Abstract
A transport theory for energetic fusion born alpha particles in tokamaks with broken symmetry has been developed. The theory is a generalization of the theory for neoclassical toroidal plasma viscosity for thermal particles in tokamaks. It is shown that the radial energy transport rate can be comparable to the slowing down rate for energetic alpha particles when the ratio of the typical magnitude of the perturbed magnetic field strength to that of the equilibrium magnetic field strength is of the order of 10-4 or larger. This imposes a constraint on the magnitude of the error fields in thermonuclear fusion reactors. The implications on stellarators as potential fusion reactors are also discussed.
| Original language | English |
|---|---|
| Article number | 033012 |
| Journal | Nuclear Fusion |
| Volume | 54 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2014 Mar 1 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Condensed Matter Physics
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Transport theory for energetic alpha particles and tolerable magnitude of error fields in tokamaks with broken symmetry. / Shaing, Ker-Chung; Hsu, C. T.
In: Nuclear Fusion, Vol. 54, No. 3, 033012, 01.03.2014.Research output: Contribution to journal › Article
TY - JOUR
T1 - Transport theory for energetic alpha particles and tolerable magnitude of error fields in tokamaks with broken symmetry
AU - Shaing, Ker-Chung
AU - Hsu, C. T.
PY - 2014/3/1
Y1 - 2014/3/1
N2 - A transport theory for energetic fusion born alpha particles in tokamaks with broken symmetry has been developed. The theory is a generalization of the theory for neoclassical toroidal plasma viscosity for thermal particles in tokamaks. It is shown that the radial energy transport rate can be comparable to the slowing down rate for energetic alpha particles when the ratio of the typical magnitude of the perturbed magnetic field strength to that of the equilibrium magnetic field strength is of the order of 10-4 or larger. This imposes a constraint on the magnitude of the error fields in thermonuclear fusion reactors. The implications on stellarators as potential fusion reactors are also discussed.
AB - A transport theory for energetic fusion born alpha particles in tokamaks with broken symmetry has been developed. The theory is a generalization of the theory for neoclassical toroidal plasma viscosity for thermal particles in tokamaks. It is shown that the radial energy transport rate can be comparable to the slowing down rate for energetic alpha particles when the ratio of the typical magnitude of the perturbed magnetic field strength to that of the equilibrium magnetic field strength is of the order of 10-4 or larger. This imposes a constraint on the magnitude of the error fields in thermonuclear fusion reactors. The implications on stellarators as potential fusion reactors are also discussed.
UR - http://www.scopus.com/inward/record.url?scp=84894783725&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84894783725&partnerID=8YFLogxK
U2 - 10.1088/0029-5515/54/3/033012
DO - 10.1088/0029-5515/54/3/033012
M3 - Article
AN - SCOPUS:84894783725
VL - 54
JO - Nuclear Fusion
JF - Nuclear Fusion
SN - 0029-5515
IS - 3
M1 - 033012
ER -