Tape-record high values of peak power with picosecond generators

Oct 15, 2020 05:44 PM ET
  • Effective picosecond generators are in need in different fields of speculative electrophysics to create ultrashort electron beams as well as X-ray pulses in vacuum cleaner diodes and to develop runaway electron flows in gases.
Tape-record high values of peak power with picosecond generators
Image: spacedaily.com

They likewise have applications in high-power microwave electronic devices, yet scientists are continuously making every effort to get shorter and also more powerful pulses.

In Review of Scientific Instruments, by AIP Publishing, researchers showed portable solid-state pulse generators could produce electric pulses of less than one-billionth of a second in duration and up to 50 billion watts in power.

"For comparison, the most powerful hydroelectric power plant in China has an output power of 22.5 billion watts," said Sergei Rukin, among the authors.

Improving picosecond generators and also mastering greater peak power levels in the picosecond variety sets the groundwork for brand-new applications in the coming years.

"This additionally happened with the growth of effective nanoscecond pulsed tools throughout the last 60 years," said Rukin.

Initially, generators with unique specifications were established and then, application locations showed up, such as high-power microwave electronics and X-ray imaging gadgets for clinical as well as engineering applications.

An input pulse of a millisecond duration from a solid-state semiconductor opening switch generator was magnified in power and lowered in duration by a three-stage magnetic compressor on ferrite gyromagnetic lines.

The line of each phase operated in the magnetic compression line mode, which happens at close worths of the input pulse period as well as the period of oscillations produced in the line.

In the picosecond range of pulse duration, record high values of peak power as well as price of surge of the output voltage and power were achieved.

An unexpected function was that neither closing nor opening buttons were required in the pulse compression system. The pulse boosting in power and its compression in time occurred automatically during the flow of the pulse amongst magnetic compression lines.

The researchers are servicing an additional stage of energy compression that can be utilized to create powerful microwave oscillations and also to research the development of electric discharges in numerous dielectric media at exceptionally high electric fields.