First results of collective Thomson scattering diagnostic of fast ions at the GDT open magnetic trap

被引：4
|
作者：
Shalashov, A. G. [1 ,2 ]
Gospodchikov, E. D. [1 ]
Khusainov, T. A. [1 ]
Lubyako, L. V. [1 ]
Solomakhin, A. L. [1 ,3 ]
Yakovlev, D. V. [1 ,3 ]
机构：
[1] Russian Acad Sci, Inst Appl Phys, 46 Ulyanov Str, Nizhnii Novgorod 603950, Russia
[2] Lobachevsky State Univ Nizhny Novgorod, 23 Gagarin Ave, Nizhnii Novgorod 603950, Russia
[3] Budker Inst Nucl Phys, 11 Lavrentieva Ave, Novosibirsk 630090, Russia
来源：
PHYSICS OF PLASMAS | 2022年 / 29卷 / 08期
基金：
俄罗斯科学基金会;
关键词：
FUSION;
D O I：
10.1063/5.0101751
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Fast-ion diagnostic based on measuring of the collective Thomson scattering of high-power gyrotron radiation has been developed for the gasdynamic trap facility in Budker Institute during the last 3 years. This diagnostic is aimed at reconstruction of ion distributions over transverse and longitudinal velocities driven in the plasma core by strong neutral beam injection. Here, we present the first experimental results which may be interpreted as the expected scattering signal from fast ions. The detected spectra with the effective noise temperature of about 100 eV detuned in a particular frequency range of 100-300 MHz from the probe gyrotron frequency are compatible with the early theoretical predictions. Published under an exclusive license by AIP Publishing.
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页数：6
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