MeV-Class Electron Generation with Compact Generator Using Ultra Short Pulse Laser

摘要

A compact laser electron source usable instead of radioisotopes as an X-ray source for nondestructive diagnosis was developed. High-energy electrons were generated by an ultrashort pulse focused on a thin tape target. The laser energy was only 15 mJ. The pulse duration and beam diameter of the laser beam were 140 fs and 10 mm, respectively. Electron energies above 1 MeV were obtained with this compact laser electron source.