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関連する概念動画

X-ray Imaging01:24

X-ray Imaging

10.6K
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...
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X-ray Crystallography02:18

X-ray Crystallography

26.3K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
26.3K
Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

499
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
499
Location and Orientation of the Heart01:13

Location and Orientation of the Heart

10.7K
The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.
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Methods of Documentation I: Source-Oriented Records01:18

Methods of Documentation I: Source-Oriented Records

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Source-oriented records, or SOR, are medical record-keeping organized by the data source. The SOR system was first developed in the mid-1900s to organize the growing patient data in hospitals and other healthcare facilities.
In an SOR, each discipline involved in patient care maintains a separate medical record section. This record-keeping method enables easy tracking of patient progress and ensures healthcare staff have access to up-to-date information.
Key Attributes include the following:
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X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

4.9K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
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High Spatial Resolution Chemical Imaging of Implant-Associated Infections with X-ray Excited Luminescence Chemical Imaging Through Tissue
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High Spatial Resolution Chemical Imaging of Implant-Associated Infections with X-ray Excited Luminescence Chemical Imaging Through Tissue

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高解像度X線イメージング向け配向マイクロ構造シンチレータ

Xunpiao Liu1,2, Dazhao Wang1,2, Jianfeng Yan1,2

  • 1State Key Laboratory of Luminescent Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou, China.

Advanced materials (Deerfield Beach, Fla.)
|February 11, 2026
PubMed
まとめ
この要約は機械生成です。

研究者らは、高解像度X線イメージング用の新しいガラス複合シンチレータを開発しました。この構造化シンチレータは、優れた性能と印象的なイメージング解像度を達成し、以前の製造上の課題を克服しています。

キーワード:
ガラスルミネッセンス希土類透明複合材料

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Preparing Adherent Cells for X-ray Fluorescence Imaging by Chemical Fixation
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Microstructured Devices for Optimized Microinjection and Imaging of Zebrafish Larvae
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Microstructured Devices for Optimized Microinjection and Imaging of Zebrafish Larvae

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関連する実験動画

Last Updated: Feb 12, 2026

High Spatial Resolution Chemical Imaging of Implant-Associated Infections with X-ray Excited Luminescence Chemical Imaging Through Tissue
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Preparing Adherent Cells for X-ray Fluorescence Imaging by Chemical Fixation
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Microstructured Devices for Optimized Microinjection and Imaging of Zebrafish Larvae
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科学分野:

  • 材料科学
  • 光学
  • 医用画像処理

背景:

  • 構造化シンチレータは、高解像度X線イメージングに不可欠です。
  • 大規模で均一、配向性の高いマイクロ構造シンチレータの製造は、大きな課題となっています。

研究 の 目的:

  • 新規、大規模、均一、統合、配向マイクロ構造ガラス複合シンチレータを開発すること。
  • 現在のシンチレータ製造方法の限界を克服すること。

主な方法:

  • ガラスの配向結晶化習慣を誘発し、円柱状の微結晶配列を作成しました。
  • 高屈折率の微結晶を低屈折率のガラスマトリックスに埋め込みました。
  • 光子の方向性伝搬のための固有導波路構成を設計しました。

主要な成果:

  • 大規模で均一性の高い、統合された配向マイクロ構造ガラス複合シンチレータを達成しました。
  • BGOの5.67倍のX線励起ルミネッセンスにより、シンチレーション性能を向上させました。
  • X線イメージングシステムで30 lp mm-1という印象的なイメージング解像度を達成しました。
  • オール酸化物システムによる優れた耐環境性を発揮しました。

結論:

  • 新しいガラス複合シンチレータは、高解像度X線イメージングにおける重要な進歩を表しています。
  • このアプローチは、構造化シンチレータの主要な製造上のハードルを克服します。
  • 開発された材料は、次世代X線イメージングアプリケーションに大きな可能性を示しています。