Mobile Cyclic Accelerator Based on Ironless Pulsed Betatron. Results of Testing Powering

Abstract

The authors describe the mobile cyclic accelerator based on the ironless pulsed betatron. The possibility of such accelerators application as a part of mobile radiographic complexes is illustrated. These complexes are intended for the radiography of dynamic objects with large optical thicknesses located in the explosion-proof chamber (EPC). Such complexes allow optimizing the radiography geometry in the hydrodynamic experiment at the expense of the possible location change of the radiator and recorder relative to the investigation object. The geometry optimization allows increasing the X-ray radiation intensity in the recorder plane at least twice if compare with the active Russian radiographic complexes. The authors provide the output parameters of the mobile cyclic accelerator at its testing powering on the test bench. The value of a capacitive storage of the pulsed powering system of the betatron electromagnet was C=900µF (Cmax=1800 µF). The thickness of the lead test object examined with X-rays was ≈100 mm at 4 m from the tantalum target; the dimension of the target was 6×6 mm2. The full width of the output gamma pulse at half maximum in a single frame mode was ≈100 ns. The dimension of the radiation source was ≈ 6×3 mm2.