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首页> 外文期刊>Plasma physics and controlled fusion >First absolute measurements of fast-ion losses in the ASDEX Upgrade tokamak
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First absolute measurements of fast-ion losses in the ASDEX Upgrade tokamak

机译：Asdex升级到Kamak中的快速离子损失的首先绝对测量

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摘要

A new diagnostic technique that allows to obtain absolute fluxes of fast-ion losses measured with absolutely calibrated scintillator based fast-ion loss detectors (FILD) is presented here. First absolute fluxes of fast-ion losses have been obtained in the ASDEX Upgrade tokamak. An instrument function that includes the scintillator efficiency, collimator geometry, optical transmission and camera efficiency has been constructed. The scintillator response to deuterium ions in the relevant energy range of fast-ions has been characterized using a tandem accelerator. Absolute flux of neutral beam injection (NBI) prompt losses has been obtained in magnetohydrodynamic quiescent plasmas. The temporal evolution of the heat load measured with FILD follows that measured at the FILD entrance obtained with an Infra-Red camera looking at the FILD detector head. ASCOT simulations are in good agreement with the absolute heat load of NBI prompt losses measured with FILD.
机译：本文介绍了一种新的诊断技术，该技术可以获得用绝对校准的闪烁体快离子损失探测器（FILD）测量的快离子损失的绝对通量。在ASDEX升级托卡马克中首次获得了快离子损失的绝对通量。构建了包括闪烁体效率、准直器几何结构、光学传输和相机效率的仪器功能。在快离子的相关能量范围内，闪烁体对氘离子的响应已经用串列加速器进行了表征。在磁流体动力学静态等离子体中获得了中性束注入（NBI）瞬发损耗的绝对通量。FILD测得的热负荷的时间演变与FILD入口处测得的热负荷的时间演变一致，后者是通过观察FILD探测头的红外摄像机获得的。ASCOT模拟与FILD测量的NBI瞬时损失的绝对热负荷非常一致。

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