrounding these pieces of foil measure the total power scattered from the foil and can be similar in composition to the final beam monitor. Non-resonant photons will, after calibration, scatter equally from both foils.
摘要翻译： 用于同位素识别，测定和单能伽马射线源成像的双同位素陷波观测器包括由观察对象下游的三个检测器组成的检测器装置。 作为光束监视器操作的后一个检测器是一个集成检测器，监视到达其表面的总光束功率。 第一检测器和中间检测器都包括围绕箔的积分检测器。 这两个检测器的箔由相同的原子材料制成，但是每个箔是不同的同位素，例如，第一箔可以包括U235，第二箔可以包括U238。 围绕这些箔的集成检测器测量从箔散射的总功率，并且在组成上可以与最终的光束监视器相似。 非共振光子在校准之后将从两个箔平均散射。
-
3.发明授权Isotopic imaging via nuclear resonance fluorescence with laser-based Thomson radiation 有权通过基于激光的汤姆森辐射的核共振荧光进行同位素成像公开(公告)号：US07564241B2
公开(公告)日：2009-07-21
申请号：US11528182
申请日：2006-09-26
IPC分类号： G01V3/00
CPC分类号： G01N23/223 , G01N2223/076
摘要： The present invention utilizes novel laser-based, high-brightness, high-spatial-resolution, pencil-beam sources of spectrally pure hard x-ray and gamma-ray radiation to induce resonant scattering in specific nuclei, i.e., nuclear resonance fluorescence. By monitoring such fluorescence as a function of beam position, it is possible to image in either two dimensions or three dimensions, the position and concentration of individual isotopes in a specific material configuration. Such methods of the present invention material identification, spatial resolution of material location and ability to locate and identify materials shielded by other materials, such as, for example, behind a lead wall. The foundation of the present invention is the generation of quasimonochromatic high-energy x-ray (100's of keV) and gamma-ray (greater than about 1 MeV) radiation via the collision of intense laser pulses from relativistic electrons. Such a process as utilized herein, i.e., Thomson scattering or inverse-Compton scattering, produces beams having diameters from about 1 micron to about 100 microns of high-energy photons with a bandwidth of ΔE/E of approximately 10E−3.
摘要翻译： 本发明利用光谱纯硬X射线和γ射线辐射的新颖的基于激光的高亮度，高空间分辨率的铅笔光束来诱导特定核中的共振散射，即核共振荧光。 通过监测作为光束位置的函数的这种荧光，可以在二维或三维中成像特定材料构型中单个同位素的位置和浓度。 本发明的这种方法材料识别，材料位置的空间分辨以及定位和识别由其他材料（例如，铅壁后面）屏蔽的材料的能力。 本发明的基础是通过来自相对论电子的强激光脉冲的碰撞产生准二色性高能x射线（keV的100）和伽马射线（大于约1MeV）辐射。 这种在本文中使用的方法，即汤姆逊散射或反康普顿散射，产生具有约1微米至约100微米的具有约10E-3的带宽DeltaE / E的高能光子的光束。
-
-
搜索结果
3 条记录 (耗时 0.033 秒)
