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High-Power Sources of Coherent Electromagnetic Radiation

#1733


Creation of High-Power Sources of Coherent Electromagnetic Radiation for Energy, Information and Acceleration Systems

Tech Area / Field

  • PHY-RAW/Radiofrequency Waves/Physics
  • PHY-PFA/Particles, Fields and Accelerator Physics/Physics

Status
3 Approved without Funding

Registration date
20.12.1999

Leading Institute
VNIIEF, Russia, N. Novgorod reg., Sarov

Supporting institutes

  • Russian Academy of Sciences / Institute of Applied Physics, Russia, N. Novgorod reg., N. Novgorod

Project summary

The project is concerned mainly with high-frequency relativistic electronics, which is a fast developing direction of physical studies dealing with problems of converting the energy of intense electron beams accelerated up to relativistic velocities into high-power coherent electromagnetic radiation.

High-power microwave generators and amplifiers based on induced radiation of relativistic electron beams are promising for creation of radaring and radio navigation systems with high spatial resolution, communication systems, new-generation accelerators of elementary particles (supercolliders), for microwave catalysis in plasma chemistry and other scientific, technical and industrial applications. Nowadays the research and development in the field of microwave relativistic electronics have acquired the worldwide character, the gigawatt range of the output power of microwave devices with pulse duration of tens of nanoseconds has been harnessed, and a number of projects aiming at development of relativistic sources of microwave radiation for various practical applications has been realized.

The objective of this project is to perform a set of theoretical and experimental works in order to improve power characteristics of microwave devices with relativistic electron beams and to create sources of high-frequency radiation with pulse energy of hundreds of Joules.

The basic idea of the Project proposed is to reduce intensity of the high-frequency electric field in the operating volume of sources of electromagnetic radiation by passing over to spatially developed electrodynamic systems with their transverse cross-sections large on the scale of the operating wave. Operation at relatively low high-frequency electric fields will make it possible to slow down or even eliminate completely development of breakdown phenomena. Certainly, simple extension of transverse cross-section of the waveguide system causes fast densification of the spectrum of its eigenmodes and, as the result, to the loss of coherence of output radiation. In this connection, a necessary condition for the use of spatially developed electrodynamic system is the use of efficient methods for selection and filtration of modes, i.e. creation of such conditions, when the energy of the electron beam is converted into radiation with a known coherent spatio-temporal structure.

Implementation of the project will include: studies of fundamental physical processes that put limitations to the amplitude and pulse duration of high-power electromagnetic radiation, formulation of basic principles for generation of high-power pulses of coherent high-frequency radiation, development of efficient approaches to their realization, implementation and experimental investigation of prototypes of high-power microwave devices.

The Project will involve specialists in the fields of high-current relativistic electronics, high-current accelerating tools, microwave tools, and radiophysics.

The Project corresponds to the main objectives of ISTC: 60% of Project participants worked in weapon research and are given the possibility to work now for peaceful applications.

Project implementation will result in creation of prototypes of microwave radiation sources operating at power levels up to one gigawatt for various scientific and technical applications.


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The International Science and Technology Center (ISTC) is an intergovernmental organization connecting scientists from Kazakhstan, Armenia, Tajikistan, Kyrgyzstan, and Georgia with their peers and research organizations in the EU, Japan, Republic of Korea, Norway and the United States.

 

ISTC facilitates international science projects and assists the global scientific and business community to source and engage with CIS and Georgian institutes that develop or possess an excellence of scientific know-how.

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