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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Nuclear Science and Engineering
March 2025
Nuclear Technology
Fusion Science and Technology
February 2025
Latest News
WEST claims latest plasma confinement record
The French magnetic confinement fusion tokamak known as WEST maintained a plasma in February for more than 22 minutes—1,337 seconds, to be precise—and “smashed” the previous record plasma duration for a tokamak with a 25 percent improvement, according to the CEA, which operates the machine. The previous 1,006-second record was set by China’s EAST just a few weeks prior. Records are made to be broken, but this rapid progress illustrates a collective, global increase in plasma confinement expertise, aided by tungsten in key components.
W. M. Wilson, H. E. Jackson, G. E. Thomas
Nuclear Science and Engineering | Volume 63 | Number 1 | May 1977 | Pages 55-62
Technical Paper | doi.org/10.13182/NSE77-A27004
Articles are hosted by Taylor and Francis Online.
The gamma-ray spectrum resulting from neutron capture in the 2.8-keV resonance of 23Na has been measured with the high-resolution annihilation pair spectrometer at the internal-target facility of the CP-5 reactor. The 2.8-keV resonance was populated by using the boron-shielded target technique: A½-in.-thick filter of 10B surrounding the sodium sample selectively removes low-energy neutrons from the spectrum; the 1/E dependence of the incident neutron flux assures a low intensity of high-energy neutrons. Capture, predominantly in the 2.8-keV resonance, is indicated by a 2- to 3-keV shift in the energies of the primary transitions relative to those observed in thermal-neutron capture. The correlation between the absolute intensities of the resonance transitions and the thermal transitions (measured by others) is computed and discussed in terms of a numerical analysis. (The resonance and thermal intensities are identical within the precision of the measurement.) The results indicate that the resonance total radiation width is 0.24 eV Γγ 0.40 eV.
