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.
Explore membership for yourself or for your organization.
Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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
Oct 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
November 2025
Nuclear Technology
October 2025
Fusion Science and Technology
Latest News
Russia withdraws from 25-year-old weapons-grade plutonium agreement
Russia’s lower house of Parliament, the State Duma, approved a measure to withdraw from a 25-year-old agreement with the United States to cut back on the leftover plutonium from Cold War–era nuclear weapons.
Janusz Wolski, Jerzy Wyzgal
Fusion Science and Technology | Volume 21 | Number 2 | March 1992 | Pages 142-146
Technical Paper | Experimental Device | doi.org/10.13182/FST92-A29733
Articles are hosted by Taylor and Francis Online.
A neutron spectrometry system is proposed to provide information about the ion plasma temperature profiles in the International Thermonuclear Experimental Reactor (ITER) cross section. The system consists of two fanlike arrays of spectrometers and collimators positioned horizontally (20 channels) and vertically to the machine (10 channels). The devices are intended for use in both the deuterium-deuterium (D-D) (physical) and deuterium-tritium (technology) phases of ITER operation. For the D-D phase of operation, a system using NE-213 liquid scintillators and a 3He ionization chamber is proposed. A new high-performance neutron spectrometer based on recoil-proton energy measurements by means of a semiconductor detector and neutron spectrum unfolding is proposed for the technology phase.