Characteristics and applications of fast-wave gyrodevices

Proceedings of the IEEE

Volumn 87, Issue 5, 1999, Pages 752-781

  Felch, Kevin L ^a   Danly, Bruch G ^b   Jory, Howard R ^a   Kreischer, Kenneth E ^c   Lawson, Wes ^d   Levush, Baruch ^b   Temkin, Richard J ^c  

^a Communications and Power Industries ^*  (United States)

^b NAVAL RESEARCH LABORATORY   (United States)

^c MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

^d UNIVERSITY OF MARYLAND   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CYCLOTRON RESONANCE; MICROWAVE AMPLIFIERS; MICROWAVE OSCILLATORS; MILLIMETER WAVE DEVICES; PLASMA HEATING; RADAR; SUPERCONDUCTING MAGNETS;

MILLIMETER WAVE AMPLIFIERS; MILLIMETER WAVE RADAR;

GYROTRONS;

EID: 0032629813     PISSN: 00189219     EISSN: None     Source Type: Journal    
DOI: 10.1109/5.757254     Document Type: Article

References (191)

1. A. V. Gaponov, M. I. Petelin, and V. K. Yulpatov, "The induced radiation of excited classical oscillators and its use in high-frequency electronics," Radiophys. Quantum Electron., vol. 10, no. 9-10, pp. 794-813, 1967.
2. J. Feinstein and K. Felch, "Status review of research on millimeter-wave tubes," IEEE Trans. Electron Devices, vol. ED-34, pp. 461-467, Feb. 1987.
3. G. S. Nusmovich, T. M. Antonsen, Jr., V. L; Bratman, and N. S. Ginzburg, "Principles and capabilities of high-power microwave generators," in Applications of High-Power Microwaves, A. V. Gaponov-Grekhov and V. L. Granatstein, Eds. Norwood, MA: Artech House, 1994, ch. 2, pp. 62-85.
4. R. S. Symons and H. R. Jory, "Cyclotron resonance devices," in Advances in Electronic and Electron Physics, vol. 55. New York: Academic, 1981, pp. 1-75.
5. V. A. Flyagin, A. V. Gaponov, M. I. Petelin, and V. K. Yulpatov, "The gyrotron," IEEE Trans. Microwave Theory Tech., vol. MTT-25, pp. 514-7521, June 1977.
6. R. Q. Twiss, "Radiation transfer and the possibility of negative absorption in radio astronomy," Australian J. Phys., vol. 11, pp. 564-579, 1958.
7. J. Schneider, "Stimulated emission of radiation by relativistic electrons in a magnetic field," Phys. Rev. Lett., vol. 2, no. 12, pp. 504-505, 1959.
8. A. V. Gaponov, "Interaction between electron fluxes and electromagnetic waves in waveguides," I:v. VUZ.. Radiofiiika, vol. 2, pp. 450-462, 1959;
9. and "Addendum," I:\: VUZ., Radiofiiika, vol. 2, pp. 836-837, 1959.
10. R. H. Pantell, "Backward-wave oscillations in an unloaded guide," Proc. IRE, vol. 47, p. 1146, June 1959.
11. I. B. Bott, "Tunable source of millimeter and submillimeter electromagnetic radiation," Proc. IEEE, vol. 5, pp. 330-331, Mar. 1964.
12. J. L. Hirshfield and J. M. Wachtel, "Electron cyclotron maser," Phys. Rev. Lett., vol. 12, no. 19, pp. 533-536, 1964.
13. N. I. Zaytsev, T. B. Pankratova, M. I. Petelin, and V. A. Flyagin, "Millimeter and submillimeter waveband gyrotrons," Radiotekhnika I Electronica, vol. 19, no. 5, pp. 1056-1060, 1974.
14. D. V. Kisel, G. S. Korablev, V. G. Navel'yev, M. I. Petelin, and S. Y. Tsimring, "An experimental study of a gyrotron, operating at the second harmonic of the cyclotron frequency, with optimized distribution of the high frequency field," Radio Eng. Electron. Pliys., vol. 19, no. 4, pp. 95-100, 1974.
15. A. A. Andronov, V. A. Flyagin, A. V. Gaponov, A. L. Gol'denberg, M. I. Petelin, "v. G. Usov, and V. K. Yulpatov, "The gyrotron: High-power source of millimeter and submillimeter waves," Infrared Phys., vol. 18, no. 6, pp. 385-393, 1978.
16. V. A. Flyagin and G. S. Nusinovich, "Gyro-oscillators," Proc. IEEE, vol. 76, pp. 644-656, June 1988.
17. A. L. Goldenberg and A. G. Litvak, "Recent progress of high-power millimeter wavelength gyrodevices," Phys. Plasmas, vol. 2, no. 6, pp. 2562-2572, June 1995.
18. V. L. Granatstein, B. Levush, B. G. Danly, and R. K. Parker, "A quarter century of gyrotron research and development," IEEE Trans. Plasma Sei., vol. 25, pp. 1322-1335, Dec. 1997.
19. S. H. Gold and G. S. Nusinovich, "Review of high-power microwave source research," Rev. Sei. lustrum., vol. 68, pp. 3945-3974, Nov. 1997.
20. G. S. Nusinovich and R. E. Erm, "Efficiency of a CRM monotron with a gaussian longitudinal distribution of high frequency fields," Electronnay Tekhnika Ser. 1, Electronika SVCh, vol. 8, pp. 55-60, Aug. 1972.
21. T. Tran, B. G. Danly, K. E. Kreischer, J. B. Schutkeker, and R. J. Temkin, "Optimization of gyrotron efficiency," Phys. Fluids, vol. 29, pp. 1274-1281, Apr. 1986.
22. B. Levush and T. M. Antonsen, Jr., "Mode competition and control in high power gyrotron oscillators," IEEE Trans. Plasma Sei., vol. 18, pp. 260-272, June 1990.
23. B. Levush, S. Y. Cai, T. M. Antonsen, Jr., W. C. GUSS, M. A. Basten, K. E. Kreischer, and R. Temkin, "Effect of velocity spread on operation of high power gyrotrons," in Proc. 19th Int. Conf. Infrared and Millimeter Waves, Oct. 1994, pp. 470471.
