Laser Damage Testing Of Small Optics For The National Ignition Facility PDF Download
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Release | : 2004 |
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Download Laser Damage Testing of Small Optics for the National Ignition Facility Book in PDF, ePub and Kindle
A damage test procedure was established for optical components that have large incident beam footprints. The procedure was applied on coated samples for a high powered 1053 nm, 3-ns pulse length laser system.
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Release | : 1999 |
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Download National Ignition Facility Small Optics Laser-induced Damage and Photometry Measurements Program Book in PDF, ePub and Kindle
The National Ignition Facility will require upwards of 25,000 small optical components in its various beam conditioning and diagnostic packages. A quality control program designed to ensure that the elements meet the required specifications will test these optical elements. For many of the components, damage performance is one of the critical specifications, which will require state-of-the-art performance from the industry participants. A program was initiated to understand the current performance level of such optics. The results of this study as it pertains to laser-induced damage is shown. The use of ratio reflectometry is also addressed as the method of choice for photometry measurements on these industry supplied optics. Key words: Optical coatings, qualification, specifications, laser-induced damage, photometry, ratio reflectometry.
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Total Pages | : 560 |
Release | : 1972 |
Genre | : Laser beams |
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Download Laser Induced Damage in Optical Materials Book in PDF, ePub and Kindle
Author | : Alexander J. Glass |
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Total Pages | : 444 |
Release | : 1976 |
Genre | : Laser beams |
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Download Laser Induced Damage in Optical Materials, 1975 Book in PDF, ePub and Kindle
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Release | : 1999 |
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Download NIF Small Optics Laser Damage Test Specifications Book in PDF, ePub and Kindle
The Laser Damage Group is currently conducting tests on small optics samples supplied for initial evaluation of potential NIF suppliers. This document is meant to define the specification of laser-induced damage for small optics and the test methods used to collect the data. A rating system which will be applied for vendor selection is presented. Presented here is the plan for qualification of NIF small optics vendors based on laser damage performance. The raster scan test method was chosen in order to provide for testing of significant areas of the samples. The vendor performance at a given fluence is categorized as either ''qualified'', ''probable'', or ''fail'', depending on the level of damage observed. This binning system allows a conservative stance for qualification, while providing some insight into lever of risk associated with a lowering on the specifications. The R: 1 mapping technique is reserved in cases where comparisons, not qualifications are needed. Once suppliers are selected, an less intensive pass/fail test will be instituted for production optics.
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Total Pages | : 275 |
Release | : 1900 |
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Download Betænkninger afgivne af den af Finansministeriet nedsatte Landbrugstoldkommission Book in PDF, ePub and Kindle
Indeholder en flertals betænkning og en mindretals betænkning
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Release | : 1998 |
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Download Automated Damage Test Facilities for Materials Development and Production Optic Quality Assurance at Lawrence Livermore National Laboratory Book in PDF, ePub and Kindle
The Laser Program at LLNL has developed automated facilities for damage testing optics up to 1 meter in diameter. The systems were developed to characterize the statistical distribution of localized damage performance across large-aperture National Ignition Facility optics. Full aperture testing is a key component of the quality assurance program for several of the optical components. The primary damage testing methods used are R:1 mapping and raster scanning. Automation of these test methods was required to meet the optics manufacturing schedule. The automated activities include control and diagnosis of the damage-test laser beam as well as detection and characterization of damage events.
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Total Pages | : 802 |
Release | : 1994 |
Genre | : Laser materials |
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Download Laser Induced Damage in Optical Materials Book in PDF, ePub and Kindle
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Release | : 1998 |
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Download Vendor-based Laser Damage Metrology Equipment Supporting the National Ignition Facility Book in PDF, ePub and Kindle
A sizable laser damage metrology effort is required as part of optics production and installation for the 192 beam National Ignition Facility (NIF) laser. The large quantities, high damage thresholds, and large apertures of polished and coated optics necessitates vendor-based metrology equipment to assure component quality during production. This equipment must be optimized to provide the required information as rapidly as possible with limited operator experience. The damage metrology tools include: (1) platinum inclusion damage test systems for laser amplifier slabs, (2) laser conditioning stations for mirrors and polarizers, and (3) mapping and damage testing stations for UV transmissive optics. Each system includes a commercial Nd:YAG laser, a translation stage for the optics, and diagnostics to evaluate damage. The scanning parameters, optical layout, and diagnostics vary with the test fluences required and the damage morphologies expected. This paper describes the technical objectives and milestones involved in fulfilling these metrology requirements.
Author | : Brian E. Newnam |
Publisher | : ASTM International |
Total Pages | : 452 |
Release | : 1986 |
Genre | : Laser beams |
ISBN | : 9780803109605 |
Download Laser Induced Damage in Optical Materials Book in PDF, ePub and Kindle