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Evolution of the radiated power profile and thermal collapse in ATF

S. Hiroe, S.F. Paul, M.A. Ochando, L.R. Baylor, A.C. England, C.H. Ma, D.A. Rasmussen, A.L. Qualls, J.B. Wilgen1992年被引用 7Nuclear FusionIF 3出版社

Thermal plasma collapses have been observed in the Advanced Toroidal Facility (ATF) and in some cases these collapses limit the plasma performance. A 15-channel bolometer array has been used to measure the radiated power profile. It has been found that thermal collapses, defined by a drop in the plasma stored energy, occur when the local radiated power exceeds the local power input to the electrons. The local radiated power at the collapse first increases at the edge and then begins to propagate inward, leading to a peaking of the radiated power profile. This finding indicates that additional central heating would be effective in preventing the thermal collapse

日本語訳

熱的プラズマ崩壊は、先進トロイダル装置(ATF)で観測されており、場合によってはこれらの崩壊がプラズマ性能を制限する。15チャンネルのボロメータアレイを用いて、放射パワー分布を測定した。プラズマ蓄積エネルギーの低下によって定義される熱的崩壊は、局所的な放射パワーが電子への局所的な入力パワーを超えると発生することが分かった。崩壊時の局所放射パワーは、最初に周辺部で増加し、その後内側へ伝播し始め、放射パワー分布のピーキングを引き起こす。この発見は、追加の中心加熱が熱的崩壊の防止に有効であることを示している。

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