Studies of the low-energy neutral behavior using the low-energy neutral particle analyzer on EAST

Studies of the low-energy neutral behavior using the low-energy neutral particle analyzer on EAST
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使用 EAST 上的低能中性粒子分析仪研究低能中性行为

DOI:
10.1016/j.nme.2022.101258
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发表时间:
2022-09
影响因子:
2.6
通讯作者:
J.L. Chen
J.L. Chen
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
N.X. Liu;R. Ding;L. Mu;R. Yan;J. Peng;B.F. Gao;Y. Zhang;K.X. Ye;T. Zhang;Y.F. Jin;J.L. Chen

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在2021年EAST夏季活动中,使用低能中性粒子分析仪(LENPA)测量了能量范围为20-3000 eV的中性能谱。LENPA测量的低于1000 eV的中性粒子的比例大于85%。在欧姆放电中,积分中性通量随线平均密度的增加而增加。然而,具有较高能量(1000-3000 eV)的神经粒子对线平均密度不敏感。另外,在20-1000 eV能量范围内,超声分子束注入放电的中性粒子通量低于无超声分子束注入放电,这与1000-3000 eV能量范围内的中性粒子通量不同。在所有能量范围内,中性通量随辅助加热功率的增大而增大。与欧姆放电相比,辅助加热放电中中性粒子的平均能量显著增加。
The neutral energy spectrums with an energy range of 20–3000 eV was measured by the low energy neutral particle analyzer (LENPA) in the 2021 EAST summer campaign. The proportion of the neutral particles below 1000 eV measured by LENPA is more than 85 %. In the ohmic discharges, the integrated neutral flux increases with increasing the line-averaged density. However, the neural particles with higher energy (1000–3000 eV) are insensitive to the line-averaged density. In addition, the neutral flux in the energy range of 20–1000 eV of the discharges with supersonic molecular beam injection (SMBI) was lower than those without SMBI, which was different from neutrals in the range of 1000–3000 eV. The neutral flux increases with higher auxiliary heating power in all energy range. Compared to the ohmic discharges, the mean energy of neutral particles in auxiliary heated discharges is increased significantly.
DOI: 10.1063/1.5038936
发表时间: 2018-10
期刊: The Review of scientific instruments
影响因子: --
作者:
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DOI: 10.1088/0029-5515/55/2/023013
发表时间: 2015-02
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影响因子: 3.3
作者:
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发表时间: 2013-10
影响因子: 2.2
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