Design of 132 GHz gyrotron with 3 GHz tunability for 200 MHz DNP/NMR spectrometer

被引：12

作者：

Kumar, Nitin ^{[1
]}

Singh, Udaybir ^{[1
]}

Sinha, Ashok Kumar ^{[1
]}

机构：

[1] Cent Elect Engn Res Inst, CSIR, Gyrotron Lab, MWT Area, Pilani 333031, Rajasthan, India

来源：

INFRARED PHYSICS & TECHNOLOGY | 2015年 / 68卷

关键词：

Gyrotron; Sub-THz; THz; DNP; NMR spectroscopy; DYNAMIC NUCLEAR-POLARIZATION; OPERATION; TERAHERTZ;

D O I：

10.1016/j.infrared.2014.11.001

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A complete design of 132 GHz gyrotron for 200 MHz DNP-NMR spectroscopy application is presented in this article. The design is performed considering a frequency tunability range of 3 GHz and output power around 100 W. A smooth frequency tunability is achieved via the excitation of TE03p modes (p = 1-6) through the variation of cavity magnetic field. The start oscillation current calculation is performed to estimate the required magnetic field for each TE03p mode. Cold cavity analysis and beam-wave interaction computation are carried out for the estimation of quality factor, resonant frequency corresponding to each TE03p mode, axial electric field profile and output power. Other important components of gyrotron such as magnetron injection gun, non-linear taper and RF window are also designed considering the smooth frequency tunability a main design parameter. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：44 / 51

页数：8

共 50 条

[1] Triode magnetron injection gun for 132GHz gyrotron for 200MHz DNP-NMR application
Kumar, N. (nitingkv@gmail.com), 1600, Electromagnetics Academy (45):
[2] 200 MHz DNP NMR spectroscopy with a 131 GHz gyrotron for the analysis of polymer surface
Horii, F.
Idehara, T.
Fujii, Y.
Ogawa, I.
Horii, A.
Entzminger, G.
Doty, F. D.
2011 36TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), 2011,
[3] 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
[4] 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,
[5] Development of 394.6 GHz CW gyrotron (Gyrotron FUCWII) for DNP/proton-NMR at 600 MHz
Idehara, T.
Ogawa, I.
Agusu, La
Kanemaki, T.
Mitsudo, S.
Saito, T.
Fujiwara, T.
Takahashi, H.
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 2007, 28 (06): : 433 - 442
[6] A 140 GHz pulsed EPR/212 MHz NMR spectrometer for DNP studies
Smith, Albert A.
Corzilius, Bjoern
Bryant, Jeffrey A.
DeRocher, Ronald
Woskov, Paul P.
Temkin, Richard J.
Griffin, Robert G.
JOURNAL OF MAGNETIC RESONANCE, 2012, 223 : 170 - 179
[7] Design of a 394.6 GHz Compact Gyrotron FU CW CI for 600 MHz DNP-NMR Spectroscopy
Mudiganti, J. C.
Idehara, T.
Tatematsu, Y.
Ikeda, R.
Yamaguchi, Y.
Saito, T.
Ogawa, I.
Mitsudo, S.
Fujiwara, T.
Matsuki, Y.
Ueda, K.
2011 36TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), 2011,
[8] Development of 394.6 GHz CW Gyrotron (Gyrotron FU CW II) for DNP/Proton-NMR at 600 MHz
T. Idehara
I. Ogawa
La Agusu
T. Kanemaki
S. Mitsudo
T. Saito
T. Fujiwara
H. Takahashi
International Journal of Infrared and Millimeter Waves, 2007, 28 : 433 - 442
[9] Second Harmonic 527 GHz Gyrotron for DNP-NMR
Jawla, Sudheer
Mastovsky, Ivan
Shapiro, Michael A.
Temkin, Richard J.
2019 INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC), 2019,
[10] 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,

← 1 2 3 4 5 →