24. G. Saraph, T. M. Antonsen, Jr., B. Levush, and G. I. Lin, "Regions of stability of high-power gyrotron oscillators," IEEE Trans. Plasma Sei., vol. 20, pp. 115-125, Oct. 1992.
25. P. Sprangle and A. Drobot, "The linear and selfconsistent nonlinear theory of the electron cyclotron maser instability," IEEE Trans. Microwave Theory Tech., vol. 25, pp. 528-544, June 1977.
26. K. E. Kreisher and R. J. Temkin, "Linear theory of the electron cyclotron maser," Int. J. Infrared and Millimeter Waves, vol. 1, pp. 195-223, March 1980.
27. Y. Y. Lau, K. R. Chu, L. R. Barnett, and V. Granatstein, "Gyrotron traveling wave amplifier: I. Analysis of oscillations," Int.J. Infrared and Millimeter Waves, vol. 2, no. 3, pp. 373-393, May 1981.
28. P. Latham, S. Miller, and C. Striffler, "Generalized form of Madey's theorem for computing the gain in microwave devices," Phys. Rev. A, vol. 45, pp. 1197-1206, 1991.
29. G. S. Nusinovich, "Mode interaction in gyrotrons," Int. J. Electron., vol. 51, pp. 457-474, Oct. 1981.
30. G. S. Nusinovich and V. Y. Zapevalov, "Self-modulation instability of gyrotron radiation," Radiotech. Electron., vol. 3, pp. 563-570, 1985.
31. I. G. Zarnitsyna and G. S. Nusinovich, "Stability of single-mode self-excited oscillations in a gyromonotron," Radiophys. Quantum Electron., vol. 17, pp. 1418-1424, 1974.
32. D. Dialetis and K. Chu, "Mode competition and stability analysis of gyrotron oscillator," in Infrared and Millimeter Waves, K. J. Button, Ed. New York: Academic, 1983, ch. 10, pp. 537-581.
33. G. S. Nusinovich, A. B. Pavelyev, and V. I. Khizhnyak, "Restrictions on the choice of optimum parameters of gyrotrons for mode competition conditions," Soi1. /. Commun. Tech. Electron., vol. 33, pp. 114-117, 1989.
34. S. Y. Cai, T. M. Antonsen, Jr., G. Saraph, and B. Levush, "Multifrequency theory of hieh power gyrotron oscillators," Int. J. Electron., vol. 72, pp. 759-777, May 1992.
35. D. R. Whaley, M. Q. Tran, S. Alberti, T. M. Tran, T. M. Antonsen, Jr., and C. Tran, "Startup methods for single-mode gyrotron operation," Pliys. Rev. Lett., vol. 75, pp. 1304-1307, 1995.
36. D. R. Whaley, M. Q. Tran, T. M. Tran, and T. M. Antonsen, Jr., "Mode competition and start-up in cylindrical cavity gyrotrons using high-order operating modes," IEEE Trans. Plasma Sei., vol. 22, pp. 850-860, Oct. 1994.
37. V. Bratman, M. Moseev, M. Petelin, and R. Erm, "Theory of gyrotrons with a nonfixed structure of the high-frequency field," Radiophys. Quantum Electron., vol. 16, pp. 474-480, 1973.
38. A. Fliflet, M. Read, K. Chu, and R. Seeley, "Self-consistent field theory for Gyrotron oscillators," Int. J. Electron., vol. 53, pp. 505-521, Dec. 1982.
39. A. Ganguly and S. Ahn, "Self-consistent large signal theory of the gyrotron traveline wave amplifier," Int. J. Electron., vol. 53, pp. 641-658, Dec. 1982.
40. N. S. Ginzburg, G. S. Nusinovich, and N. A. Zavolsky, "Theory of nonstationary processes in gyrotrons with low Q resonators," Int.J. Electron., vol. 61, pp. 881-894, Dec. 1986.
41. K. E. Kreischer, T. L. Grimm, W. C. GUSS, A. W. Mobius, and R. J. Temkin, "Experimental study of high frequency megawatt gyrotron oscillator," Pliys. Fluids, vol. B2, pp. 640-646, Mar. 1990.
42. P. Latham, W. Lawson, and V. Irvin, "The design of a 100 M\V, Ku band second harmonic gyroklystron experiment," IEEE Trans. Plasma Sei., vol. 22, pp. 804-817, Oct. 1994.
43. A. Ganguly and K. R. Chu, "Analysis of two cavity, gyroklystron," Int. J. Electron., vol. 51, pp. 503-520, Oct. 1981.
44. A. T. Lin, K. R. Chu, C. C. Lin, C. S. Kou, D. B. McDermott, and N. C. Luhmann, Jr., "Marginal stability design criterion for gyro-TWT's and comparison of fundamental with second harmonic operation," Int. J. Electron., vol. 22, pp. 873-885, May 1992.
45. K. R. Chu, V. Granatstein, P. Latham, W. Lawson, and C. Strifier, "A 30 MW gyroklystron-amplifier design for high energy linear accelerators," IEEE Trans. Plasma Sei., vol. PS13, pp. 424-434, Dec. 1985.
46. N. S. Ginzburg, I. G. Zarnitsyna, and G. Nusinovich, "Theory of relativistic cyclotron-resonance maser amplifiers," Radiophys. Quantum Electron., vol. 24, pp. 331-338, 1981.
47. G. S. Nusinovich and H. Li, "Theory of gyro-traveling wave tubes at cyclotron harmonics," Int. J. Electronics, vol. 72, pp. 895-907, May 1992.
48. J. M. Neilson, P. E. Latham, M. Caplan, and W. Lawson, "Determination of the resonant frequencies in a complex cavity using the scattering matrix formulation," IEEE Trans. Microwave Theory Tech., vol. 37, pp. 1165-1170, 1989.
49. M. Blank, B. G. Danly, B. Levush, P. E. Latham, and D. E. Pershing, "Experimental demonstration of a W-Band gyroklystron amplifier," Phys. Rev. Lett., vol. 79, pp. 4485-4488, Dec. 1997.
50. M. Boton, T. M. Antonsen, Jr., B. Levush, K. Nguyen, and A. Vlasov, "MAGY: A time dependent code for simulation of slow and fast microwave sources," IEEE Trans. Plasma Sei., vol. 26, pp. 882-892, June 1998.
