A Monte Carlo investigation of the high power fundamental minority (D)T ICAF heating in JET is undertaken. The effects of the minority ion concentration, the location of the resonance layer, the symmetry of the wave field spectrum, the background ion temperature and the α-particle absorption of the ICRF power on the fusion yield are assessed in a projected reference discharge (ne(0) = 1020 m-3, Te(0) = 12 keV, Ti(0) = 10 keV, Prf = 25 MW, (PD + Pα)abs/Prf = 80%). Even with nD/ne approximately 30%, which is needed for high fusion yield, the finite orbit width and its related transport processes, such as the banana drift, and the RF induced diffusion and drift, are important and strongly reduce the attainable yield. However, as here the transferred power goes primarily to background ions, the increased target triton temperature can significantly improve the yield, and achieving Q( = Pfus/Prf) = 1 in JET would appear to be feasible. The use of the asymmetric wave field spectrum improves the confinement of the resonating ions and is shown to substantially enhance the yield and to extend the duration of its peak value. This effect, if also applied to tritons. could delay the characteristic deterioration of the peaked density profiles during the pellet enhanced performance modes, alpha -particle absorption of the RF power is found to be very small
JETにおける高出力 fundamental minority (D)T ICAF加熱のMonte Carlo調査が行われる。minority ion concentration、resonance layerの位置、wave field spectrumの対称性、background ion temperature、およびICRF powerのα-particle absorptionが、projected reference discharge (ne(0) = 1020 m-3, Te(0) = 12 keV, Ti(0) = 10 keV, Prf = 25 MW, (PD + Pα)abs/Prf = 80%)におけるfusion yieldに及ぼす影響が評価される。高いfusion yieldに必要なnD/neが約30%であっても、finite orbit widthとその関連するtransport processes、例えばbanana drift、およびRF induced diffusionとdriftは重要であり、達成可能なyieldを強く減少させる。しかしながら、ここではtransferred powerが主にbackground ionsに与えられるため、増加したtarget triton temperatureはyieldを有意に改善でき、JETにおけるQ( = Pfus/Prf) = 1の達成は実現可能と思われる。asymmetric wave field spectrumの使用はresonating ionsの閉じ込めを改善し、yieldを大幅に増強し、そのpeak valueの持続時間を延長することが示される。この効果は、もしtritonsにも適用されれば、pellet enhanced performance modes中のpeaked density profilesの特徴的な劣化を遅延させる可能性がある。RF powerのalpha -particle absorptionは非常に小さいことが見出される。