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DE200515013175

Publication Date	2000
Personal Author	Runkel, M.; Burnham, A. K.; Milam, D.; Sell, W.; Feit, M.; Rubenchik, A.
Page Count	20
Abstract	Results are reported from recently performed bulk-damage, pulse-scaling experiments on DKDP tripler samples taken from NIF-size, rapid-growth boule BD7. The tests were performed on LLNL's Optical Sciences Laser. A matrix of samples was exposed to single shots at 351 mn (3 omega) with average fluences from 4 to 8 J/cm2for pulse durations of 1, 3 and 10 ns. The damage sites were scatter-mapped after testing to determine the damage evolution as a fimction of local beam fluence. The average bulk damage microcavity (pinpoint) density varied nearly linearly with fluence with peak values of approximately 16,000 pp/mm3 at 1 ns, 10,000 pp/mm at 3 ns and 400 pp/mm3 at 10 ns for fluences in the 8-10 J/cm(sup 2) range. The average size of a pinpoint was 10(+14,-9) pm at 1 ns, 37 + or - 20 pm at 3 ns and -110 pm at 10 ns, although all pulse durations produced pinpoints with a wide distribution of sizes. Analysis of the pinpoint density data yielded pulse-scaling behavior of t (sup 0.35).
Keywords	KDP DKDP Bulk laser damage Pulse scaling Obscuration Frequency conversion
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	200601

Results of Pulse-Scaling Experiments on Rapid-Growth DKDP Triplers Using the Optical Sciences Laser at 351 nm.

Results of Pulse-Scaling Experiments on Rapid-Growth DKDP Triplers Using the Optical Sciences Laser at 351 nm.
DE200515013175

Publication Date	2000
Personal Author	Runkel, M.; Burnham, A. K.; Milam, D.; Sell, W.; Feit, M.; Rubenchik, A.
Page Count	20
Abstract	Results are reported from recently performed bulk-damage, pulse-scaling experiments on DKDP tripler samples taken from NIF-size, rapid-growth boule BD7. The tests were performed on LLNL's Optical Sciences Laser. A matrix of samples was exposed to single shots at 351 mn (3 omega) with average fluences from 4 to 8 J/cm2for pulse durations of 1, 3 and 10 ns. The damage sites were scatter-mapped after testing to determine the damage evolution as a fimction of local beam fluence. The average bulk damage microcavity (pinpoint) density varied nearly linearly with fluence with peak values of approximately 16,000 pp/mm3 at 1 ns, 10,000 pp/mm at 3 ns and 400 pp/mm3 at 10 ns for fluences in the 8-10 J/cm(sup 2) range. The average size of a pinpoint was 10(+14,-9) pm at 1 ns, 37 + or - 20 pm at 3 ns and -110 pm at 10 ns, although all pulse durations produced pinpoints with a wide distribution of sizes. Analysis of the pinpoint density data yielded pulse-scaling behavior of t (sup 0.35).
Keywords	KDP DKDP Bulk laser damage Pulse scaling Obscuration Frequency conversion
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	200601