CW second harmonic results at 460 GHz of a gyrotron oscillator - for sensitivity enhanced NMR

被引：0

作者：

Hornstein, MK ^{[1
]}

Bajaj, VS ^{[1
]}

Kreischer, KE ^{[1
]}

Griffin, RG ^{[1
]}

Temkin, RJ ^{[1
]}

机构：

[1] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA

来源：

IRMMW-THz2005: The Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, Vols 1 and 2 | 2005年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report 460 and 233 GHz CW results of a gyrotron operating at the second electron cyclotron harmonic and fundamental, respectively. A record CW power level of over 8 W has been obtained at 460 GHz in the TE0,6 mode with 12.4 kV and 135 mA. The gyrotron has operated under computer control for over an hour with stable power output of better than 1%. Fundamental CW studies at 233 GHz in the TE2,3 mode reveal that oscillations start with less than 7 W of beam power below 3.5 kV. The gyrotron will extend sensitivity-enhanced NMR through dynamic nuclear polarization to the highest field ever used, 16.5 T (700 MHz H-1).

引用

页码：437 / 438

页数：2

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