Second Harmonic 527 GHz Gyrotron for DNP-NMR

被引：1
|
作者：
Jawla, Sudheer [1 ]
Mastovsky, Ivan [1 ]
Shapiro, Michael A. [1 ]
Temkin, Richard J. [1 ]
机构：
[1] MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA
来源：
2019 INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) | 2019年
关键词：
microwaves; Gyrotron; electron beam; Gaussian bean; NMR; Corrugated waveguide;
D O I：
10.1109/ivec.2019.8744878
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 have built a frequency tunable 527 GHz gyrotron for an 800 MHz DNP-NMR spectrometer. The gyrotron is designed at the second harmonic (omega=2 omega(c)) of the electron cyclotron frequency. It produces similar to 10 W continuous microwave power at 527.12 GHz frequency using a diode type electron gun (V similar to 16.5 kV, I-b similar to 110 mA). The gyrotron is tunable within similar to 0.5 GHz by combining voltage and magnetic field tuning. The gyrotron comprises an internal periscope assembly to internally convert a Gaussian beam to an HE11 mode in a 12 mm i.d. corrugated waveguide. The corrugated waveguide transmission line system is built including 3 m long 16 mm i.d. waveguide and a corrugated taper from 12 mm to 16 mm i.d. waveguide.
引用
收藏
页数：2
相关论文
共 50 条
  • [1] Second Harmonic 527-GHz Gyrotron for DNP-NMR: Design and Experimental Results
    Jawla, Sudheer K.
    Griffin, Robert G.
    Mastovsky, Ivan A.
    Shapiro, Michael A.
    Temkin, Richard J.
    IEEE TRANSACTIONS ON ELECTRON DEVICES, 2020, 67 (01) : 328 - 334
  • [2] Design of a 527 GHz gyrotron for DNP-NMR spectroscopy
    Jawla, Sudheer
    Nanni, Emilio
    Shapiro, Michael
    Mastovsky, Ivan
    Guss, William
    Temkin, Richard
    Griffin, Robert
    2011 36TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), 2011,
  • [3] Design and Experimental Results from a 527 GHz Gyrotron for DNP-NMR Spectroscopy
    Jawla, Sudheer K.
    Guss, William C.
    Shapiro, Michael A.
    Temkin, Richard J.
    2014 39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), 2014,
  • [4] Theory Analysis of Nonlinear Excitation of Second Harmonic THz Gyrotron for DNP-NMR
    Wang, Xuewei
    Xue, Qianzhong
    Zhang, Shan
    Liu, Gaofeng
    Zhao, Ding
    IEEE TRANSACTIONS ON PLASMA SCIENCE, 2020, 48 (03) : 733 - 738
  • [5] Design of a 400 GHz gyrotron for DNP-NMR spectroscopy
    Agusu, La
    Murase, H.
    Idehara, T.
    Saito, T.
    Mitsudo, S.
    Takahashi, D.
    Fujiwara, T.
    CONFERENCE DIGEST OF THE 2006 JOINT 31ST INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 14TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS, 2006, : 82 - 82
  • [6] 460 GHz Second Harmonic Gyrotrons for a 700 MHz DNP-NMR Spectroscopy
    Idehara, T.
    Tatematsu, Y.
    Yamaguchi, Y.
    Ikeda, R.
    Ogawa, I.
    Saito, T.
    Matsuki, Y.
    Ueda, K.
    Fujiwara, T.
    Toda, M.
    2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), 2013,
  • [7] The gyrotron for DNP-NMR spectroscopy: A review
    Nowak, Kacper
    BULLETIN OF THE POLISH ACADEMY OF SCIENCES-TECHNICAL SCIENCES, 2022, 70 (01)
  • [8] Design of a Vlasov mode converter of 263 GHz gyrotron oscillator for DNP-NMR
    Li, Zhiliang
    Feng, Jinjun
    JOURNAL OF ENGINEERING-JOE, 2018, (14): : 709 - 713
  • [9] Design of Interaction Cavity of a 263GHz Gyrotron Oscillator for DNP-NMR
    Li, Zhiliang
    Feng, Jimjun
    Liu, Bentian
    2018 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC), 2018, : 303 - 304
  • [10] Continuously Tunable 250 GHz Gyrotron with a Double Disk Window for DNP-NMR Spectroscopy
    Sudheer Jawla
    Qing Zhe Ni
    Alexander Barnes
    William Guss
    Eugenio Daviso
    Judith Herzfeld
    Robert Griffin
    Richard Temkin
    Journal of Infrared, Millimeter, and Terahertz Waves, 2013, 34 : 42 - 52
12345