51. J. Choi, A. H. McCurdy, F. Wood, R. H. Kyser, J. P. Calame, K. Nguyen, B. G. Danly, T. Antonsen, B. Levush, and R. K. Parker, "Experimental investigation of a high power, two-cavity, 35 GHz gyroklystron amplifier," IEEE Trans. Plasma Sei., vol. 26, pp. 416-425, June 1998.
52. M. Blank, B. G. Danly, B. Levush, and D. Pershing, "Experimental investigation of W-band (93 GHz) gyroklystron amplifiers," IEEE Trans. Plasma Sei., vol. 26, pp. 409-415, June 1998.
53. K. R. Chu, "Theory of electron cyclotron maser interaction in a cavity at the harmonic frequencies," Phys. Fluids, vol. 21, pp. 2354-2364, Dec. 1978.
54. B. G. Danly and R. J. Temkin, "Generalized nonlinear harmonic gyrotron theory," Pliys. Fluids, vol. 29, pp. 561-567, 1986.
55. G. P. Saraph, T. M. Antonsen, Jr., G. S. Nusinovich, and B. Levush, "A study of parametric instability in a harmonic gyrotron: Desiens of third harmonic gyrotrons at 94 GHz and 210 GHz," Pliys. Plasmas, vol. 2, pp. 2839-2846, 1995.
56. __, "Nonlinear theory of stable operation of a gyrotron at cyclotron harmonics," Pliys. Fluids, vol. B5, pp. 4473-4485, 1993.
57. G. S. Nusinovich, B. Levush, and O. Dumbrajs, "Optimization of multistaee harmonic gyrodevices," Pliys. Plasmas, vol. 3, pp. 3133-3"l44, 1996.
58. P. E.Latham and G.S. Nusinovich, "Theory of realtivistic gyrotraveling wave devices," Pliys. Plasmas, vol. 2, pp. 3494-3510, 1995.
59. __, "Stability of relativistic gyro-traveline wave devices," Pliys. Plasmas, vol. 2, pp. 3511-3522, 1995.
60. R. Prater, "Recent results on the application of electron cyclotron heating to tokamaks," J. Fusion Energy, vol. 9, no. 1, pp. 19-30, Mar. 1990.
61. V. Erckmann and U. Gasparino, "Electron cyclotron resonance heating and current drive in toroidal fusion plasmas," Plasma Pliys. Control Fusion, vol. 36, pp. 1869-1962, Dec. 1994.
62. B. W. Stallard, "Electron cyclotron resonance heating in tandem mirrors," Lawrence Livermore National Laboratory, Livermore, CA, Rep. UCRL-92848, Sept. 1985.
63. M. Makowski, "Design of an electron cyclotron heating system for the ITER tokamak," in Proc. 21st Int. Conf. Infrared and Millimeter Waves, Paper AW1, July 1996.
64. K. Felch, H. Huey, and H. Jory, "Gyrotrons for ECH applications," J. Fusion Energy, vol. 9, no. 1, pp. 59-75, Mar. 1990.
65. K. I. Thomassen, "Electron cyclotron wave sources and applications for fusion," J. Fusion Energy, vol. 9, no. 1, pp. 1-6, Mar. 1990.
66. R. A. Dandl et al., "The EBT-II conceptual design study," Oak Ridge National Laboratory, Oak Ridge, TN, TM-5955, Sept. 1978.
67. J. M. Baird and W. Lawson, "Magnetron injection gun (MIG) desicn for gyrotron applications," Int. J. Electron., vol. 61, no. 6, pp. 953-967, Dec. 1986.
68. K. E. Kreischer, B. G. Danly, J. B. Schutkeker, and R. J. Temkin, "The design of mecawatt gyrotrons," IEEE Trans. Plasma Sei., vol. PS-13, pp. 364-373, Dec. 1985.
69. S. N. Vlasov, L. I. Zagryadskaya, and M. I. Petelin, "Transformation of a whispering gallery mode, propagating in a circular waveguide, into a beam of waves," Radio Eng. Electron. Pliys., vol. 20, pp. 14-17, Oct. 1985.
70. G. G. Denisov, A. N. Kutfin, V. I. Malygin, N. P. Venediktov, D. V. Vinogradov, and V. E. Zapevalov, "110-GHz gyrotron with a built-in hiah-efficiency converter," Int. J. Electronics, vol. 72, nos. 5 and 6, pp. 1079-1091, May-June 1992.
71. R. L. Ives, H. R. Jory, J. Neilson, M. Chodorow, J. Feinstein, A. D. LaRue, L. Zitclli, and R. Martorana, "Development and test of a 500-kW, 8-GHz gyrotron," IEEE Trans. Electron Devices, vol. 40, pp. 1316-1321, July 1993.
72. J. M. Neilson, K. Felch, T. S. Chu, J. Feinstein, C. Hess, H. E. Huey, H. R. Jory, Y. M. Mizuhara, and R. Schumacher, "Design and tests of a gyrotron with a radially extracted beam," IEEE Trans. Plasma Sei., vol. 23, pp. 470-480, June 1995.
73. M. V. Agapova, V. V. Alikaev, L. A. Axenova, A. A. Bogdashov, A. S. Borshchegovsky, A. P. Keyer, G. G. Denisov, V. A. Flyagin, A. S. Fix, V. I. Ilyin, V. A. Khmara, A. N. Kostyna, A. N. Kutfin, V. E. Myasnikov, V. O. Nichiporenko, L. G. Popov, V. E. Zapevalov, and F. G. Zakirov, "Long-pulse 110 GHz/1 MW gyrotron," in Proc. 20th Int. Conf. Infrared and Millimeter Waves, Dec. 1995, pp. 205-206.
74. A. Singh, G. Hazel, V. L. Granatstein, and G. Saraph, "Magnetic field profiles in depressed collector region for small orbit gyrotrons with axially or radially extracted beam," Int. J. Electron., vol. 72, nos. 5 and 6, pp. 1153-1163, May-June 1992.
