Fusion alpha parameters in tokamaks with high DT fusion rates

Fusion alpha parameters are calculated for tokamaks with high DT fusion rates using the TRANSP plasma analysis code. Parameters include the fast alpha density n α , fast alpha pressure normalized to magnetic field energy β α , and its normalized gradient − R × ∇(β α ). The plasma conditions are taken from the plasmas in TFTR and JET with the highest DT fusion rates, and from plasmas in the proposed IGNITOR, FIRE, and ITER-FEAT tokamaks.