Experimental study on hard Xray generation of REB in azimuthal magnetic field

Experimental study on hard Xray generation was carried out on Ｆlash 2 accelerator, with the method of REB transported in a low pressure gas via azimuthal magnetic field and interacted with Ta target. At 47cm transporting distance, the measured areal integral of hard Xray dose rate was 2.1×１０１０Gy·cm2/s,total areal integral of hard X-ray dose was 1 843Gy·cm2, and Xray convert rate was 108Gy·cm2/kJ．