Reversed shear Alfvén eigenmode (RSAE) activity in DIII-D is stabilized by electron cyclotron heating (ECH) applied near the minimum of the magnetic safety factor (qmin) in neutral beam heated discharges with reversed-magnetic shear. The degree of RSAE stabilization, fast ion density and the volume averaged neutron production (Sn) are highly dependent on ECH deposition location relative to qmin. While discharges with ECH stabilization of RSAEs have higher Sn and more peaked fast ion profiles than discharges with significant RSAE activity, neutron production remains strongly reduced (up to 60% relative to TRANSP predictions assuming classical fast ion transport) even when RSAEs are stabilized.
DIII-D中反向剪切阿尔芬本征模（RSAE）活动通过施加在最小安全因子（qmin）附近的电子回旋加热（ECH）得到稳定，这些放电具有反向剪切磁场位形且由中性束加热。RSAE的稳定程度、快离子密度以及体积平均中子产额（Sn）高度依赖于ECH沉积位置相对于qmin的位置。尽管在RSAE被稳定的放电中，Sn更高且快离子分布更集中，与具有显著RSAE活动的放电相比，中子产额仍然大幅降低（相对于假设经典快离子输运的TRANSP预测，最多降低60%），即使RSAE已被稳定。