Magnetron Injection Gun for a Short Pulse, 0.67 THz Gyrotron for Remote Detection of Radioactive Materials

In this paper, the design of electron gun for a 0.67 THz gyrotron is presented. The in-house code MIGSYN is used to estimate the initial gun parameters. The electron trajectory tracing 2.5-dimensional (2.5-D) code EGUN is used to optimize the electron gun design. The parametric analysis and misalignment study is also carried out to provide the flexibility in the actual fabrication of the device.

[1]  A. Sinha,et al.  Design of a Triode Magnetron Injection Gun for a 1-MW 170-GHz Gyrotron , 2012, IEEE Transactions on Plasma Science.

[2]  Udaybir Singh,et al.  Design and Misalignment Analysis of 140 GHz, 1.5 MW Gyrotron Interaction Cavity for Plasma Heating Applications , 2011 .

[3]  E. M. Choi.  Design study of a 0.4 THz 100 kW pulsed gyrotron , 2011, 2011 IEEE International Vacuum Electronics Conference (IVEC).

[4]  Seitaro Mitsudo,et al.  THE FIRST EXPERIMENT OF A THz GYROTRON WITH A PULSE MAGNET , 2007 .

[5]  C. J. Edgcombe,et al.  Gyrotron oscillators : their principles and practice , 1993 .

[6]  Victor L. Granatstein,et al.  Detecting excess ionizing radiation by electromagnetic breakdown of air , 2010 .

[7]  M. Glyavin,et al.  A 670 GHz gyrotron with record power and efficiency , 2012 .

[8]  S. Tsimring,et al.  Gyrotron Electron Beams: Velocity and Energy Spread and Beam Instabilities , 2001 .

[9]  V. Granatstein,et al.  Propagation of gamma rays and production of free electrons in air , 2012, 1204.2186.

[10]  Udaybir Singh,et al.  Numerical Simulation of Magnetron Injection Gun for 1mw 120 GHz Gyrotron , 2010 .

[11]  A. Sinha,et al.  A Feasibility Study of Beam-Wave Interaction in 670 GHz Gyrotron for Radioactive Material Detection Application , 2012 .

[12]  Manfred Thumm,et al.  Gyrotrons: High-Power Microwave and Millimeter Wave Technology , 2003 .

[13]  R. Stephenson.  A and V , 1962, The British journal of ophthalmology.

[14]  A. Sinha,et al.  On the Design of a High-Efficiency Double-Beam Gyrotron , 2011, IEEE Transactions on Plasma Science.

[15]  Manfred Thumm,et al.  State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2013 (KIT Scientific Reports ; 7662) , 2014 .

[16]  M. I. Petelin,et al.  The formation of helical electron beams in an adiabatic gun , 1973 .

[17]  N. Kobayashi,et al.  Progress of high power 170 GHz gyrotron in JAEA , 2009 .

[18]  V. K. Lygin,et al.  Numerical Simulation Models of Forming Systems of Intense Gyrotron Helical Electron Beams , 2001 .

[19]  T. Antonsen,et al.  Numerical study of efficiency for a 670 GHz gyrotron , 2011 .

[20]  Victor L. Granatstein,et al.  Development of THz-range Gyrotrons for Detection of Concealed Radioactive Materials , 2011, 2011 21st International Crimean Conference "Microwave & Telecommunication Technology".

[21]  Udaybir Singh,et al.  Synthesized Parameters of MIG for 200 kW, 42 GHz Gyrotron , 2009 .

[22]  A. Sinha,et al.  A Review on the Applications of High Power, High Frequency Microwave Source: Gyrotron , 2011 .

[23]  G. S. Nusinovich,et al.  Design of a Magnetron Injection Gun for a 670-GHz 300-kW Gyrotron , 2011, IEEE Transactions on Plasma Science.

[24]  Udaybir Singh,et al.  Design of interaction cavity of a 170-GHz, 1-MW gyrotron for ECRH application , 2011 .

[25]  W. B. Herrmannsfeldt,et al.  EGUN: An electron optics and gun design program , 1988 .