TY - GEN
T1 - Effect of nuclear elastic scattering on ion heating in thermonuclear plasmas
AU - Matsuura, Hideaki
AU - Nakao, Y.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Distortion in the fuel-ion (deuteron and triton) velocity distribution functions due to nuclear elastic scattering (NES) by beam ion and a-particle during neutral-beam-injection (NBI) plasma heating operation is studied by simultaneously solving the Boltzmann-Fokker-Planck (BFP) equations for deuteron, triton, α-particle and beam ion in the deuterium-tritium (DT) thermonuclear plasmas. Using the obtained distribution functions, enhancement in the T(d,n)4He fusion reaction rate coefficient between background deuteron and triton are estimated. It is shown that the enhancement in the T(d,n)4He reaction rate coefficient becomes appreciable in low-density operations, i.e. ne ≤ 5×1019m -3.
AB - Distortion in the fuel-ion (deuteron and triton) velocity distribution functions due to nuclear elastic scattering (NES) by beam ion and a-particle during neutral-beam-injection (NBI) plasma heating operation is studied by simultaneously solving the Boltzmann-Fokker-Planck (BFP) equations for deuteron, triton, α-particle and beam ion in the deuterium-tritium (DT) thermonuclear plasmas. Using the obtained distribution functions, enhancement in the T(d,n)4He fusion reaction rate coefficient between background deuteron and triton are estimated. It is shown that the enhancement in the T(d,n)4He reaction rate coefficient becomes appreciable in low-density operations, i.e. ne ≤ 5×1019m -3.
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U2 - 10.1109/FUSION.2005.252979
DO - 10.1109/FUSION.2005.252979
M3 - Conference contribution
SN - 142440150X
SN - 9781424401505
T3 - Proceedings - Symposium on Fusion Engineering
BT - 21st IEEE/NPS Symposium on Fusion Engineering, SOFE'05
T2 - 21st IEEE/NPS Symposium on Fusion Engineering, SOFE'05
Y2 - 26 September 2005 through 29 September 2005
ER -