APS Performance Summary - Update

Gross, J ; Kozioziemski, B ; Waters, A ; Martz, H

Lawrence Livermore National Laboratory

关键词: Us National Ignition Facility;    Stability;    Geometry;    Targets;    42 Engineering;   

DOI  :  10.2172/15014725
RP-ID  :  UCRL-TR-207260
RP-ID  :  W-7405-ENG-48
RP-ID  :  15014725

美国|英语

来源: UNT Digital Library

【 摘 要 】

High Energy Density Physics (HEDP) Experiments play an important role in corroborating the improved physics codes that underlie LLNL's Stockpile Stewardship mission. Conducting these experiments, whether on the National Ignition Facility (NIF) or another national facility such as Omega, will require not only improvement in the diagnostics for measuring the experiment, but also detailed knowledge of the as-built target components and assemblies themselves. To assist in this effort, a defined set of well-known reference standards have been built and are being used to quantify the performance of different characterization techniques. Without the critical step of using reference standards for qualifying characterization tools there can be no verification of either commercial or internally-developed characterization techniques and thus there is an uncertainty in the input to the as-built physics codes. In FY03, two reference standards were fabricated and characterized using metrology tools. One of the reference standards was built with a cylindrical geometry and the second reference standard was built with a spherical geometry. The standards were designed for manufacturability, stability, and to provide a range of features that can be measured using NDE methods. Detailed information about these methods has been previously documented.