초록

거점센터 운영을 통해 한국의 핵융합 플라즈마 물리연구를 세계 무대에 올리는데 성공 하였고 그동안에 많은 좋은 논문들을 발표하여 세계적으로 이 분야의 이론가 및 모델러들의 관심을 불러 모았고 KSTAR를 통해 배운 물리지식을 기반으로 앞으로 한국형 DEMO 노심 플라즈마 디자인에 큰 기여가 될거라 예상 함.

(출처 : 보고서 요약서 3p)

Abstract ▼

□ Purpose & Contents
A decade long operation of ECEI and MIR　systems on KSTAR produced many new MHD and turbulence physics that were not available with the conventional diagnostic system such as dynamics of sawtooth crash, interaction between MHD and micro-turbulence. In the second phase of this

□ Purpose & Contents
A decade long operation of ECEI and MIR　systems on KSTAR produced many new MHD and turbulence physics that were not available with the conventional diagnostic system such as dynamics of sawtooth crash, interaction between MHD and micro-turbulence. In the second phase of this program. Validation of theoretical models can be performed with much tighter constraints and deficiencies in modeling and theory can be comprehensively evaluated to improve for better. Using two ECEI systems on KSTAR and WEST, MHD instabilities influenced by different wall materials (carbon and Tungsten) can be compared. This study will be beneficial for ITER and DEMO physics. In order to improve the performance of the ECEI and MIR systems and reduced the volume, new detection system design was successfully developed and used in the WEST ECEI system. RF detection system assisted the observed ELM physics and advanced data analysis technique was developed for better understanding. Theoretical assessment on flow shear physics and technology development of the plasma switching system.

□ Results
○ MHD physics (Sawtooth, NTM, ELM) and turbulence based transport physics have been studied and these are the results
- Sawtooth physics: The outstanding issue of q0 after the swtooth crash has been resolved using alternative method that involve excitation of double tearing mode sensitive to the background q0.
- NTM physics: Full scale measurement of o the dynamics of the 2/1 island, turbulence redistribution, and flow shear of the turbulence in the presence of NTM. The non-intuitive results were explained with the theoretical model based on redistribution of the potential when 2/1 island is present.
- ELM and ELM-crash suppression physics: Through the first identification of the ELM and related dynamics, the KSTAR research got world attention. New paradigm of the physics of RMP on ELM-crash suppression has been suggested through measurement of turbulence induced by RMP
- In micro-turbulence measurement with MIR, QCM specra, as a variation of TEM which is expected in ECH/CD heated plasmas　where Te/Ti ratio is large. An attempt was made to apply the shear flow physics in the measured turbulence spectra
○ The new detection system and electronics were fabricated by Korean technology within this project and the first system was built and will be used on the ECEI system for WEST where one of our former student is hired by CEA for this collaborative work.
○ Plasma swtiching system concept was tested in laboratory plasma with the pulsed gyrotron system

□ Expected Contribution
Through KSTAR and WEST ECEI systems, MHD physics results can be compared each other and the results will be beneficial for ITER operation, since the wall material of the WEST is same as that of the ITER and KSTAR will be C based. The valuable MHD data from these two devices will attract modellers from various Institutes (PPPL, LLNL, MIT, QST, etc.) around the world and be able to validate important physics of MHDs and turbulence based transport physics

(출처 : SUMMARY 5p)

목차 Contents

• 표지 ... 1
• 제 출 문 ... 2
• 보고서 요약서 ... 3
• 국문 요약문 ... 4
• SUMMARY ... 5
• 목차 ... 7
• 1. 연구 개발 과제의 개요 ... 8
• 1-1. 연구 개발 목적 ... 8
• 1-2. 연구 개발의 필요성 ... 8
• 1-3. 연구 개발 범위 ... 9
• 2. 국내외 기술 개발 현황 ... 9
• 3. 연구 수행 내용 및 결과 ... 10
• 4. 목표 달성도 및 관련 분야 기여도 ... 37
• 4-1. 목표 달성도 ... 37
• 4-2. 관련 분야 기여도 ... 39
• 5. 연구 결과의 활용 계획 ... 42
• 6. 연구 과정에서 수집한 해외 과학 기술 정보 ... 45
• 7. 연구 개발 결과의 보안 등급 ... 45
• 8. 국가과학기술종합정보시스템에 등록한 연구 시설·장비 현황 ... 45
• 9. 연구 개발 과제 수행에 따른 연구실 등의 안전 조치 이행 실적 ... 45
• 10. 연구 개발 과제의 대표적 연구 실적 ... 46
• 11. 기타 사항 ... 47
• 12. 참고 문헌 ... 47
• 끝페이지 ... 51