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Author: Tony M Qian
Requested Type: Pre-Selected Invited
Submitted: 2019-02-22 14:08:40
Co-authors: Mark Morehouse
Contact Info:
Columbia University
116th and Broadway
New York, NY 10027
United States
Abstract Text:
Consider a cylindrical device w axial Magnetic field (1-3 T) and radial Electric field (1 MV / m).
These fields are chosen to produce large ExB axis crossing ion orbits, in between PSP-2 (HIP) and Migma IV. Unlike Migma which used a single beam path (external accelerator)and suffered from low injection current, we consider a axisymmetric circumferential particle source and integral beam accelerator. We accelerate ions from the source to an axial virtual electrode. We utilize a unique but common magnetic field structure, the split solenoid with return field yoke. This results in axis crossing orbits proposed to electromagnetically trap injected ion beams.
The advantage is high energy collisions (MeV) and high confinement time (10 s) at modest density (10e-11 cc). This configuration obtains high nTt without needing to heat and confine a bulk plasma as necessary for thermonuclear fusion. The challenges are steep acceleration gradient yielding large Bremsstrahlung radiation, and susceptibility to large angle scattering loss.
We present orbits calculations (large Lamour radius, E x B), radiative loss estimates, density profile, and scattering cross sections.
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