Physics design of the HL-1M tokamak

Presented is the physics design of the HL-1M tokamak, which is a machine upgraded from the HL-1 tokamak. Based upon the intensive investigations on the controlled nuclear fusion research in the world, the direction for modifying the HL-1 tokamak was determined, i.e. reconstructing the vacuum chamber without the thick copper shell which is used as an outer vacuum vessel in HL-1, reforming the poloidal magnetic field system and upgrading the power supply so as to be suitable for performing experimental study on high power auxiliary heating and non-inductive current drive. The main physics objectives of HL-1M is to carry out investigations on MWs power auxiliary heating and current drive with lower hybrid wave. Besides this, the other physics objectives are as follows: to perform further experimental study on the ohmic heating plasma with higher parameters so that a database for extrapolating to a larger tokamak device could be obtained, and to accumulate experiences for the construction of next tokamak device, HL-2. By using the extrapolation of the HL1 experiment results, the tokamak scaling law and numerical computation, the physics parameters of ohmic heating and auxiliary heating plasmas are designed in some details