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Coming up: The 4th annual ARCSC workshop
The 4th Annual Advanced Reactor Codes and Standards Collaborative (ARCSC) Workshop will take place on December 4 from 9:00 a.m. to 5:00 p.m. (EST). The event, which will be hosted at the Electric Power Research Institute’s office Washington, D.C., has a hybrid format, offering the opportunity for both in-person and virtual attendance. It’s focus is on sharing the ARCSC’s progress on developing codes and standards to support advanced reactor development and will also feature industry-focused breakout discussions, conversations with industry leaders, and more.
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V. Ya. Goloborod'ko, Ya. I. Kolesnichenko, S. N. Reznik, V. A. Yavorskij
Fusion Science and Technology | Volume 25 | Number 3 | May 1994 | Pages 249-257
Technical Paper | Alpha-Particle Special / Plasma Engineering | doi.org/10.13182/FST94-A30281
Articles are hosted by Taylor and Francis Online.
A kinetic equation is derived for the neoclassical distribution function of alpha particles with orbits intersecting or approaching the magnetic axis of a tokamak. This equation takes into account both the collisional slowing down and the pitch-angle scattering of alpha particles. An equation with a simplified pitchangle scattering term is solved analytically, and the distribution function obtained is used to find the alpha-particle bootstrap current at the magnetic axis. It is shown that the pitch-angle scattering leads to an alpha-particle current in the near-axis region that is larger than the one predicted from early neoclassical theory, which allows only for the slowing down of alpha particles.