DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
Ultralshort High Peak Power Lasers and Generation of Hard Incoherent X-Rays,
STANFORD UNIV CA EDWARD L GINZTON LAB OF PHYSICS
Pagination or Media Count:
The design, construction, and use of high peak power infrared laser pulses for the generation of diagnostic 20 keV to 150 keV x-rays are discussed. A review of recent laser-plasma generation of diagnostic x-rays is presented. The advantages of such sources include subpicosecond pulse duration and extremely small source size. Because of their short duration, it shoud be possible to form time-gated medical images with up to eight times less x-ray flux than with conventional x-ray sources. Details of a next generation laser driver are also presented. Generation of 20-fs pulses from a regeneratively initiated, self-mode-locked Ti Sapphire laser is described. Techniques for amplification of these pulses to peak powers of 5 TW are presented.
APPROVED FOR PUBLIC RELEASE