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 Experiment Videos

High-beta equilibria of drift-optimized compact stellarators.

A S Ware1, S P Hirshman, D A Spong

  • 1University of Montana-Missoula, Missoula, Montana 59812, USA.

Physical Review Letters
|September 13, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Fast Ion Transport in the Three-Dimensional Reversed-Field Pinch.

Physical review letters·2019
Same author

First Direct Observation of Runaway-Electron-Driven Whistler Waves in Tokamaks.

Physical review letters·2018
Same author

[Determination of cadmium in human urine by colloidal gold immunochromatographic assay].

Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases·2017
Same author

THE INFLUENCE OF POSTERIOR APPROACH CERVICAL INTRASPINAL TUMOR RESECTION ON THE STABILITY OF CERVICAL VERTEBRA.

Journal of biological regulators and homeostatic agents·2015
Same author

Porcine model to evaluate local tissue tolerability associated with subcutaneous delivery of protein.

Journal of pharmacological and toxicological methods·2013
Same author

Fast-particle-driven Alfvénic modes in a reversed field pinch.

Physical review letters·2012

New hybrid stellarator-tokamak designs achieve stable, high-beta plasma confinement. These configurations offer improved stability and reduced bootstrap current, crucial for fusion energy development.

Area of Science:

  • Plasma Physics
  • Fusion Energy Research
  • Magnetohydrodynamics

Background:

  • Achieving stable plasma confinement at high plasma pressures (beta) is essential for magnetic fusion energy.
  • Traditional stellarators and tokamaks face challenges with stability and confinement properties.

Purpose of the Study:

  • To investigate novel compact stellarator configurations with enhanced stability and confinement properties.
  • To explore tokamak-stellarator hybrid designs that leverage the advantages of both concepts.

Main Methods:

  • Development of drift-optimized stellarator configurations with tokamak-like rotational transform profiles.
  • Analysis of plasma stability against pressure-driven and current-driven modes.
  • Evaluation of neoclassical confinement and magnetic well properties.

Related Experiment Videos

Main Results:

  • Compact stellarator configurations achieved good neoclassical confinement and stability at high beta.
  • Configurations exhibit tokamak-like rotational transform and poloidally symmetric magnetic field strength.
  • Reduced bootstrap current (1/3-1/5 of tokamak equivalent) enhances stability to kink modes.

Conclusions:

  • Hybrid stellarator-tokamak designs offer a promising pathway to high-beta, stable plasma confinement.
  • Strong magnetic wells contribute to high interchange stability beta limits (up to 23%).
  • Reduced bootstrap current enables higher operational beta (7%-11%) without wall stabilization compared to advanced tokamaks.