Lower hybrid wave heating in the Octopole tokamak

Abstract
Electron heating (ΔTe/Te≤30%, Δne/ne≤100%) was produced in tokamak-like discharges (ne = 2 × 1011 cm−3, Te 15 eV, ) in the General Atomic Octopole by application of lower hybrid wave power. The heating efficiency was 50% for v/vT = 1.7 and 17% for v/vT = 3.4.