Generation of EM radiations using intense electron beam produced in vacuum

Conference · Tue Jul 01 04:00:00 EDT 2014

DOI:https://doi.org/10.1109/DEIV.2014.6961752· OSTI ID:22597180

Shukla, R.; Shyam, A.; Verma, R.; Deb, P.; Mishra, E.

The results of a pulse power generator driving an axial virtual cathode oscillator are being presented in this paper as a source of high power microwave (HPM) radiations. The electron beam generator is also modified to attain the intense X-ray burst. The pulse power generator used for these applications is common and is having 10 ohms as its characteristic impedance with 50nS of pulse width. The peak charging voltage of the pulse forming line is 450 kV and hence 225 kV and 22.5 kA is peak voltage and peak current delivery capabilities respectively for the pulse power generator. The peak electrical power of the generator is 5GW for a matched load. The charging power supply for the pulse forming line consists of a high voltage generator made by pulse transformer and charging the pulse forming line in the first cycle of the charging pulse. To utilize the energy of the primary capacitive storage efficiently the pulse transformer is having 0.8 coupling coefficient between its primary and the secondary. The axial vircator chamber is evacuated to attain the vacuum of 2 x 10{sup -4} torr for the HPM application. In the case of modified electron beam chamber for the generation of X-rays the vacuum of same order is used. The pulse forming line is made using equal lengths of high voltage transmission lines, each having a length of 10 meters, connected in the parallel to give a net source impedance of 10 ohm. The pulse power generator can operate in repetitive mode and hence the HPM as well as X-rays may be generated in the repetitive burst. (author)

• Research Organization: Bhabha Atomic Research Centre, Mumbai (India); Indian Vacuum Society, Mumbai (India)
• OSTI ID: 22597180
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ELECTRIC DISCHARGES
ELECTRON BEAMS
POWER SUPPLIES
SPARK GAPS
TRANSFORMERS