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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
Standards Program
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
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A more open future for nuclear research
A growing number of institutional, national, and funder mandates are requiring researchers to make their published work immediately publicly accessible, through either open repositories or open access (OA) publications. In addition, both private and public funders are developing policies, such as those from the Office of Science and Technology Policy and the European Commission, that ask researchers to make publicly available at the time of publication as much of their underlying data and other materials as possible. These, combined with movement in the scientific community toward embracing open science principles (seen, for example, in the dramatic rise of preprint servers like arXiv), demonstrate a need for a different kind of publishing outlet.
Kiyoshi Yatsu, Teruji Cho, Mafumi Hirata, Hitoshi Hojo, Makoto Ichimura, Kameo Ishii, Akiyoshi Itakura, Isao Katanuma, Junko Kohagura, Yousuke Nakashima, Teruo Saito, Teruo Tamano, Satoshi Tanaka, Yoshinori Tatematsu, Masayuki Yoshikawa
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 3-9
Invited Review Lectures | doi.org/10.13182/FST01-A11963408
Articles are hosted by Taylor and Francis Online.
After the last Novosibirsk Conference (1998), GAMMA 10 experiments have advanced in long sustainment of confining potential and higher density experiments. An experiment which attained doubling of density due to potential confinement with a 50 ms duration was reported before [1]. Experiments for long sustainment of potential confinement were carried out in order to study problems of steady state operation of a tandem mirror reactor. A confining potential was sustained for 150 ms by sequentially injecting two electron cyclotron resonance heating (ECRH) powers in the plug region. It was difficult before to increase the central cell density higher than about 2.5 × 1012cm−3 with and/or without potential confinement due to some density limiting mechanism. In order to overcome this problem, a new higher frequency ion cyclotron range of frequency (ICRF) system (RF3: 36–76 MHz, ω/ωci~6-10) has been installed. A higher density plasma has been produced with RF3. In addition to RF3, neutral beam injection (NBI) in the anchor cell became effective by reducing neutral gas from beam injectors. The plasma density in the anchor cell increased 70% by NBI for 20 ms, and the central cell density increased 20% with the density increase in the anchor cell. Potential confinement experiments at higher central cell densities up to 4 × 1012 cm−3 were carried out with RF3 and NBI and 15% density increase due to the potential confinement was obtained in the high density experiments. The ion temperature on the axis and particle confinement time during potential confinement were 3 keV and 10 ms, respectively. We expect a larger density increase at a higher initial density by optimization of heating scenario with respect to ECRH, ICRF heating and NBI.