75. K. Felch, M. Blank, P. Borchard, T. S. Chu, J. Feinstein, H. R. Jory, J. a. Lorbeck, C. M. Loring, Y. M. Mizuhara, J. M. Neilson, R. Schumacher, and R. J. Temkin, "Long-pulse and C\V tests of a 110-GHz gyrotron with an internal, quasioptical converter," IEEE Trans. Plasma Sei., vol. 24, pp. 558-569, June 1996.
76. P. Garin, G. Bon-Mardion, M. Pain, R. Heidinger, M. Thumm, A. Dubrovin, E. Giguet, and C. Tran, "Cryogenically-cooled window: A new step toward CW operation," in Proc. 20th Int. Conf. Infrared and Millimeter Waves, Dec. 1995, pp. 271-272.
77. R. Heidinger, J. Molla, and V. V. Parshin, "Step to intrinsic absorption in doped silicon," in Proc. 21st Int. Conf. Infrared and Millimeter Waves, Paper AW8, July 1996.
78. V. E. Myasnikov, M. V. Agapova, V. V. Alikaev, A. S. Borshchegovsky, G. G. Denisov, V. A. Flaygin, A. S. Fix, V. I. Ilyin, A. P. Keyer, V. A. Khmara, D. V. Khmara, A. N. Kostyna, V. O. Nichiporenko, L. G. Poponov, and V. E. Zapevalov, "Megawatt power long-pulse 140 GHz gyrotron," in Proc. 21st Int. Conf. Infrared and Millimeter Waves, Paper AThl, July 1996.
79. M. Thumm, "State-of-the-art of high power gyro-devices and free electron masers-Update 1997," Forschungszentrum Karlsruhe, Karlsruhe, Germany, Rep. FZKA 6060,"Feb. 1998.
80. V. E. Myasnikov, M. V. Agapova, V. V. Alikaev, A. A. Bogdashov, A. S. Borshchegovsky, G. G. Denisov, V. A. FLaygin, A. S. Fix, V. I Ilyin, V. N. Ilyin, V. A. Khmara, D. V. Khmara, A. N. Kostyna, V. O. Nichiporenko, L. G. Popov, and V. E. Zapevalov, "Long-pulse operation of 110-GHz 1-MVV gyrotron," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 102-103.
81. V. E. Zapevalov, V. V. Alikaev, G. G. Denisov, V. A. Flaygin. A. S. Fix, A. N. Kutfin, V. I. Kurbatov, and V. E. Myasnikov, "Development of I MW output power level gyrotron for ITER," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 108-109.
82. K. Sakamoto, M. Tsuneoka, A. Kasugai, K. Talahashi, S. Maebara, T. Imai, T. Kariya, Y. Okazaki, K. Hayashi, Y. Mitsunaka, and Y. Hirata, "Development of 110 GHz CPD gyrotron," in Proc. 19tli Int. Conf. Infrared and Millimeter Waves, Oct. 1994, pp. 63-64.
83. E. Giguet, P. Thouvenin, C. Tran, P. Garin, M. Pain, S. Alberti, M. Q. Tran, and M. Thum,"Status of the 118 GHz-0.5 MW-quasi CW gyrotron for Tore Supra and TCV tokamaks," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 104-105.
84. K. Felch. P. Borchard, S. Cauffman, R. W. Callis, P. Cahalan, T. S. Chu, D. Denison, H. Jory, M. Mizuhara, D. Remsen, G. Saraph, and R. J. Temkin, "Status report on a 110 GHz, 1 MW CW gyrotron with a CVD diamond window," in Proc. 23rd Int. Conf. Infrared and Millimeter Waves, Sept. 1998, pp. 367-368.
85. T. Shimozuma, M. Sato, Y. Takita, S. Ito, H. Idei, K. Ohkubo, T. Watari, T. S. Chu, K. Felch, P. Cahalan, C. M. Loring, Jr., "The first experiments on an 84 GHz gyrotron with a single-stage depressed collector," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 194-195.
86. Y. Bykov, A. Eremeev, V. Flyagin, V. Kaurov, A. Kutfin, A. Luchinin, O. Malygin, I Plotnikov, and V. Zapevolov, "The gyrotron system for ceramics sintering," in Microwaves: Theory Applicat. Materials Processing III, Ceramics Trans., vol. 59, pp. 133-140, 1995.
87. 3-SiC whisker composites," Ceramics Eng. Sci.'Proc., vol. 8, pp. 861-871, 1987.
88. J. D. Katz, R. D. Blake, and J. J. Petrovic, "Microwave sintering of alumina-silicon carbide composites at 2.45 and 60 GHz," Ceramics Eni. Sei. Proc., vol. 9, nos. 7-8, pp. 725-734, 1988.
89. H. D. Kimrey, T. L. White, T. S. Bigelow, and P. F. Becher, "Initial results of a high power microwave sintering experiments at ORNL," J. Microwave Power and Eleclromagentic Energy, vol. 21, no. 2, pp. 81-82, 1986.
90. Y. V. Bykov and V. E. Semenov, "Processing of material using microwaye radiation," in Applications of High-Power Microwaves, A. V. Gaponov-Grekhov and V. L. Granatstein, Eds. Norwood, MA: Artech House, 1994, ch. 8, pp. 319-351.
91. B. Paton, V. E. Sklyarevich, and M. V. Shevelev, "Gyrotron radiation provides tool for new capabilities in coating products of varied materials," Indnst. Heating, pp. 53-55, Jan. 1994.
92. T. Kikunaga, H. Asano, Y. Yasojima, F. Sato, and T. Tsukamoto, "A 28 GHz gyrotron with permanent magnet system," Int. J. Electron., vol. 79, no. 5, pp. 655-663, 1995.
93. T. Takada, K. Ohashi, M. Honshima, and T. Kikunaga, "NdFe-B permanent magnet circuit for a 28 GHz CW gyrotron," in Proc. 20th Int. Conf. Infrared and Millimeter Waves, Dec. 1995, pp. 489-490.
94. H. Asano, T. Kikunaga, K. Hemmi, F. Sato, and T. Tsukamoto, "A 28 GHz gyrotron with a permanent magnet system for industry applications," in Proc. 21st Int. Conf. Infrared and Millimeter Waves, Paper AM5, July 1996.
