Optimized quasi-optical cross-polarization scattering system for the measurement of magnetic turbulence on the DIII-D tokamak

被引：11

作者：

Rhodes, T. L. ^{[1
]}

Lantsov, R. ^{[1
]}

Wang, G. ^{[1
]}

Ellis, R. ^{[2
]}

Peebles, W. A. ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Phys & Astron Dept, Los Angeles, CA 90098 USA

[2] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2018年 / 89卷 / 10期

关键词：

DOPPLER REFLECTOMETRY; MICROWAVE-SCATTERING; TORE-SUPRA; FLUCTUATIONS; PLASMA; DENSITY; VELOCITY; WAVES; FIELD;

D O I：

10.1063/1.5035427

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Simulations and laboratory tests are used to design and optimize a quasi-optical system for crosspolarization scattering (CPS) measurements of magnetic turbulence on the DIII-D tokamak. The CPS technique uses a process where magnetic turbulence scatters electromagnetic radiation into the perpendicular polarization enabling a local measurement of the perturbing magnetic fluctuations. This is a challenging measurement that addresses the contribution of magnetic turbulence to anomalous thermal transport in fusion research relevant plasmas. The goal of the new quasi-optical design is to demonstrate the full spatial and wavenumber capabilities of the CPS diagnostic. The approach used consists of independently controlled and in vacuo aiming systems for the probe and scattered beams (55-75 GHz). Published by AIP Publishing.

引用

页数：5

共 22 条

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