ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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!
Latest Magazine Issues
Apr 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Zap Energy hits 37-million-degree electron temperatures in compact fusion device
Zap Energy announced April 23 that it has reached 1-3 keV plasma electron temperatures—roughly the equivalent of 11 to 37 million degrees Celsius—using its sheared-flow-stabilized Z-pinch approach to fusion. Reaching temperatures above that of the sun’s core (which is 10 million degrees Celsius temperature) is just one hurdle required before any fusion confinement concept can realistically pursue net gain and fusion energy.
S. Brezinsek, A. Huber, S. Jachmich, A. Pospieszczyk, B. Schweer, G. Sergienko
Fusion Science and Technology | Volume 47 | Number 2 | February 2005 | Pages 209-219
Technical Paper | TEXTOR: Diagnostics | doi.org/10.13182/FST05-A701
Articles are hosted by Taylor and Francis Online.
The exploration of plasma-wall-interaction physics is one of the major tasks of the tokamak TEXTOR. A characterization of the high-temperature plasma edge is essential to interpret the interaction processes of the different charged and uncharged particles in the boundary layer. In the design of the TEXTOR, much effort was made to optimize diagnostic access to the plasma edge for the best possible characterization. The major part of the plasma edge diagnostics presented here is based on passive and active spectroscopy, in addition to different types of electrical probes. Thereby, pioneering work has been achieved in both fields.In passive emission spectroscopy, the work concentrated on the determination of particle fluxes of different types of atomic (W, Si, C, . . .) and molecular (D2, CD, C2, . . .) species from the corresponding photon fluxes at different locations and on the visualization of the local impurity sources by means of two-dimensional imaging. The active spectroscopy with atomic beams was focused on the determination of plasma edge parameters (ne, Te, Ti, . . .) with good spatial and temporal resolution. Therefore, different techniques like thermal Li and He beams, suprathermal Li beams - realized by laser blow-off techniques - and hydrogen neutral beam injectors have been employed. Furthermore, laser-induced fluorescence measurements in the ultraviolet and in the vacuum ultraviolet ranges, which were for the first time performed in a fusion plasma, are presented. The continuous improvement of the different plasma edge diagnostics over more than a decade of TEXTOR plasma operation with different types of first-wall materials is discussed.