Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Scanning Electron Microscopy01:07

Scanning Electron Microscopy

4.3K
A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
Accelerated...
4.3K
Computed Tomography01:10

Computed Tomography

4.6K
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...
4.6K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Visualizing the 3D Evolution and Morphology of Hydrogen-Assisted Ductile Crack Growth in Hydrogen-Precharged P355NH Steel Using X-Ray Micro-Computed Tomography.

Materials (Basel, Switzerland)·2026
Same author

Monitoring of Layered Thermoplastic Composites Using Shape Memory Alloys as Integrated Sensors for Multifunctional Lightweight Structures.

Materials (Basel, Switzerland)·2025
Same author

Advanced Thermal Imaging Processing and Deep Learning Integration for Enhanced Defect Detection in Carbon Fiber-Reinforced Polymer Laminates.

Materials (Basel, Switzerland)·2025
Same author

High-Frequency Ultrasonic Spectroscopy of Structure Gradients in Injection-Molded PEEK Using a Focusing Transducer.

Sensors (Basel, Switzerland)·2023
Same author

Characterization of Filigree Additively Manufactured NiTi Structures Using Micro Tomography and Micromechanical Testing for Metamaterial Material Models.

Materials (Basel, Switzerland)·2023
Same author

Material Extrusion of Structural Polymer-Aluminum Joints-Examining Shear Strength, Wetting, Polymer Melt Rheology and Aging.

Materials (Basel, Switzerland)·2022

相关实验视频

Updated: Jul 18, 2025

3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography
07:01

3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography

Published on: October 24, 2019

9.9K

基于SEM的纳米CT中的目标设计及其对X射线成像的影响.

Jonas Fell1, Felix Wetzler1, Michael Maisl2

  • 1Lightweight Systems, Department of Materials Science, Campus E3 1, Saarland University, 66123 Saarbrücken, Germany.

Journal of imaging
|August 25, 2023
PubMed
概括

研究人员通过设计各种X射线目标来优化纳米计算机断层扫描 (纳米CT). 不同的目标几何形状提高了各种材料表征应用的图像质量,提高了纳米CT的性能.

关键词:
基于SEM的CT基于SEM的CT一个X射线源的X射线.一个X射线目标.图像质量图像质量 图像质量纳米-CTCT可以使用.的空间分辨率.

更多相关视频

Multimodal Hierarchical Imaging of Serial Sections for Finding Specific Cellular Targets within Large Volumes
11:19

Multimodal Hierarchical Imaging of Serial Sections for Finding Specific Cellular Targets within Large Volumes

Published on: March 20, 2018

10.5K
In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM
10:42

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM

Published on: June 16, 2016

9.3K

相关实验视频

Last Updated: Jul 18, 2025

3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography
07:01

3D Imaging of Soft-Tissue Samples using an X-ray Specific Staining Method and Nanoscopic Computed Tomography

Published on: October 24, 2019

9.9K
Multimodal Hierarchical Imaging of Serial Sections for Finding Specific Cellular Targets within Large Volumes
11:19

Multimodal Hierarchical Imaging of Serial Sections for Finding Specific Cellular Targets within Large Volumes

Published on: March 20, 2018

10.5K
In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM
10:42

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM

Published on: June 16, 2016

9.3K

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:

  • 基于扫描电子显微镜 (SEM) 的纳米计算机断层扫描 (纳米CT) 提供了多模式材料表征.
  • 基于SEM的CT的几何放大允许无需系统修改的可适应的X射线目标.

研究的目的:

  • 调查如何改变X射线目标几何和组成影响纳米CT图像质量.
  • 为特定的材料表征应用推最佳的目标设计.

主要方法:

  • 研究了三种目标几何形状:散装,薄膜和针目标.
  • 分析了每个目标设计的电子束特性和X射线束路径.
  • 评估了目标设计对X射线成像性能的影响.

主要成果:

  • 一个金 (Pt) 大量目标 (25°倾斜) 提供高光子流和空间分辨率,用于快速扫描高吸收样品.
  • 一个 (Cr) 目标 (30°倾斜) 提高了像聚合物这样的低吸收材料的图像对比度.
  • 一个 (W) 针的目标 (约. 100纳米尖端直径) 的最大空间分辨率为~100纳米.

结论:

  • 对于优化纳米CT性能而言,X射线目标设计至关重要.
  • 对于不同的成像任务,建议使用特定的目标几何形状和材料,以提高分辨率,对比度和速度.