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详细描述了HL-1M装置反磁磁通测量系统,介绍了各种杂散场的补偿方法和测试结果,以及1995和1996年有关改善能量约束实验的反磁测量结果。比较了相同放电条件下欧姆放电和此类放电的能量约束特性,发现此类放电能量约束时间明显增加,等离子体电流分布剖面发生明显变化,给出了L模能量约束时间随密度的定标关系。
Described in detail the diamagnetic flux measurement system of the HL-1M device, the compensation methods and test results of various stray fields, and the diamagnetic measurement results of 1995 and 1996 to improve the energy constraint experiment. The energy confinement characteristics of the ohmic discharge and the discharge under the same discharge conditions are compared. It is found that the confinement time of the discharge energy is obviously increased and the profile of the plasma current distribution changes obviously, and the calibration of the L-mode energy confinement time with the density is given .