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
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
2027 ANS Winter Conference and Expo
October 31–November 4, 2027
Washington, DC|The Westin Washington, DC Downtown
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
Nov 2024
Jul 2024
Latest Journal Issues
Nuclear Science and Engineering
December 2024
Nuclear Technology
Fusion Science and Technology
November 2024
Latest News
Senate committee advances NRC nominee Matthew Marzano
Marzano
The U.S. Senate Environment and Public Works Committee voted 10–9 last week to advance the nomination of Matthew Marzano to serve on the Nuclear Regulatory Commission. It was a party-line vote, with all Democrats supporting Marzano and all Republicans voting “no.”
Marzano was nominated by President Biden in July to fill the open NRC seat, and the EPW Committee held a hearing in September on his nomination. His nomination will now go to the Senate for a vote, but it is not certain whether that will happen before the end of the year, in which case his nomination process would start over in 2025.
The five-member commission has been without a tiebreaker vote since June 2023 when Jeff Baran’s term expired.
M. Goto, S. Morita, H. Y. Zhou, C. F. Dong, LHD Experiment Group
Fusion Science and Technology | Volume 58 | Number 1 | July-August 2010 | Pages 394-411
Chapter 8. Diagnostics | Special Issue on Large Helical Device (LHD) | doi.org/10.13182/FST10-A10825
Articles are hosted by Taylor and Francis Online.
Various types of spectrometers corresponding to different wavelength ranges from X-ray to visible have been developed for the Large Helical Device (LHD). The charge-coupled device is demonstrated to be a suitable solution as a detector for spectral measurements irrespective of the wavelength range. In the ultraviolet (UV)-visible range, an astigmatism-corrected 1.3-m Czerny-Turner-type spectrometer is developed for a simultaneous measurement with 80 lines of sight. Two other UV-visible spectrometers having focal lengths of 0.3 and 0.5 m, respectively, are also prepared for wide wavelength range measurements. An in situ sensitivity calibration is attempted for these spectrometers, for which visible bremsstrahlung from the LHD plasma is utilized. In the vacuum ultraviolet range (30 to 310 nm), a normal incidence spectrometer having a focal length of 3 m is developed for a spatial intensity profile measurement of impurity ions, especially in the plasma boundary region, and for measurements of line broadening of several impurity ions. A number of forbidden emission lines due to magnetic dipole transitions are also identified with this spectrometer. In the extreme ultraviolet range (1 to 50 nm), flat-field spectrometers are developed for measurements of emission lines from high-Z impurities in the plasma core. Two types of gratings, i.e., mechanically ruled and laminar-type holographic, have been tested, and the latter is found to be preferable with respect to the reflectivity and the resolution power. A Johann-type X-ray crystal spectrometer is developed for measurements of the central ion temperature, for which the resonance line of Ar XVII ion (1s2 1S0 - 1s2p 1P1) is mainly used. The central ion temperature is routinely measured with high time resolution.
