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Analysis of Bulk DKDP Damage Distribution, Obscuration and Pulse Length Dependence.

DE200515013197

Publication Date	2000
Personal Author	Feit, M. D.; Rubenchik, A. M.; Runkel, M.
Page Count	12
Abstract	Recent Lawrence Livermore National Laboratory (LLNL) experiments reported elsewhere at this conference explored the pulse length dependence of 351 nm bulk damage incidence in DKDP. The results found are consistent, in part, with a model in which a distribution of small bulk initiators is assumed to exist in the crystal and the damage threshold is determined by reaching a critical temperature. The observed pulse length dependence can be explained as being set by the most probable defect capable of causing damage at a given pulse length. Analysis of obscuration in side illuminated images of the damaged region yields estimates of the damage site distributions that are in reasonable agreement with the distributions experimentally directly estimated
Keywords	Inertial confinement fusion Laser pulses Damage assessment Crystals Rasters Laser damage Obscuration Damage distribution Lawrence Livermore National Laboratory (LLNL) Pulse length scaling
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200602

Analysis of Bulk DKDP Damage Distribution, Obscuration and Pulse Length Dependence.

Analysis of Bulk DKDP Damage Distribution, Obscuration and Pulse Length Dependence.
DE200515013197

Publication Date	2000
Personal Author	Feit, M. D.; Rubenchik, A. M.; Runkel, M.
Page Count	12
Abstract	Recent Lawrence Livermore National Laboratory (LLNL) experiments reported elsewhere at this conference explored the pulse length dependence of 351 nm bulk damage incidence in DKDP. The results found are consistent, in part, with a model in which a distribution of small bulk initiators is assumed to exist in the crystal and the damage threshold is determined by reaching a critical temperature. The observed pulse length dependence can be explained as being set by the most probable defect capable of causing damage at a given pulse length. Analysis of obscuration in side illuminated images of the damaged region yields estimates of the damage site distributions that are in reasonable agreement with the distributions experimentally directly estimated
Keywords	Inertial confinement fusion Laser pulses Damage assessment Crystals Rasters Laser damage Obscuration Damage distribution Lawrence Livermore National Laboratory (LLNL) Pulse length scaling
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200602