X-RAYS EMISSION FROM LASER INDUCED COPPER PLASMA UNDER EXTERNAL MAGNETIC FIELD

摘要

Influence of external magnetic field on space and time resolved X-ray emission from laser plasma is investigated. 4 N pure Copper target (2 × 2 × 0.2 cm~3) is irradiated with Nd: YAG Laser . Magnetic field of strength 1.2 Tesla (T) is applied perpendicular to the target normal. A computer controlled pinhole CCD based image capturing system was employed for space resolved X-Rays imaging. PIN photodiode connected to digital storage oscilloscope through a biasing circuit was employed for storing time resolved x-rays signals. The results reveal that the X-rays emission intensity as well as energy enhances under the influence of external magnetic field.