Brightness and duration of x-ray line sources irradiated with intense 0. 53-. mu. m laser light at 60 and 120 ps pulse width
Short, bright pulses of x-ray line emission are needed for flash radiography of laser-fusion targets. The experiments described here were carried out with the nominal laser pulse lengths of 60 and 120 ps. The M..-->..L spectra were for Y (2.00--2.35 keV), Pd (2.95--3.46 keV), and Cs (4.43--5.15 keV), and the L..-->..K spectra were for Cl (2.790 keV), Ti (4.749 keV), Mn (6.180 keV), and Ni (7.804 keV). The L..-->..K energies are for the 1s2p /sup 1/P/sub 1/..-->..1s/sup 2/ /sup 1/S/sub 0/ transition. Both the duration and the absolute brightness of the x-ray line emission were measured. Even at 60 ps, the x-ray flashes from Y, Pd, and Ti were all bright and of duration comparable to or shorter than the laser pulse length. In particular, the Pd M..-->..L lines were as bright as 2 x 10/sup 12/ photons/jX and the Ti L..-->..K lines as bright as 5 x 10/sup 10/ photons/jX.
- Research Organization:
- Lawrence Livermore National Laboratory, University of California, P.O. Box 808, Livermore, California 94550
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7164200
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 34:6; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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700101* -- Fusion Energy-- Plasma Research-- Confinement
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74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
BRIGHTNESS
CESIUM
CHLORINE
CONVERSION
ELECTROMAGNETIC RADIATION
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY CONVERSION
EQUIPMENT
HALOGENS
IRRADIATION
K SHELL
LASER RADIATION
LIFETIME
M SHELL
MANGANESE
METALS
MICRORADIOGRAPHY
NICKEL
NONMETALS
OPTICAL PROPERTIES
PALLADIUM
PHYSICAL PROPERTIES
PLATINUM METALS
PULSE RISE TIME
PULSED IRRADIATION
RADIATION SOURCES
RADIATIONS
SPECTRA
TARGETS
TIMING PROPERTIES
TITANIUM
TRANSITION ELEMENTS
X-RAY EQUIPMENT
X-RAY SOURCES
X-RAY SPECTRA
YTTRIUM