An ultrahigh-bandwidth Phase Contrast Imaging system for fusion plasmas

被引：2
|
作者：
Marinoni, A. [1 ]
Rost, J. C. [1 ]
Porkolab, M. [1 ]
Seraydarian, R. [1 ]
机构：
[1] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA
来源：
JOURNAL OF INSTRUMENTATION | 2022年 / 17卷 / 06期
关键词：
Plasma diagnostics - interferometry; spectroscopy and imaging; Nuclear instruments and methods for hot plasma diagnostics; INTERFEROMETER;
D O I：
10.1088/1748-0221/17/06/C06011
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A novel Phase Contrast Imaging system that uses probing light in the near infrared region has been developed to image electron density fluctuations in fusion plasmas. As compared to standard systems operating in the mid infra-red region, the spectral response of the system is extended in wave-number and frequency response by 7 and 100 times, respectively. The internal structure of turbulence and radio-frequency waves is therefore accessible across an unprecedented wavelength and frequency range, extending into the electron gyro-radius scale and the GHz frequency region.
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页数：9
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