Construction of the Serial-Exposure Type of High Intensity Flash X-ray Generator Having Variable Energies for Biomedical Radiography

Abstract

The construction of a serial (triple) exposure type of high intensity flash x-ray generator having variable energies for biomedical radiography is described. This generator consisted of the following components: two high voltage generators (positive and negative), two voltage dividers, two types of high and low voltage pulsers with as (SF⁶) gap switches, small-sized triver devices with a voltage of about -50 kV, a trigger control system with three light outputs with a time resolution of under a microsecond, a high power gas diode with three terminals using field emission, one turbo molecular pump, and two evacuated remote flash x-ray tubes, each of a new and different type with a coaxial cable. In the case of using a single flash x-ray tube, the pulsers were charged to the same or different energies from - 100 kV to+100 kV by using two voltage dividers and were connected to the flash x-ray tube through a hi: power diode.