Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Thomson's e/m Experiment01:19

Thomson's e/m Experiment

4.7K
In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform particle speeds. An arrangement known as a velocity selector uses electric and magnetic fields to pick particles with a particular speed from the beam.
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The...
4.7K
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

1.3K
Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and signal-to-noise ratio for the analyte. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.
Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called collision-induced...
1.3K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Value of the CD177/CD10 ratio in neutrophils in predicting infection risk in burn patients and the establishment of its normal reference range].

Zhonghua shao shang yu chuang mian xiu fu za zhi·2026
Same author

[Clinical characteristics of smoking asthma and efficacy of long-acting muscarinic antagonist in treating patients with smoking asthma].

Zhonghua yi xue za zhi·2026
Same author

Customized 3D-printed surgical templates for maxillary repositioning: a systematic review.

International journal of oral and maxillofacial surgery·2026
Same author

[A dual-center study of enhanced CT-based nomograms predicts spontaneous portosystemic shunts on initial hemorrhage from rupture of esophageal gastric varices in cirrhosis].

Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology·2026
Same author

[Annual progress in chemotherapy for tuberculosis in 2025].

Zhonghua jie he he hu xi za zhi = Zhonghua jiehe he huxi zazhi = Chinese journal of tuberculosis and respiratory diseases·2026
Same author

A Protocol to Preserve the Dural Safety Margin During Simultaneous Hybrid Lumbar Unilateral Biportal Endoscopy and Cervical Laminoplasty.

World neurosurgery·2026

Related Experiment Video

Updated: Sep 21, 2025

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

12.4K

Thomson scattering diagnostic system for the XuanLong-50 experiment.

H Y Li1, S J Li1, Q F Xie1

  • 1Hebei Key Laboratory of Compact Fusion, Langfang 065001, China.

The Review of Scientific Instruments
|June 1, 2022
PubMed
Summary

A Thomson scattering diagnostic system was developed for the XuanLong-50 spherical torus experiment. This system enables precise plasma density measurements, even at low densities, crucial for fusion energy research.

More Related Videos

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

7.8K
Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
06:46

Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic

Published on: August 25, 2016

11.4K

Related Experiment Videos

Last Updated: Sep 21, 2025

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

12.4K
Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

7.8K
Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic
06:46

Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic

Published on: August 25, 2016

11.4K

Area of Science:

  • Plasma Physics
  • Fusion Energy Research
  • Diagnostic Systems

Background:

  • Spherical torus experiments require advanced diagnostics for plasma characterization.
  • Accurate electron density measurements are critical for understanding plasma behavior in fusion devices.
  • Previous diagnostic limitations hindered low-density plasma studies.

Purpose of the Study:

  • To develop and present a 15-point Thomson scattering diagnostic system for the XuanLong-50 spherical torus.
  • To enable reliable plasma density measurements at low densities (∼0.5 × 10^18 m^-3).
  • To detail the system's design and initial performance.

Main Methods:

  • Utilized a BeamTech laser (3 J/pulse, 1064 nm, 50 Hz) for Thomson scattering.
  • Optimized opto-mechanical subsystems to maximize scattered light collection and minimize stray light.
  • Employed high bandwidth trans-impedance amplifiers and high-speed digitizers for signal processing.
  • Applied multi-pulse averaging to enhance the signal-to-noise ratio.

Main Results:

  • Successfully developed a 15-point Thomson scattering diagnostic system.
  • Demonstrated capability for measurements in low-density plasma regimes.
  • Initial experimental results indicate successful system operation and data acquisition.

Conclusions:

  • The developed Thomson scattering system is effective for diagnosing the EXL-50 spherical torus.
  • The system's design overcomes challenges in measuring low-density plasmas.
  • This advancement contributes to the understanding and development of fusion energy.