Title :
Ultrafast laser generation of hard X-rays
Author_Institution :
E.L. Ginzton Lab., Stanford Univ., CA, USA
fDate :
10/1/1992 12:00:00 AM
Abstract :
Efficient generation of X-rays above 20 keV was demonstrated when the tight focus of a 60-mJ, 120-fs laser was incident on a solid. It is estimated that 0.3% of the laser energy is converted to X-rays between 20 and 1000 keV when the target is solid tantalum. At least 106 photons above 1 MeV are generated with each shot. The X-ray yield is proportional to the Z of the target, and scales as the 3/2 power of the incident laser energy
Keywords :
X-ray production; high-speed optical techniques; laser beam applications; tantalum; 0.5 to 2 MeV; 120 fs; 20 to 1000 keV; 60 mJ; X-ray yield; hard X-rays; incident laser energy; solid; solid Ta; tight focus; ultrafast laser generation; Optical pulses; Plasma density; Plasma measurements; Plasma sources; Plasma x-ray sources; Power lasers; Solid lasers; X-ray detection; X-ray detectors; X-ray lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
