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相关概念视频

Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Three-Dimensional Microscopy in Microbiology01:28

Three-Dimensional Microscopy in Microbiology

Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...
Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
X-ray Imaging01:24

X-ray Imaging

German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...

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相关实验视频

Updated: Jul 12, 2026

Using Synchrotron Radiation Microtomography to Investigate Multi-scale Three-dimensional Microelectronic Packages
08:46

Using Synchrotron Radiation Microtomography to Investigate Multi-scale Three-dimensional Microelectronic Packages

Published on: April 13, 2016

三维X射线微观断层扫描

B P Flannery, H W Deckman, W G Roberge

    Science (New York, N.Y.)
    |September 18, 1987
    PubMed
    概括

    X射线微观图谱提供了一种新的非破坏性方法,可以创建材料组成的详细3D地图. 这种技术实现了高精度和分辨率,使小样本能够进行精确的元素分析.

    科学领域:

    • 材料科学 材料科学 材料科学
    • 物理 物理学 物理
    • 图像技术技术的成像技术

    背景情况:

    • X射线微观断层扫描是一种强大的技术,用于非破坏性分析.
    • 在各种科学领域中,精确的材料属性的3D映射至关重要.

    研究的目的:

    • 介绍和描述一种新的X射线微断层图像技术.
    • 为了证明其产生高精度,高分辨率3D地图的能力.
    • 以展示使用同步子源的元素映射.

    主要方法:

    • 采用X射线微断层扫描技术进行非破坏性3D成像.
    • 使用同步射线X射线源进行空间分辨率元素映射.
    • 开发了用于断层图形重建的高速算法.
    • 集成了一个高分辨率成像X射线探测器.

    主要成果:

    • 在X射线衰减系数映射中达到大约1%的准确性.
    • 达到了接近1微米的空间分辨率.
    • 成功制作出空间分辨率高的元素地图.
    • 呈现了用同步机和实验室来源展示性能的断层图像.

    更多相关视频

    High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT
    08:57

    High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT

    Published on: June 21, 2011

    Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography
    08:51

    Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography

    Published on: May 27, 2008

    相关实验视频

    Last Updated: Jul 12, 2026

    Using Synchrotron Radiation Microtomography to Investigate Multi-scale Three-dimensional Microelectronic Packages
    08:46

    Using Synchrotron Radiation Microtomography to Investigate Multi-scale Three-dimensional Microelectronic Packages

    Published on: April 13, 2016

    High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT
    08:57

    High Resolution 3D Imaging of Ex-Vivo Biological Samples by Micro CT

    Published on: June 21, 2011

    Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography
    08:51

    Non-invasive 3D-Visualization with Sub-micron Resolution Using Synchrotron-X-ray-tomography

    Published on: May 27, 2008

    结论:

    • 新的X射线微观图谱技术提供了准确和高分辨率的3D材料特征.
    • 它可以进行详细的元素分析,特别是同步辐射.
    • 该系统对同步机和基于实验室的应用都有效.