Scorpius: the Development of a New Multi-Pulse Radiographic System
2017 IEEE 21st International Conference on Pulsed Power (PPC)(2017)
Abstract
One of the original drivers behind the development of pulsed power was the need for short-pulse (flash) x-ray sources for hydrodynamic tests. These systems continue to be an important diagnostic for the evaluation of hydrodynamic phenomena. In the United States, three primary facilities provide this function: Flash X-Ray (FXR) at Lawrence Livermore National Laboratory (LLNL); the Dual Axis Radiographic Hydrodynamic Test (DARHT) Facility at Los Alamos National Laboratory (LANL); and Cygnus at the Nevada National Security Site (NNSS). FXR and DARHT provide highly penetrating radiographic capabilities but are limited in the types of hydrodynamic experiments that can be performed, while Cygnus can support a larger range of experiments, but does not provide the same penetrating capability. To fill this gap in hydrodynamic experimental capability, the National Nuclear Security Agency (NNSA) has recently issued a set of high-level requirements describing a radiographic capability similar to that of DARHT, but located in a facility similar to Cygnus. In response to these requirements, a project called Scorpius has been developed as a joint partnership between LANL, LLNL, Sandia National Laboratory (SNL), and the NNSS. A key requirement is the delivery of multiple (2 or more) radiographic images along a single axis in a short time scale. This requirement effectively limits the possible system choices to a linear induction accelerator (LIA). However, there are several families of multi-pulse LIA architectures from which to choose. This paper describes the high-level system requirements for Scorpius as well as the evaluation of technologies and systems that might meet those requirements. In addition, the current preferred option and the initial conceptual designs are discussed.
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Key words
Scorpius,multipulse radiographic system,original drivers,pulsed power,short-pulse x-ray sources,hydrodynamic tests,hydrodynamic phenomena,primary facilities,Flash X-Ray,FXR,Lawrence Livermore National Laboratory,LLNL,Dual Axis Radiographic Hydrodynamic Test Facility,DARHT,Los Alamos National Laboratory,LANL,Cygnus,Nevada National Security Site,NNSS,highly penetrating radiographic capabilities,hydrodynamic experiments,penetrating capability,hydrodynamic experimental capability,National Nuclear Security Agency,high-level requirements,radiographic capability,Sandia National Laboratory,key requirement,short time scale,possible system choices,multipulse LIA architectures,high-level system requirements,multiple radiographic images,linear induction accelerator,initial conceptual designs
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