Speaker
Keh-Fei Liu Liu
Description
See the ful Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.2005.pdf
Accelerator Based Fusion Reactor
Keh-Fei Liu1 and Alex W. Chao2
1 University of Kentucky, Lexington, Kentucky, USA
2 SLAC, Menlo Park, California, USA
A feasibility study of fusion reactors based on accelerators is carried out. We consider a novel scheme
where the beam from the accelerator hits the target plasma on the resonance of the fusion reaction to
increase reactivity and establish characteristic criteria for a workable reactor. The critical temperature of
the plasma is determined from the stopping power. The needed plasma lifetime is determined from the
width of the resonance, the beam velocity and the plasma density. We estimate the critical beam flux by
balancing the energy of fusion production against the plasma thermo-energy and the loss due to stopping
power. While the critical temperatures based on the d + t, d + He3 and p + B11 reactions turn out to be
several times lower than the corresponding ones for the thermonuclear reactors and the triple product of
plasma density, temperature and lifetime is about 50 times smaller than the Lawson criterion, the critical
flux in the range of 1021 - 1023/cm^2/s for the plasma density ρ = 1014/cm^3$ can be a challenge. The
above study is published*. We will present a follow up study on the conceptual designs of such reactors.
*Reference K. F. Liu and A. W. Chao, ``Accelerator Based Fusion Reactor,''
Nuclear Fusion 57, 084002 (2017), doi:10.1088/1741-4326/aa7642, [arXiv:1707.03043]
