...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nuclear fusion >STUDIES OF ENERGETIC CONFINED ALPHAS USING THE PELLET CHARGE EXCHANGE DIAGNOSTIC ON TFTR
【24h】

STUDIES OF ENERGETIC CONFINED ALPHAS USING THE PELLET CHARGE EXCHANGE DIAGNOSTIC ON TFTR

机译：用TFTR的颗粒电荷交换诊断含能有限的阿尔法。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Results from recent DT experiments on TFTR to measure the energy distribution and radial density profile of fast confined alphas with the use of Li pellets and neutral particle analysis are presented. When a pellet is injected into the plasma, a toroidally extended ablation cloud is formed. A small fraction of the fusion alphas incident on the cloud is converted to helium neutrals as a result of electron capture processes. The escaping energetic helium neutrals are analysed and detected by the neutral particle analyser. Radially resolved energy spectra of trapped confined alphas in 0.5-2 MeV range and radial alpha density profiles are presented in this paper. The experimental data are compared with modelling results obtained with the TRANSP Monte Carlo code and with a specially developed Fokker-Planck post-processor (FPP) that uses the alpha source distribution produced by TRANSP. Comparison of the experimental data with TRANSP and FPP shows that the alphas in the plasma core of sawtooth free discharges in TFTR are well confined and slow down classically. The energy and radial profiles distributions outside the plasma core show the influence of stochastic ripple losses on alphas. Measurements for sawtoothing plasmas show a significant outward radial transport of trapped alphas.
机译：提出了最近在TFTR上进行的DT实验的结果，该实验使用Li球团和中性粒子分析来测量快速约束α的能量分布和径向密度分布。当将颗粒注射到等离子体中时，形成了环形延伸的消融云。由于电子捕获过程，入射到云上的一小部分融合α转变为氦中性。逃逸的高能氦中性粒子由中性粒子分析仪进行分析和检测。本文介绍了在0.5-2 MeV范围内被俘获的受限α的放射分辨能谱和径向α密度分布。将实验数据与通过TRANSP蒙特卡洛代码以及使用TRANSP产生的alpha信号源分布的特殊开发的Fokker-Planck后处理器（FPP）获得的建模结果进行比较。与TRANSP和FPP进行的实验数据比较表明，TFTR中无锯齿放电的等离子体核中的α受到很好的限制，并且经典地放慢了速度。等离子体核心外部的能量分布和径向分布显示了随机纹波损耗对α的影响。锯齿状等离子体的测量结果显示，被捕获的α大量向外径向传输。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号