95. H. Jory, P. Cahalan, S. Chu, K. Felch, M. Loring, M. Redmond, C. Stanger, and J. Topping, "A 10 kW 28 GHz power source for industrial use," in P roc. Int. Microwave Power lust. Syrnp., Ottawa, Canada, 1997.
96. T. Saji, "Microwave sintering of large products," in Proc. Materials Research Society Synip. Microwave Processing of Materials V, 1996, vol. 430, pp. 15-20.
97. W. M. Manheimer, G. Mesyats, and M. I. Petelin, "Applications of high power microwave sources to enhanced radar systems," in Applications of High-Power Microwaves, A. V. Gaponov-Grekhov and V. L. Granatstein, Eds. Norwood, MA: Artech House, 1994, ch. 5, pp. 169-207.
98. M. I. Skolnik, "An introduction to radar," in Radar Handbook, M. I. Skolnik, Ed. New York: McGraw-Hill, 1990, ch. 1.
99. H. Liebe, Int. J. Infrared and Millimeter Waves, vol. 10, p. 631, June 1989.
100. D. R. Lohrmann, "Millimeter wave radars tracking approaching sea-skimming targets," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 39-41.
101. R. L'Hermitte, Geophysical Res. Lett., vol. 14, no. 3, p. 707, June 1987.
102. A. A. Tolkachev, "Gyroklystron-based 35 GHz radar for observation of space objects," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 37-38.
103. A. Staprans, E. W. McCune, and J. A. Reutz, "High power linear beam tubes," Proc. IEEE, vol. 61, pp. 299-330, Mar. 1973.
104. A. T. Lin and P. K. Kaw, "Absolute instability in finite length electron cyclotron maser systems," Int. J. Electronics, vol. 72, pp. 887-894, May 1992.
105. L. R. Bamett, L. H. Chang, H. Y. Chen, K. R. Chu, W. K. Lau, and C. C. Tu, "Absolute instability competition and supression in a millimeter-wave gyro-TWT," Phys. Rev. Lett., vol. 63, p. 1062, Sept. 1989.
106. S. Alberti, B. G. Danly, G. Culotta, T. Kimura, W. L. Menninger, J. L. Rullier, and R. J. Temkin, "Experimental study of a 28 GHz high power long pulse cyclotron autoresonance maser oscillator," Phys. Rev. Lett., vol. 71, pp. 2018-2021, 1993.
107. P. Ferguson, G. Valier, and R. Symons, "Gyrotron-TWT operating characteristics," IEEE Trans. Microwave Theory Tech., vol. MTT-29, pp. 794-799, Aug. 1981.
108. J. Neilson, M. Caplan, N. Lopez, and K. Felch, "Simulation of space-charge effects on velocity spread in gyro devices," in Proc. Int. Electron Devices Meeting, Dec. 1985, pp. 184-187.
109. T. Bemis, G. P. Scheitrum, T. Hargreaves, and L. Higgins, "Beamstick for a 95 GHz gyroklystron," in Proc. Int. Electron Devices Meeting, Dec. 1994, pp. 251-254.
110. T. M. Antonsen, Jr., A. A. Mondelli, B. Levush, J. P. Verboncoeur, and C. K. Birdsall, "Advances in modeling and simulation of vacuum electronic devices," this issue, pp. 804-839.
111. J. P. Calame and D. K. Abe, "Applications of advanced materials technologies in vacuum electronic devices," this issue, pp. 840-864.
112. Q. S. Wang, D. B. McDermott, and N. C. Luhmann, Jr., "Demonstration of marginal stability theory by a 200 kW second-harmonic gyro-TWT amplifier," Phys. Rev. Lett., vol. 75, p. 4322, 1995.
113. __, "Operation of a stable 200-kW second-harmonic gyroTWT amplifier," IEEE Trans. Plasma Sei., vol. 24, pp. 700-706, June 1996.
114. M. Caplan, "Gain characteristics of stagger-tuned multi-cavity gyroklystron amplifiers," in P roc. 8th Int. Conf. Infrared and Millimeter Waves, Paper W4.2, Dec. 1983.
115. G. S. Nusinovich, B. G. Danly, and B. Levush, "Gain and bandwidth in stagger-tuned gyroklystrons," Phys. Plasmas, vol. 4, pp. 469-478, 1997.
116. A. V. Gaponov, A. L. Goldenberg, and V. K. Yulpatov, in Abstr. 5th All Union Conf. Microwave Electronics (in Russian), Saratov Univ., vol. 20, 1966.
117. J. M. Wachtel and J. L. Hirshfield, Phys. Rev. Lett., vol. 17, p. 348, 1966.
118. 1.1. Antakov, E. V. Zasypkin, and E. V. Sokolov, "Design and performance of 94 GHz high power multicavity gyroklystron amplifier," in Proc. 18th Int. Conf. Infrared and Millimeter Waves, Conf. Dig., Sept. 1993, pp. 466-467.
119. I. I. Antakov, E. V. Zasypkin, E. V. Sokolov, and V. K. Yulpatov, "35 GHz radar gyroklystrons," in Proc. 18th Int. Conf. Infrared and Millimeter Waves, Sept. 1993, pp. 338-339.
120. E. V. Sokolov, I. G. Gachev, E. V. Zasypkin, and 1.1. Antakov, "Experimental study of high-power Ka-band second harmonic gyroklyston amplifier," in Proc. Intense Microwave Pulses III, SPIE 2557, July 1995, pp. 386-392.
121. 1.1. Antakov, E. V. Sokolov, and E. V. Zasypkin, "Design and performance of 94 GHz high power multicavity gyroklystron amplifier," in Proc. Int. Workshop Strong Microwaves in Plasmas, Aug. 1993, pp. 754-758.
122. 1.1. Antakov, A. V. Gaponov, E. V. Zasypkin, E. V. Sokolov, V. K. Yulpatov, L. A. Aksenova, A. P. Keyer, V. S. Musatov, V. E. Maysnikov, L. G. Popov, B. A. Levitan, and A. A. Tolkachev, "Gyroklystrons: Millimeter wave amplifiers of the highest power," in Proc. Int. Workshop Strong Microwaves in Plasma, Aug. 1993, pp. 587-596.
