Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview

In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...

Nuclear Transmutation

Nuclear Transmutation

Nuclear transmutation is the conversion of one nuclide into another. It can occur by the radioactive decay of a nucleus, or the reaction of a nucleus with another particle. The first manmade nucleus was produced in Ernest Rutherford’s laboratory in 1919 by a transmutation reaction, the bombardment of one type of nuclei with other nuclei or with neutrons. Rutherford bombarded nitrogen-14 atoms with high-speed α particles from a natural radioactive isotope of radium and observed...

Nuclear Fusion

Nuclear Fusion

The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...

You might also read

Related Articles

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

Sort by

Same author

Measurements of magnetic field fluctuations in TJ-II plasmas with new in-vessel helical arrays of magnetic coils.

The Review of scientific instruments·2022

Same author

A protection system for the JET ITER-like wall based on imaging diagnostics.

The Review of scientific instruments·2012

Same author

Lithium-Ion-Conducting Electrolytes: From an Ionic Liquid to the Polymer Membrane.

Journal of the Electrochemical Society·2010

Same author

LVN to BSN mobility: a profile of the LVN returning to school for a BS degree.

The Journal of nursing education·1995

Same author

5-HT3 receptor antagonists. 1. New quinoline derivatives.

Journal of medicinal chemistry·1992

Same author

New bronchodilators. II. 3H-imidazo[4,5-c]quinolin-4(5H)-ones.

Chemical & pharmaceutical bulletin·1992

Search research articles

Related Experiment Video

Updated: Mar 11, 2026

Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments

Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments

Published on: January 28, 2021

Tracer-Encapsulated Solid Pellet (TESPEL) injection system for the TJ-II stellarator.

N Tamura¹, K J McCarthy², H Hayashi¹

¹National Institute for Fusion Science, 322-6 Oroshi-cho, Toki-shi, Gifu 509-5292, Japan.

The Review of Scientific Instruments

|December 3, 2016

Summary

A new tracer-encapsulated solid pellet (TESPEL) injection system was successfully integrated with the TJ-II stellarator. This advancement streamlines development for plasma diagnostics and impurity behavior studies.

More Related Videos

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals

Published on: February 9, 2017

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

Related Experiment Videos

Last Updated: Mar 11, 2026

Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments

Automated Delivery of Microfabricated Targets for Intense Laser Irradiation Experiments

Published on: January 28, 2021

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals

Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals

Published on: February 9, 2017

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

Area of Science:

Fusion energy research
Plasma physics
Stellarator technology

Background:

The TJ-II stellarator requires advanced diagnostic tools for plasma analysis.
Developing new injection systems for plasma diagnostics can be time-consuming and costly.

Purpose of the Study:

To develop and test a cost-effective tracer-encapsulated solid pellet (TESPEL) injection system for the TJ-II stellarator.
To integrate a TESPEL injector with an existing cryogenic pellet injection system to reduce development time and expenses.

Main Methods:

Combined a TESPEL injector from the National Institute for Fusion Science with the existing TJ-II cryogenic pellet injection system.
Successfully injected TESPELs into the TJ-II plasma.
Utilized normal-incidence spectroscopy and other pellet diagnostics to monitor tracer impurity behavior.

Main Results:

Successful TESPEL injection into the TJ-II plasma was achieved.
The integration of the TESPEL injector with the cryogenic system proved effective in reducing development time and cost.
Pellet diagnostics confirmed the successful monitoring of tracer impurity behavior.

Conclusions:

The combined TESPEL injection system is a viable and efficient method for plasma diagnostics in the TJ-II stellarator.
This approach offers a cost-effective solution for developing advanced plasma diagnostic capabilities.
Further studies can leverage this system to investigate impurity transport and plasma behavior.