OBSERVATION OF TRANSPORT TO THERMAL-EQUILIBRIUM IN PURE ELECTRON PLASMAS
OBSERVATION OF TRANSPORT TO THERMAL-EQUILIBRIUM IN PURE ELECTRON PLASMAS
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DOI：
10.1103/physrevlett.60.1290
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发表时间：
1988-03-28
影响因子：
8.6
通讯作者：
FINE, KS
中科院分区：
文献类型：
--
作者：
DRISCOLL, CF;MALMBERG, JH;FINE, KS
最近观察到磁约束纯电子等离子体向全局热平衡的传输。在平衡状态下，E×B 和根据测量的温度和密度分布计算出的抗磁漂移相结合，给出了刚性旋转（即，< v θ>= ωr），如预期的那样。然而，密度分布松弛达到平衡的速度比玻尔兹曼输运理论预测的快 5000 倍：在十年的磁场范围内，密度平衡时间始终小于预测，并且按 B 1 而不是 B 4 缩放。
Transport of magnetically confined pure electron plasmas to global thermal equilibrium has recently been observed. In equilibrium, the E× B and diamagnetic drifts calculated from the measured temperature and density profiles combine to give rigid rotation (ie,< v θ>= ωr), as expected. However, the density profile relaxes towards equilibrium up to 5000 times faster than predicted by Boltzmann transport theory: Over a decade range of magnetic field, the density equilibration time is always less than predicted, and scales as B 1 rather than as B 4.