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Dataset from HL-2A

The HL-2A tokamak has achieved significant advancements in plasma parameters, following hardware improvements. Stable and reproducible discharges with a divertor configuration have been successfully obtained through reliable feedback control and wall conditioning techniques. Key plasma parameters include a magnetic field strength (BT) of 2.8 T, plasma current (IP) of 480 kA, and a plasma density of 6.0 x 10^19 m^-3. A variety of heating and fuelling systems have been deployed, showcasing the efficacy of comprehensive diagnostics developed for enhanced auxiliary heating and current drive.

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Dataset from HL-2A

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  1. HL-2A dataset12th ITPA meeting, May 7-10, Lausanne Dataset from HL-2A Presented by Z. CUI (崔 正英） In collaboration with C. DONG and O.J.W.F.KARDAUN

  2. Status of HL-2A Tokamak • Plasma parameters of HL-2A tokamak have been increased significantly with the improvement of the hardware • The stable and reproducible discharges with divertor configuration have been obtained by reliable feedback control and wall conditioning techniques. • BT: 2.8 T 2.7 T • IP: 480 kA 430 kA • Duration: 3.0 s • Plasma density: 6.0 x 1019 m-3 • Electron temperature: ~5 keV • Ion temperature: >1 keV • Fuelling system: GP, SMBI, PI • Heating sys.: ECRH, LHCD, NBI

  3. Dataset from HL-2A Time Slices of Ohmic Discharges: ～82 • 100kA < Ip < 300kA, • 0.4 ×1013 cm-3 < ne < 6. ×1013 cm-3 • 1.5 T < BT < 2.4 T L-mode: ～ 98

  4. Taue (s) ne 1013 cm-3

  5. Thank you !

  6. SMBIPellet Injection Diagnostic systems 1.5MW/50keV/2s/NBI system ECE CXRS 2*500kW /1s /68GHz ECRH/CD 8-Channel HCN interferometer MW reflectometer Thomson Scattering VUV spectrometer Bolometer & Soft X ray arrays 2*500kW /1S /2.45GHz/ LHCD system SDD soft X ray spectrum Fast reciprocating probes Neutral Particle Analyzer 2*500kW/1s /68GHz ECRH/CD More than 30 kinds of Diagnostics developed

  7. Auxiliary Heating & Current Drive The red values are for the first phase

  8. Discharge Parameter Progress • Ip=433 kA, Bt=2.7 T, • ne = 6 1019 m-3 • Te=5 keV • 23 divertor discharges with good reproducibility

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