THE INVESTIGATION OF SUBTERAHERTZ GYROTRON FOR DNP SPECTROSCOPY IN THE IAP RAS
Cite this article as:
Zavolsky N. ., Zapevalov V. ., Moiseev М. А., Sedov . S. THE INVESTIGATION OF SUBTERAHERTZ GYROTRON FOR DNP SPECTROSCOPY IN THE IAP RAS. Izvestiya VUZ. Applied Nonlinear Dynamics, 2012, vol. 20, iss. 3, pp. 70-80. DOI: https://doi.org/10.18500/0869-6632-2012-20-3-70-80
The paper presents the results of research is carried out in the Institute of Applied Physics and is aimed at creating a CW submillimeter gyrotrons with an output power of several tens of watts. Results of experiments on the 258 GHz gyrotron at the second harmonic of the gyrofrequency are presented. In the course of experiments maximum output power of 200 W and the relative stability of the output frequency at 5 · 10−6 for the hours-long continuous operation of the gyrotron were achieved. Also the paper considers suggestions for further improvement of the gyrotrons’ characteristics of this class, including the expansion of the frequency band.
1. Bykov Yu, Eremeev A., Glyavin M., et al. // IEEE Trans. on Plasma Science. 2004. Vol. 32, No 1. P. 67.
2. Idehara T., Mitsudo S., Ui M., Ogawa I., Sato M., and Kawahata K. Development of frequency tunable gyrotrons in millimeter to submillimeter wave range for plasma diagnostics // J. Plasma Fusion Res. Series. 2000. Vol. 3 P. 407.
3. Hornstein M.K., Bajaj V.S., Griffin R.G., and Temkin R.J. Efficient low-voltage operation of a CW gyrotron oscillator at 233 GHz // IEEE Trans. on Plasma Science. Feb. 2007. Vol. 35, No 1. P. 27.
4. Nusinovich G.S. Introduction to the Physics of Gyrotrons. Baltimore–London: The Johns Hopkins University Press, 2004.
5. Зайцев Н.И., Панкратова Т.Б., Петелин М.И., Флягин В.А. // Радиотехника и электроника. 1974. Т. 19, No 5. С. 1056.
6. Griffin R.G. Dipolar recoupling in MAS spectra of biological solids // Nature Struct. Biology. 1998. Vol. 5. P. 508.
7. Венедиктов Н.П., Дубров В.В., Запевалов В.Е., Корнишин С.Ю., Котов А.В., Куфтин А.Н., Малыгин О.В., Седов А.С., Фикс А.Ш., Цалолихин В.И. Экспериментальное исследование непрерывного высокостабильного гиротрона на второй гармонике гирочастоты для спектроскопии динамически поляризованных ядер // Изв. вузов. Радиофизика. 2010. Т. 53, No 4. C. 260.
8. Zapevalov V.E., Fix A.Sh., Kopelovich E.A., Kornishin S.Yu., Kotov A.V, Kuftin A.N., Malygin O.V., Manuilov V.N., Moiseev M.A., Sedov A.S., Tsalolikhin V.I., Zavolsky N.A. Elaboration of 260 GHz Second Harmonic CW Gyrotron with High Stability of Output Parameters for DNP Spectroscopy // 35th International Conference on Infrared, Millimeter and THz Waves (IRMMW-THz 2010). Rome, Italy, 5–10 September 2010.
9. Vasyl Denysenkov, Mark J. Prandolini, Marat Gafurov, Deniz Sezer, Burkhard Endeward and Thomas F. Prisner liquid state DNP using a 260 GHz high power gyrotron// Phys. Chem. Chem. Phys., 2010DOI: 10.1039/c003697h
10. Zavolsky N.A., Zapevalov V.E. and Moiseev M.A. Numerical study of processes in the cavity of the 170 GHz gyrotron for ITER operating at the TE25,10 mode // International Journal of Infrared and Millimeter Waves. 2000. Vol. 21, No 9. P. 1381.
11. Idehara T., Shibutani K., Nojima H., Pereyaslavets M., Yoshida K., Ogawa I., Tatsukawa T. Study of electron beam misalignment in a submillimeter wave gyrotron // International Journal of Infrared and Millimeter Waves. 1998. Vol. 19, No 10. Р. 1303.
12. Нусинович Г.С. Конкуренция мод в гиромонотроне с нарушенной аксиальной симметрией // Радиотехника и электроника. 1974. Т. 19, No 8. С. 1788.
13. Tsimring Sh.E. Electron Beams and Microwave Vacuum Electronics. Inc., Hoboken, New Jersey: John Wiley & Sons, 2007.
BibTeX
author = {N. A. Zavolsky and V. E. Zapevalov and М. А. Moiseev and A. S. Sedov},
title = {THE INVESTIGATION OF SUBTERAHERTZ GYROTRON FOR DNP SPECTROSCOPY IN THE IAP RAS},
year = {2012},
journal = {Izvestiya VUZ. Applied Nonlinear Dynamics},
volume = {20},number = {3},
url = {https://old-andjournal.sgu.ru/en/articles/the-investigation-of-subterahertz-gyrotron-for-dnp-spectroscopy-in-the-iap-ras},
address = {Саратов},
language = {russian},
doi = {10.18500/0869-6632-2012-20-3-70-80},pages = {70--80},issn = {0869-6632},
keywords = {Gyrotron,terahertz waves,DNP.},
abstract = {The paper presents the results of research is carried out in the Institute of Applied Physics and is aimed at creating a CW submillimeter gyrotrons with an output power of several tens of watts. Results of experiments on the 258 GHz gyrotron at the second harmonic of the gyrofrequency are presented. In the course of experiments maximum output power of 200 W and the relative stability of the output frequency at 5 · 10−6 for the hours-long continuous operation of the gyrotron were achieved. Also the paper considers suggestions for further improvement of the gyrotrons’ characteristics of this class, including the expansion of the frequency band. }}