Long-lifetime low-contamination metal beam dumps for NIF spatial filters

Mary A. Norton; Charles D. Boley; James E. Murray; Kurt H. Sinz; Kurt P. Neeb

doi:10.1117/12.354212

23 July 1999 Long-lifetime low-contamination metal beam dumps for NIF spatial filters

Mary A. Norton, Charles D. Boley, James E. Murray, Kurt H. Sinz, Kurt P. Neeb

Proceedings Volume 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion; (1999) https://doi.org/10.1117/12.354212
Event: Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, 1998, Monterey, CA, United States

Abstract

The management of back reflections and leakage through the Pockels cell and polarizer switch in the NIF beamlines requires robust beam dumps that can operate unattended for thousands of shots within the confines of the vacuum spatial filters. Off-line experiments and modeling have been used to investigate the use of metal for these beam dumps. We conclude that a stainless steel beam dump will have insufficient lifetime and will safely absorb fluences in the required range, from 1 J/cm² to 4 kJ/cm², at 1 micrometers .

Citation Download Citation

Mary A. Norton, Charles D. Boley, James E. Murray, Kurt H. Sinz, and Kurt P. Neeb "Long-lifetime low-contamination metal beam dumps for NIF spatial filters", Proc. SPIE 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, (23 July 1999); https://doi.org/10.1117/12.354212

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