123. H. R. Jory, F. Friedlander, S. J. Hegji, J. F. Shively, and R. S. Simmons, "Gyrotrons for high-power millimeter wave generation," in Proc. Int. Electron Devices Meeting, 1977, pp. 234-237.
124. H. R. Jory, "Development of gyrotron power sources in the millimeter wavelength range," in Proc. Joint Varenna-Grenoble Int. Symp. Heating in Toroidal Plasma, 1978, vol. 2, pp. 351-362.
125. L. R. Barnett, J. M. Baird, Y. Y. Lau, K. R. Chu, and V. L. Granatstein, "A high-gain single-stage gyrotron travelingwave amplifier," IEEE Int. Electron Devices Meeting, Tech. Dig., 1980, p. 314.
126. V. L. Granatstein, M. E. Read, and L. R. Barnett, "Measured performance of gyro-oscillators and amplifiers," in Infrared and Millimeter Waves, vol. 5, K. J. Button, Ed. New York: Academic, 1982, ch. 5, pp. 267-304.
127. W. M. Bollen, A. H. McCurdy, B. Arfin, R. K. Parker, and A. K. Ganguly, "Design and performance of a three-cavity gyroklystron amplifier," IEEE Trans. Plasma Sei., vol. PS-13, pp. 417-423, Dec. 1985.
128. G. S. Park et al., "Realization of improved efficiency in a gyroklystron amplifier," Part. Accel., vol. 43, pp. 92-105, 1993.
129. J. N. Eckstein, D. W. Latshaw, and D. S. Stone, "95 GHz gyro traveling wave tube," Varian Assoc., Inc., Final Rep., Contract DASG60-79-C-005 (BMDATC), 1983.
130. A. T. Lin, K. R. Chu, C. C. Lin, C. S. Kou, D. B. McDermott, and N. C. Luhmann Jr., "Marginal stability design criterion for gyro-TWT's and comparison of fundamental with second harmonic operation," Int. J. Electron., vol. 72, pp. 873-885, May 1992.
131. K. R. Chu, Y. Y. Lau, L. R. Bamett, and V. L. Granatstein, "Theory of a wide-band distributed gyrotron traveling-wave amplifier," IEEE Trans. Electron Devices, vol. ED-28, pp. 866-871, July 1981.
132. G. S. Park, S. Y. Park, R. H. Kyser, C. M. Armstrong, A. K. Ganguly, and R. K. Parker, "Broadband operation of a Ka-band tapered gyro-traveling wave amplifier," IEEE Trans. Plasma Sei., vol. 22, pp. 536-543, Oct. 1994.
133. G. S. Park, J. J. Choi, S. Y. Park, C. M. Armstrong, R. H, Kyser, A. K. Ganguly, K. T. Nguyen, and R. K. Parker, "Experimental investigation of two-stage tapered gyro-traveling wave tube amplifier," in Proc. 19th Int. Conf. Infrared and Millimeter Waves, Oct. 1994, pp. 417-418.
134. G. S. Park. J. J. Choi, S. Y. Park, C. M. Armstrong, A. K. Ganguly, R. H. Kyser, and R. K. Parker, Phys. Rev. Lett., vol. 74, p. 2399, 1995.
135. K. R. Chu, L. R. Bamett, W. K. Lau, L. H. Chang, and H. Y. Chen, "A wide-band millimeter-wave gyrotron travelingwave amplifier," IEEE Trans. Electron Devices, vol. 37, pp. 1557-1560, June 1990.
136. K. R. Chu, L. R. Barnett, W. K. Lau, L. H. Chang, and C. S. Kou, "Recent developments in millimeter wave gyro-TWT research at NTHU," in Proc. Int. Electron Devices Meeting, Dec. 1990, pp. 699-702.
137. K. R. Chu, L. R. Barnett, C. S. Kou, W. K. Lau, H. Y. Chen, and S. H. Chen. "Performance characteristics of the NTHU gyrotron traveling wave amplifier," in Proc. 16th Int. Conf. Infrared and Millimeter Waves, Aug. 1991, p. 197.
138. K. R. Chu, H. Y. Chen, C. L. Hung, T. H. Chang, L. R. Bamett, S. H. Chen, and T. T. Yang, "An ultra high gain gyrotron traveling wave amplifier," in Proc. 23rd Int. Conf. Infrared and Millimeter Waves, Sept. 1998, pp. 30-31.
139. Q. S. Wang, K. C. Leou, C. K. Chong, A. J. Balkcum, D. B. McDermott, and N. C. Luhmann, Jr., "Gyro-TWT amplifier development at UCD," in Proc. 19th Int. Conf. Infrared and Millimeter Waves, Oct. 1994, pp. 415-116.
140. P. M. Malouf, V. L. Granatstein, S. Y. Park, and C. M. Armstrong, "Performance of a wideband, three-stage mixed geometry gyrotvvystron amplifier," IEEE Trans. Electron Dev., vol. 42, pp. 1681-1685, Spet. 1995.
141. M. Blank, E. V. Zasypkin, and B. Levush, "An investigation of X-band gyrotwystron amplifiers," IEEE Trans. Plasma Sei., vol. 26, pp. 577-581, June 1998.
142. M. Blank, G. Danly, and B. Levush, "Experimental demonstration of W-band gyro-amplifiers with improved performance," in Proc. 23rd Int. Conf. Infrared and Millimeter Waves, Sept. 1998, pp. 26-27.
143. M. Garven, J. P. Calame, J. J. Choi, B. G. Danly, K. T. Ngeyen, and F. Wood, "Experimental 35 GHz multi-cavity gyroklystron amplifiers," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, Sept. 1998, pp. 28-29.
144. B. G. Danly, M. Blnak, J. Calame, S. Cooke, B. Levush, W. manheimer, A. McCurdy, K. Nguyen. D. Pershing, J. Petillo, R. K. Parker, T. A. Hargreaves, A. J. Theiss, R. B. True, K. Felch, T. S. Chu, H. Jory, P. Borchard, W. G. James, W. G. Lawson, and T. M. Antonsen, Jr., "Development of a W-band gyroklystron for radar applications," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 227-228.
145. K. L. Felch, B. D. Danly, and B. Levush, unpublished.
146. K. C. Leou, D. B. McDermott, and N. C. Luhmann, Jr., "Large-signal characteristic of a wide-band dielectric-loaded gyro-TWT amplifier," IEEE Trans. Plasma Sei., vol. 24, pp. 718-726, June 1996.
