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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Fusion Science and Technology
Latest News
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Yuuji Okamoto, Masayuki Yoshikawa, Naohiro Yamaguchi, Chikara Watabe, Eiichirou Kawamori, Yoshihiko Watanabe, Takatoshi Furukawa, Teruo Tamano, Kiyoshi Yatsu
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 293-296
Poster Presentations | doi.org/10.13182/FST01-A11963464
Articles are hosted by Taylor and Francis Online.
Measurements of spectra in the wavelength range from vacuum ultraviolet (VUV) to soft X-ray are important means to diagnose impurities in magnetically confined plasmas used in fusion plasmas such as a GAMMA 10 plasma. Recently, a space- and time-resolving flat-field grazing-incidence VUV spectrograph was constructed for the simultaneous observation of spatial, temporal and spectral distributions of plasma radiation in the wavelength range of 150-1050 Å. Absolute calibration experiments of the space- and time-resolving VUV spectrograph in the wavelength range of 450-1050 Å were performed for the first time under both S and P polarized light conditions at beamline 11C in the Photon Factory at the High Energy Accelerator Research Organization. Thus, we can obtain radial profiles of the absolute emissions from the impurities by using Abel inversion, and estimate the density of impurity ions such as oxygen, carbon and so on. From the total impurity ion densities, we can estimate Zeff. During the formation of plug potential by ECRH, the highly-ionized impurities increased as a result of rising of electron temperature. The Zeff with plug potential is larger than that without plug potential.