公开(公告)号：US07262411B2

公开(公告)日：2007-08-28

申请号：US11295148

申请日：2005-12-06

申请人： Xuong Nguyen-Huu ,  Mark H. Ellisman ,  Stuart Kleinfelder

发明人： Xuong Nguyen-Huu ,  Mark H. Ellisman ,  Stuart Kleinfelder

IPC分类号： H01J37/22

CPC分类号： H01J37/244 ,  H01J37/224 ,  H01J37/26 ,  H01J2237/2441 ,  H01J2237/24455

摘要： A preferred method for transmission electron microscopy includes a step of generating a microscopy signal. The microscopy signal is then detected with an active pixel detector that includes a plurality of pixels. Each of the pixels includes at least one photodiode. Each pixel integrates an incident signal over a collection time period. Using a massively parallel on chip analog to digital conversion, very fast read out times can be achieved, e.g., many frames per second. In a preferred embodiment, the read out time permits there to be a single electron event recorded per pixel, indicating either a single electron or the lack thereof. This permits simple accumulation of the pixel counts for each pixel in read-out and storage electronics.

摘要翻译： 透射电子显微镜的优选方法包括产生显微镜信号的步骤。 然后用包括多个像素的有源像素检测器检测显微镜信号。 每个像素包括至少一个光电二极管。 每个像素在收集时间段内集成了一个入射信号。 使用大量并行片上模数转换，可以实现非常快的读出时间，例如每秒许多帧。 在优选实施例中，读出时间允许存在每像素记录的单个电子事件，指示单个电子或其缺乏。 这允许在读出和存储电子设备中的每个像素的像素计数的简单累积。

公开(公告)号：US5414261A

公开(公告)日：1995-05-09

申请号：US86237

申请日：1993-07-01

申请人： Mark H. Ellisman ,  Gary G. Y. Fan ,  Jeff Price ,  Seiichi Suzuki

发明人： Mark H. Ellisman ,  Gary G. Y. Fan ,  Jeff Price ,  Seiichi Suzuki

IPC分类号： H01J37/26 ,  H01J37/04

CPC分类号： H01J37/26

摘要： In the magnetic optical system of a transmission electron microscope (TEM), the increased strength of a second objective lens is used to increase the longitudinal energy dispersion by forming an image at a magnified second back-focal plane. The electric current distribution of other lenses in the microscope is reconfigured to compensate for any offsets introduced by the modified second objective lens. A plurality of deflectors are installed which enable the manipulation of the electron beam electronically between the specimen and the second back-focal plane. The magnified second back-focal plane is projected onto the selected-area aperture, allowing the use of the existing selected-area aperture as an objective aperture to achieve an energy filtering effect which improves the image contrast and resolution.

摘要翻译： 在透射电子显微镜（TEM）的磁光学系统中，通过在放大的第二后焦平面上形成图像，第二物镜的强度的增加被用于增加纵向能量的分散。 重新配置显微镜中其他透镜的电流分布，以补偿由修改的第二物镜引入的任何偏移。 安装多个偏转器，其能够以电子方式在样本和第二后焦平面之间操纵电子束。 放大的第二后焦平面被投影到选择的区域光圈上，允许使用现有的选择区域光圈作为物镜孔径来实现能量过滤效果，从而提高图像对比度和分辨率。

公开(公告)号：US07952073B2

公开(公告)日：2011-05-31

申请号：US12184995

申请日：2008-08-01

申请人： Robert B. Bilhorn ,  Mark H. Ellisman

发明人： Robert B. Bilhorn ,  Mark H. Ellisman

IPC分类号： G21K7/00

CPC分类号： H01J37/244 ,  H01J37/26 ,  H01J2237/043 ,  H01J2237/15 ,  H01J2237/2441 ,  H01J2237/2443 ,  H01J2237/24455 ,  H01J2237/2447

摘要： An apparatus for use with an electron beam for imaging a sample. The apparatus has a down-conversion detector configured to detect an electron microscopy signal generated by the electron beam incident on the sample, a direct bombardment detector adjacent to the down-conversion detector and configured to detect the electron microscopy signal, and a mechanism selectively exposing the down-conversion detector and the direct bombardment detector to the electron microscopy signal. A method using the apparatus is also provided.

摘要翻译： 一种用于电子束用于成像样品的装置。 该装置具有下变换检测器，其被配置为检测由入射在样品上的电子束产生的电子显微镜信号，与下变频检测器相邻的直接轰击检测器，并且被配置为检测电子显微镜信号，以及选择性地暴露 下转换检测器和直接轰击检测器到电子显微镜信号。 还提供了使用该装置的方法。

公开(公告)号：US5594253A

公开(公告)日：1997-01-14

申请号：US650225

申请日：1996-05-20

申请人： Clifford Bueno ,  Robert A. Betz ,  Mark H. Ellisman ,  Gary G. Y. Fan

发明人： Clifford Bueno ,  Robert A. Betz ,  Mark H. Ellisman ,  Gary G. Y. Fan

IPC分类号： G01T1/20 ,  G01T5/08

CPC分类号： G01T1/201 ,  G01T1/2018

摘要： A hybrid luminescent device for converting ionizing and penetrating radiation energy such as x-rays, gamma rays, neutrons, ions, electrons, and the like into visible light for imaging applications. The hybrid luminescent device includes a phosphor screen disposed on an entrance face fiber optics scintillator which, in turn, may be removably coupled to a camera or like recording media. The hybrid luminescent device of the present invention is capable of providing enhanced radiation absorption efficiency, higher spatial resolution and enhanced brightness or luminescence output over that which is achievable by the phosphor screen and/or fiber optics scintillator when used separately as an intensifying screen for imaging of ionizing and/or penetrating radiation.

摘要翻译： 用于将诸如x射线，γ射线，中子，离子，电子等的电离和穿透辐射能量转换成用于成像应用的可见光的混合发光装置。 混合发光装置包括设置在入射面光纤闪烁体上的荧光屏，其又可拆卸地耦合到相机或类似的记录介质。 本发明的混合发光装置能够提供增强的辐射吸收效率，更高的空间分辨率和增强的亮度或发光输出，超过当荧光屏和/或光纤闪烁体单独用作增强屏幕成像时可实现的 的电离和/或穿透辐射。