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相关概念视频

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...
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...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...

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Updated: Jun 25, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

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高通量太赫兹成像:进展和挑战

Xurong Li1,2, Jingxi Li1,2,3, Yuhang Li1,2,3

  • 1Department of Electrical & Computer Engineering, University of California Los Angeles (UCLA), Los Angeles, CA, 90095, USA.

Light, science & applications
|September 15, 2023
PubMed
概括
此摘要是机器生成的。

太赫兹成像硬件和计算方法的进步正在克服缓慢的扫描速度. 这使得安全查和生物医学诊断等应用程序的特拉赫兹成像速度更快.

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 影像科学 影像科学
  • 应用物理 应用物理

背景情况:

  • 在非破坏性评估,生物医学诊断和安全查中的特拉赫兹 (THz) 成像应用因拉斯特扫描速度缓慢而受到限制.
  • 最近的技术进步显著提高了成像吞吐量,使THz成像更接近实际,现实世界的部署.

研究的目的:

  • 审查太赫兹成像技术的演变,重点关注硬件和计算成像进步.
  • 为了比较各种硬件组件和计算算法,用于高通量THz成像.

主要方法:

  • 探索用于频域和时间域太赫兹成像的不同硬件,包括热,光子和场传感器阵列.
  • 讨论计算成像算法,使得高速度捕获各种图像数据 (飞行时间,光谱,相位,强度).

主要成果:

  • 确定关键的硬件和计算成像策略,以提高太赫兹成像吞吐量.
  • 对比不同的传感器技术和数据采集方法用于太赫兹成像.

结论:

  • 由于硬件和计算突破,高通量太赫兹成像系统正在变得可行.
  • 太赫兹成像系统的未来发展面临的前景和挑战将塑造它们的广泛采用.