Advanced scenarios for ITER operation

ITER-FEAT Operation

ITER is planned to be the first fusion experimental reactor in the world operating for research in physics and engineering. The first 10 years’ operation will be devoted primarily to physics issues at low neutron fluence and the following 10 years’ operation to engineering testing at higher fluence. ITER can accommodate various plasma configurations and plasma operation modes such as inductive ...

Control of advanced scenarios for steady-state tokamak operation

Alfvénic Instabilities Driven by Alpha Particles in ITER Scenarios

Abstract. The stability of proposed ITER scenarios with respect to Alfvénic instabilities driven by fusionproduced alpha particles is investigated by hybrid MHD-particle simulations. Three cases are considered: the monotonic safety-factor scenario (SC2), the reversed-shear one (SC4) and a flat safety-factor profile “hybrid” scenario (SCH). Though all the cases are found unstable, growth rates a...

Analysis of Disruption Scenarios and Their Possible Mitigation in ITER

Database analyses have been carried out to derive physics guidelines for the shortest current quench time and their waveforms as well as the product of halo fraction with toroidal peaking factor arising from disruptions in ITER. Several representative disruption scenarios are specified. Disruption simulations with the DINA code and electromagnetic load (EM) analyses with 3D finite element metho...

Demonstration of ITER Operational Scenarios on DIII - D

The DIII-D program has recently initiated an effort to provide suitably scaled experimental evaluations of four primary ITER operational scenarios. New and unique features of this work are that the plasmas incorporate essential features of the ITER scenarios and anticipated operating characteristics; e.g., the plasma cross-section, aspect ratio and value of I/aB of the DIII-D discharges match t...