147. M. Garven, B. G. Danly, M. Blank, and M. J. Siegert, "Phase stability measurements of gyroklystron amplifiers," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 235-236.
148. T. M. Antonsen, Jr. and W. M. Manheimer, "Shot noise in gyroklystrons," IEEE Trans. Plasma Sei., vol. 26, pp. 444-450, June 1998.
149. D. S. Furuno, D. B. McDermott, C. S. Kou, N. C. Luhmann, Jr., and P. Vitello, "Theoretical and experimental investigation of a high-harmonic gyro-traveling-wave amplifier," Phys. Rev. Lett., vol. 62, p. 1314, 1989.
150. D. S. Furuno, D. B. McDermott, C. S. Kou, N. C. Luhmann Jr., and P. Vitello, "Operation of a large-orbit high-harmonic gyro-traveling-wave tube amplifier," IEEE Trans. Plasma Sei., vol. 18, pp. 313-320, 1990.
151. C. K. Chong, D. B. McDermott, and N. C. Luhmann, Jr., "Slotted third-harmonic gyro-TWT amplifier experiment," IEEE Trans. Plasma Sei., vol. 24, pp. 727-734, June 1996.
152. D. S. Furuno, D. B. McDermott, H. Cao, C. S. Kou, N. C. Luhmann, Jr., P. Vitello, and K. Ko, "A four-cavity, high-harmonic gyroklystron amplifier," Int. J. Electron., vol. 65, pp. 429-135, Sept. 1988.
153. G. P. Scheitrum, T. Bemis, T. A. Hargreaves, and L. Higgins, "95 GHz harmonic gyroklystron," in Proc. 18th Int. Conf. Infrared and Millimeter Waves, Sept. 1993, pp. 523-524.
154. W. DeHope, K. Felch, G. hu, M. Mizuhara, J. Neilson, P. Reysner, R. Schumacher, B. Stockwell, A. Balkcum, C. Chong, N. Luhmann, Jr., and D. McDermott, "Initial tests of a high power, broadband gyroTWT," in Proc. Int. Electron Devices Meeting, Dec. 1993, pp. 355-358.
155. 01 gyro-TWT amplifiers," IEEE Trans. Plasma Sei., vol. 22, pp. 585-592, Oct. 1994.
156. G. G. Denisov, V. L. Bratman, A. D. R. Phelps, and S. V. Samsonov, "Gyro-TWT with a helical operating waveguide: New possibilities to enhance efficiency and frequency bandwidth," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 289-290.
157. G. G. Denisov and S. J. Cooke, "New microwave system for gyro-TWT," in Proc. 21st Int. Conf. Infrared and Millimeter Waves, Paper AT2, July 1996.
158. P. B. Wilson, "Application of high-power microwave sources to TeV linear colliders," in Applications of High Power Microwaves, A. V. Gaponov-Grekhov and V. L. Granatstein, Eds. Norwood, MA: Artech House, 1994, ch. 7, pp. 229-318.
159. G. Caryotakis, "The X-band klystron program at SLAC," in Proc. Workshop Pulsed RF Sources for Linear Colliders, KEK P roc. 97-1, Kanagawa, Japan, 1996, pp. 72-80.
160. S. H. Gold, A. W. Flifet, A. K. Kinkead, B. Hafizi, O. a. Nezhevenko, V. P. Yakovlev, J. L. Hirshfield, and R. True, "Development of an X-band magnicon amplifier for the next linear collider," in Proc. Advanced Accelerator Concepts Wrokshop, Lake Tahoe, CA, 1996, pp. 832-841.
161. T. J. Orzechowski, B. R. Anderson, J. C. Clark, W. M. Fawley, A. C. Paul, D. Prosnitz, E. T. Scharlemann, and S. M. Yarema, "High-efficiency extraction of microwave radiation from a tapered-wiggler free-electron laser," Phys. Rev. Lett., vol. 57, no. 17, pp. 2172-2175, Oct. 1986.
162. J. A. Nation, S. A. Naqvi, G. S. Kerslick, and L. Schaechter, "Progress in high power, high efficiency relativistic traveling wave tube amplifiers," in Proc. Advanced Accelerator Concepts Workshop, Lake Tahoe, CA, 1996, pp. 852-864.
163. J. Haimson, B. Mecklenburg, and B. G. Danly, "Initial performance of a high gain, high efficiency 17 GHz relativistic klystron for high gradient accelerator research," in Proc. Workshop Pulsed RF Sources for Linear Colliders, Montauk, NY, 1994, pp. 146-159.
164. V. L. Granatstein and W. Lawson, "Gyro-amplifiers as candidate RF drivers for TeV linear colliders," IEEE Trans. Plasma Sei., vol. 24, pp. 648-665, June 1996.
165. P. H. Rebut, "ITER, the first experimental fusion reactor," Fusion Eng. Design, vol. 27, pp. 3-16, June 1995.
166. M. Makowski, "ECRF systems for ITER," IEEE Trans. Plasma Sei., vol. 24, pp. 1023-1032, June 1996.
167. K. Sakamoto, A. Kasugai, M. Tsuneoka, K. Takahashi, Y. Ikeda, T. Imai, T. Nagashima, M. Ohta, T. Kariya, K. Hayashi, Y. Mitsunaka, Y. Hirata, Y. Itoh, and Y. Okazaki, "Development of 170 GHz/500 kW gyrotron," /;;/. J. Infrared and Millimeter Waves, vol. 18, no. 9, pp. 1637-1654, Sept. 1997.
168. K. Sakamoto, A. Kasugai, M. Tsuneoka, K. Takahashi, Y. Ikeda, T. Imai, T. Kariya, K. Hayashi, Y. Mitsunaka, Y. Hirata, Y. Itoh, and Y. Okazaki, "Development of high power 170 GHz gyrotron for ITER," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 106-107.
169. K. Sakamoto, A Kasugai, M. Tsuneoka, K. Takahashi, Y. Ikeda, T. Imai, T. Kariya, and Y. Mitsunaka, "Development of high power gyrotron with diamond window," in Proc. 23rd Int. Conf. Infrared and Millimeter Waves, Sept. 1998, pp. 363-364.
