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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
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

254
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
254

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相关实验视频

Updated: Jul 22, 2025

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
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Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

Published on: March 29, 2016

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对KEK e-/e+注入器 linac进行控制调查和分析.

Y Okayasu1, T Suwada1, K Kakihara1

  • 1High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan.

The Review of scientific instruments
|July 21, 2023
PubMed
概括

一种使用激光追踪器和数字水平的新控制调查技术被用于KEK电子正子注入器 linac. 两年的数据证实了它的趋势可重现性,并提供了对系统坐标和错误分布的见解.

科学领域:

  • 粒子加速器中的粒子加速器
  • 计量学 计量学 计量学
  • 高能物理 高能物理

背景情况:

  • 凯克电子正子注射器 linac 需要精确的对齐以获得最佳性能.
  • 对于复杂的加速器结构,传统的测量方法可能耗时且不太准确.

研究的目的:

  • 引入和评估使用激光追踪器和数字水平的控制调查技术,用于KEK注入器 linac.
  • 分析两年收集的数据,以评估技术的可靠性和识别潜在的问题.

主要方法:

  • 2020年实施使用激光追踪器和数字水平的控制调查技术.
  • 在夏季机器停机期间定期进行调查.
  • 分析两年的数据,以复制趋势和错误分布.

主要成果:

  • 控制调查技术成功地在两年内重现了光束线上信托点的趋势.
  • 评估了系统坐标及其误差分布.
  • 与数值调查模拟进行了比较.

结论:

  • 实施的控制调查技术有效地监测了KEK注射器的线性对齐.
  • 该研究提供了有关系统错误及其分布的宝贵数据.

更多相关视频

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
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Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
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相关实验视频

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Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
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Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
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Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
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  • 在调查过程中遇到的新问题被确定为未来的改进.