Optics damage inspection for the nif

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August undefined, 2024

WebThe National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory (LLNL) will routinely fire high energy shots (approaching 10 kJ per beamline) through the final optics, located on the target chamber. After a high fluence shot, exceeding 4J/cm 2 at 351 nm wavelength, the final optics will be inspected for laser-induced damage. WebJun 1, 1998 · Two optics damage inspection systems will be implemented on the National Ignition Facility (NIF), one to inspect optics within the laser and transport sections and the …

Machine learning for managing damage on NIF optics - SPIE …

WebHere we describe an overview of custom image analysis, machine learning, and deep learning methods used throughout the recycle loop for optics inspection on the NIF beamlines and off. Since 2007 we’ve used machine learning to improve accuracy and automate tedious processes to enable and inform an efficient optics recycle loop. WebJul 23, 1999 · Two optics damage inspection system will be implemented on the NIF, one to inspect optics within the laser and transport sections and the other to inspect the final optics at the target chamber. Both system use dark-field imaging technology to enhance … in the arms of the ocean song

Final optics damage inspection (FODI) for the National Ignition ...

WebMar 23, 2024 · The National Ignition Facility (NIF) laser with its 192 independent laser beams is not only the world’s largest laser but also the largest optical system ever built. With its 192 independent laser beams, the NIF requires a total of … WebOct 10, 2007 · The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory (LLNL) will routinely fire high energy shots (approaching 10 kJ per beamline) through the final optics, located on the target chamber. After a high fluence shot, exceeding 4J/cm 2 at 351 nm wavelength, the final optics will be inspected for laser-induced damage. WebJun 1, 1998 · Two optics damage inspection systems will be implemented on the National Ignition Facility (NIF), one to inspect optics within the laser and transport sections and … new homes erie colorado

Optics damage inspection for the NIF - spiedigitallibrary.org

Optics damage inspection for the NIF - DeepDyve

WebTwo optics damage inspection system will be implemented on the NIF, one to inspect optics within the laser and transport sections and the other to inspect the final optics at the … WebApr 6, 2024 · In NIF laser shots, a complex series of optics, including amplifiers, mirrors and wavelength converters, strengthens and guides laser light into the target chamber, where … new homes erithWebAug 1, 2024 · Final optics assembly (FOA) is paramount to high energy laser system. It took more than ten years for the National Ignition Facility (NIF) and Laser Megajoule Facility (LMJ) to optimize their FOA and improve output capability. However, the final optical damage limited the output capability of the NIF and LMJ. in the army now 1994 123movies

"WebApr 6, 2024 · But leaving a fused silica optic like the GDS uncoated results in a penalty in energy: at the 352-nanometer, or ultraviolet, wavelength of NIF’s lasers, 3.7 percent of the laser energy reflects up the beamline from the optic’s exit surface and must be captured by a beam dump so it won’t damage other optics. " - Optics damage inspection for the nif

Optics damage inspection for the nif

Behavioral Model of High Performance Camera for NIF Optics Inspection …

WebJul 23, 1999 · Optics damage inspection for the NIF Thompson, Calvin E. 1999-07-23 00:00:00 Two optics damage inspection system will be implemented on the NIF, one to inspect optics within the laser and transport sections and the other to inspect the final optics at the target chamber. Both system use dark-field imaging technology to enhance … WebOct 23, 2007 · The FODI (Final Optics Damage Inspection) system has been developed for this purpose, with requirements to detect laser-induced damage initiation and to track and size it's the growth to the point at which the optic is removed and the site mitigated. The FODI system is the 'corner stone' of the NIF optic recycle strategy.

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WebOptics Inspection System NIF’s Final Optics Damage Inspection system, when extended into the Target Chamber from a diagnostic instrument manipulator, can produce images of all 192 beamline final optics assemblies in just a few minutes. Deformable Mirrors These adjustable mirrors are used to correct for aberrations that accumulate in the laser WebAug 30, 2007 · NIF's target chamber will be mounted with 48 Final Optics Assemblies (FOAs) to convert the laser light from infrared to ultraviolet and focus it precisely on the target. Following a NIF shot, the optical components of each FOA must be carefully inspected for damage by the FODI to ensure proper laser performance during subsequent experiments.

WebOct 23, 2007 · The FODI (Final Optics Damage Inspection) system has been developed for this purpose, with requirements to detect laser-induced damage initiation and to track and size it's the growth to the point at which the optic is removed and the site mitigated. The FODI system is the 'corner stone' of the NIF optic recycle strategy. WebJul 28, 2024 · The PDS even has its own final optics damage inspection (FODI) camera, which peers back down the beamline to detect laser-induced optical damage, just as it …

WebTwo optics damage inspection system will be implemented on the NIF, one to inspect optics within the laser and transport sections and the other to inspect the final optics at the target chamber. Both system use dark-field imaging technology to enhance defect contrast. Details of each system design will be provided. A functional optics damage inspection system … WebDec 1, 2012 · Lastly, although NIF uses an online optics inspection system called the Final Optics Damage Inspection (FODI) system [9] to measure damage in-situ, these inspections are not taken after every shot ...

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Webused for manufacturing and inspection. The standard is widely recognized by the international optics vendor community. An increasing number ofU. S. optics vendors are also cognizant ofthe standard. The NIF optics procurement of 7,000 large optics with aperture sizes 40cm and over 20,000 small optics with aperture sizes new homes erinWebDec 1, 2012 · Optics Inspection for NIF is a large, multi-disciplinary effort requiring specialists from many fields. Physical optics scientists and designers specify and guide … new homes erwin tnWebTwo optics damage inspection systems will be implemented on the National Ignition Facility (NIF), one to inspect optics within the laser and transport sections and the other to … new homes essex county