Three campaigns, prior to July 1994, attempted to increase the fusion power in DT plasmas on the Tokamak Fusion Test Reactor (TFTR). The first campaign was dedicated to obtaining >5 MW of fusion power while avoiding MHD events similar to the JET X-event. The second was aimed at producing maximum fusion power irrespective of proximity to MHD limits, and achieved 9 MW limited by a disruption. The third campaign increased the energy confinement time using lithium pellet conditioning while raising the ratio of alpha heating to beam heating.
1994年7月以前，托卡马克聚变试验反应堆（TFTR）上开展了三次旨在提高氘氚（DT）等离子体聚变功率的实验活动。第一次活动致力于在避免类似JET的X事件那样的磁流体动力学（MHD）事件的前提下，获得大于5 MW的聚变功率。第二次活动旨在不考虑与MHD极限的接近程度，力求产生最大聚变功率，最终实现了受破裂限制的9 MW功率。第三次活动通过锂丸调节延长了能量约束时间，同时提高了α粒子加热相对于束加热的比例。