170. K. E. Kreischer, T. Kimura, B. G. Danly, and R. J. Temkin, "High-power operation of a 170 GHz megawatt gyrotron," Phys. Plasmas, vol. 4, pp. 1907-1914, May 1997.
171. V. E. Myasnikov, S. V. Usachev, M. V. Agapova, V. V. Alikaev, G. G. Denisov, A. S. Fix, V. A. Flyagin, A. P. Gnedenkov, V. I. Hyin, A. N. Kutfin, L. G. Popov, and V. E. Zapevalov, "Long-pulse operation of 170 GHz/1 MW gyrotron for ITER," in Proc. 23rd Int. Conf. Infrared and Millimeter Waves, Sept. 1998, pp. 24-25.
172. M. Thumm, "State-of-the-art and recent developments of highpower gyro-oscillators," in Pulsed RF Sources for Linear Colliders, a Conference Proceeding, to be published.
173. R. Heidinger, R. Sporl, M. Thumm, J. R. Brandon, R. S. Sussmann, and C. N. Dodge, "CVD diamond windows for high power gyrotrons," in Proc. 23rd Int. Conf. Infrared and Millimeter Waves, Sept. 1998, pp. 223-224.
174. T. Shimozuma, S. Morimoto, M. Sato, Y. Takita, S. Ito, S. Kubo, H. Idei, K. Ohkubo, and T. Watari, "A forced gas-cooled single disk window for high power CW millimeter waves," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 146-147.
175. G. S. Haldeman, "Enhanced face cooled gyrotron output windows," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 152-153.
176. B. Piosczyk, O. Braz, G. Dammertz, C. T. latrou, S. Kern, M. Kuntze, G. Michel, A. Mobius, and M. Thumm, "Operation of a coaxial gyrotron with a dual rf-beam output," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 114-115.
177. V. A. Flyagin, V. I. Khiznyak, A. N. Kutfin, V. N. Manuilov, A. B. Pavelyev, V. G. Pavelyev, and V. E. Zapevalov, "Investigation of coaxial gyrotrons at IAP RAS," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 112-113.
178. T. Kimura, J. P. Hogge, R. Advani, D. Denison, K. E. Kreischer, and R. J. Temkin, "Investigation of megawatt power level gyrotrons for ITER," in Proc. 21st Int. Conf. Infrared and Millimeter Waves, paper AMI, July 1996.
179. G. F. Brand, P. F. Fekete, K. Hong, K. J. Moore, and T. Idehara, "Operation of a tunable gyrotron at the second harmonie of the electron cyclotron frequency," Int. J. Electron., vol. 68, pp. 1099-1111, June 1990.
180. G. F. Brand, Z. Chen, N. G. Douglas, M. Gross, J. Y. L. Ma, and L. C. Robinson, "A tunable millimeter-submilimeter gyrotron," Int. J. Electron., vol. 57, pp. 863-870, Dec. 1984.
181. T. Tatsukawa, T. Maeda, H. Sasai, T. Idehara, M. Mekata, T. Saito, and T. Kanemaki, "ESR spectrometer with a wide frequency range using a gyrotron as a radiation power source," Int. J. Infrared and Millimeter Waves, vol. 16, pp. 293-305, Jan. 1995.
182. L. R. Becerra, G. J. Gerfen, R. J. Temkin, D. J. Singel, and R. G. Griffin, "Dynamic nuclear polarization with a cyclotron resonance maser at 5 T," Phys. Rev. Lett., vol. 71, pp. 3561-3564, Nov. 1993.
183. T. Idehara, T. Tatsukawa, I. Ogawa, M. Pereyslavets, N. Nishida, and K. Yoshida, "Frequency modulation of a submillimeter wave gyrotron, gyrotron FU IV," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 110-111.
184. J. S. Machuzak, P. P. Woskov, J. Gilmore, N. L. Bretz, H. K. Park, R. E. Aamodt, P. Y. Cheung, D. A. Russell, and H. Bindslev, "TFTR 60 GHz alpha particle collective Thomson scattering diagnostic," Rev. Sei. lustrum., vol. 66, pp. 484-486, Jan. 1995.
185. 1.1. Antakov, I. G. Gachev, V. I. Kurbatov, E. V. Sokolov. E. A. Solujanova, E. V. Zasypkin, "A Ka-band 10 kW CW efficient compact gyrotron for materials processing," in Proc. 21st Int. Conf. Infrared and Millimeter Waves, Paper AM3, July 1996.
186. I. Antakov, A. V. Gaponov, E. V. Sokolov, E. V. Zasypkin, V. K. Yulpatov, L. A. Aksenova, A. P. Keyer, V. S. Musatov, V. E. Myasnikov, L. G. Popov, B. A. Levitan, and A. A. Tolkachev, "Gyroklystrons: High power millimeter wave amplifiers," in Proc. Int. Workshop Strong Microwaves in Plasmas, Aug. 1993, vol. 2, pp. 587-596.
187. W. Hu, M. A. Shapiro, K. E. Kreischer, and R. J. Temkin, "140 GHz confocal gyrotron experiment," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 116-117.
188. H. Guo, S. H. Chen, V. L. Granatstein, J. Rodgers, G. Nusinovich, M. Walter, B. Levush, and W. J. Chen, "Operation of highly overmoded, harmonic-multiplying, wideband gyroamplifier," Phys. Rev. Lett., vol. 79, pp. 515-518, July 1997.
189. D. L. Hazelton, B. G. Danly, and D. U. Gubser, "Cryogen free high temperature superconducting magnets for 94 GHz gyroklystron-powered radar applications," Naval Eng. J., vol. 110, no. 1, pp. 117-121, 1998.
190. D. H. Whittum, "Millimeter-wave drivers for future linear colliders," in Proc. 22nd Int. Conf. Infrared and Millimeter Waves, July 1997, pp. 54-57.
191. V. L. Granatstein, G. P. Saraph, G. S. Nusinovich, A. Singh, and W. Lawson, "Gyroklystrons for driving linear colliders at 35 GHz," in Proc. 7th Advanced Accelerator Workshop, 1997, pp. 874-885.