Menon Rakhee, Mitra S, Patel A S, Kumar R, Singh G, Senthil K, Kumar Ranjeet, Kolge T S, Roy Amitava, Acharya S, Biswas D, Sharma Archana
Accelerator and Pulse Power Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
Homi Bhabha National Institute, Trombay, Mumbai 400 085, India.
Rev Sci Instrum. 2017 Aug;88(8):083307. doi: 10.1063/1.4998994.
Flash X-ray sources driven by pulsed power find applications in industrial radiography, and a portable X-ray source is ideal where the radiography needs to be taken at the test site. A compact and portable flash X-ray (FXR) system based on a Marx generator has been developed with the high voltage fed to the FXR tube via a cable feed-through arrangement. Hard bremsstrahlung X-rays of few tens of nanosecond duration are generated by impinging intense electron beams on an anode target of high Z material. An industrial X-ray source is developed with source size as low as 1 mm. The system can be operated from 150 kV to 450 kV peak voltages and a dose of 10 mR has been measured at 1 m distance from the source window. The modeling of the FXR source has been carried out using particle-in-cell and Monte Carlo simulations for the electron beam dynamics and X-ray generation, respectively. The angular dose profile of X-ray has been measured and compared with the simulation.
