AbstractThe analysis of present day ICRF amplifiers and measurements carried out on TEXTOR's ICRF system have revealed that without appropriate measures these systems are prone to spurious generation of power at the second harmonic frequency (F. Durodié, M. Vervier, Generation of harmonic frequencies and their effects in present day ICRF systems. 13th Topical Conference on Applications of radio Frequency Power to Plasmas, Annapolis, Maryland, USA, 12–14 April 1999.). This could lead either to erroneous activation of the reflected power safety protection or to highly increased voltages in the (unmatched) transmission lines and antennas. It could explain why arcs are not always found at the expected voltage maxima.
要約:現在のICRF増幅器の解析と、TEXTORのICRFシステムで実施された測定により、適切な対策を講じない限り、これらのシステムは第2高調波周波数での電力のスプリアス発生を起こしやすいことが明らかになった(F. Durodié, M. Vervier, Generation of harmonic frequencies and their effects in present day ICRF systems. 13th Topical Conference on Applications of radio Frequency Power to Plasmas, Annapolis, Maryland, USA, 12–14 April 1999.)。これは、反射電力安全保護の誤作動、あるいは(インピーダンス不整合の)伝送線路およびアンテナにおける極めて高い電圧の増大のいずれかを引き起こす可能性がある。これにより、アークが必ずしも予想される電圧最大点で発生するとは限らない理由が説明され得る。