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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
Latest News
ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
Jeffery D. Lewins
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 241-252
Technical Paper | doi.org/10.13182/FST98-A68
Articles are hosted by Taylor and Francis Online.
Charged particles traveling through a varying magnetic field are focused as by a magnetic lens. When this lens has axial symmetry, there is conservation of a generalized form of angular momentum that leads to pretty results with practical advantages. Attention is directed to such properties, which may serve as a source of problems and results in dynamics as well as an illustration of classical Hamiltonian mechanics and the significance of canonical momentum. A new treatment of the development in vector form is given together with a careful interpretation of what should be understood as an enclosing trajectory. The resulting constants of motion can usefully be employed to decrease the order of the system equations to be solved. A mathematical model suitable for class work is given to demonstrate these properties.