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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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.
R. R. Spencer, H. Beer
Nuclear Science and Engineering | Volume 60 | Number 4 | August 1976 | Pages 390-398
Technical Paper | doi.org/10.13182/NSE76-A26900
Articles are hosted by Taylor and Francis Online.
The neutron capture cross section of 59Co has been measured in the energy range from 6 to 200 keV using an 800-ℓ liquid-scintillator detector in conjunction with a pulsed 3-MV Van de Graaff generator as a neutron source. The excellent time resolution of the system, full width of 2.8 nsec at half maximum, permitted derivation of radiation widths for single s-wave resonances to 50-keV neutron energy. Average radiation widths of 0.564 ± 0.024 eVand 0.486 ± 0.016 eV were found for seven J = 3 resonances and ten J = 4 resonances, respectively. No significant correlation between and Γy was found for either spin state. The Maxwellian-averaged cross section for kT = 30 keV was found to be 38 mb over the region from 0.0253-eV to 200-keV neutron energy.