Accession Number:

ADP007048

Title:

X-Ray Generation by High Irradiance Exawatt-Per-Square Centimeter Subpicosecond Lasers,

Descriptive Note:

Corporate Author:

LOS ALAMOS NATIONAL LAB NM

Personal Author(s):

• Kyrala, G. A.
• Fulton, R. D.
• Casperson, D. E.
• Wahlin, E. K.
• Jones, L. A.

Report Date:

1992-05-22

Pagination or Media Count:

5.0

Abstract:

We have studied the interaction of 290-fsec, 308-nm laser pulses with Aluminum targets at irradiances exceeding 5 x 10 to the 18th Wsq. cm. 5 EWsq. cm. The x-ray spectrum shows a hot electron component with a characteristic temperature of 30 keV, and a low temperature component of 1 keV. Imaging of the x-rays shows an emission region of few micrometers for the hot component and a larger region for the 1 keV emission. The x-ray brightest lines radiating 0.6 of the incident laser light energy. The spectral luminosity of the L sub alpha line was measured to be 3 x 10 to the 14th Wsq. cm.eVsr.

Descriptors:

• *ALUMINUM
• *X RAY LASERS
• *X RAY LASERS
• *X RAY SPECTRA
• *COHERENT OPTICAL RADIATION
• PULSED LASERS
• LUMINOSITY
• LUMINOSITY
• IRRADIATION
• COHERENT RADIATION
• SHORT WAVELENGTHS
• OPTICAL IMAGES
• SYMPOSIA

Subject Categories:

• Optics
• Electrical and Electronic Equipment
• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE