NIF capsule performance modeling

The Smoothing Performance of Ultrafast Pickets on the NIF

LLE Review, Volume 86 79 Introduction In the direct-drive approach to inertial confinement fusion (ICF), the focal spots of a symmetrically arranged cluster of high-intensity, ultraviolet (UV) laser beams directly irradiate a capsule.1,2 The base-line design for a direct-drive ignition target on the National Ignition Facility (NIF) uses shock preheat to control the isentrope of the ablation sur...

Nif Ignition

Development of a krypton-doped gas symmetry capsule platform for x-ray spectroscopy of implosion cores on the NIF.

The electron temperature at stagnation of an ICF implosion can be measured from the emission spectrum of high-energy x-rays that pass through the cold material surrounding the hot stagnating core. Here we describe a platform developed on the National Ignition Facility where trace levels of a mid-Z dopant (krypton) are added to the fuel gas of a symcap (symmetry surrogate) implosion to allow for...

Capsule Network Performance on Complex Data

In recent years, convolutional neural networks (CNN) have played an important role in the field of deep learning. Variants of CNN’s have proven to be very successful in classification tasks across different domains. However, there are two big drawbacks to CNN’s: their failure to take into account of important spatial hierarchies between features, and their lack of rotational invariance [1]. As ...

Assembly line performance and modeling

Automobile sector forms the backbone of manufacturing sector. Vehicle assembly line is important section in automobile plant where repetitive tasks are performed one after another at different workstations. In this thesis, a methodology is proposed to reduce cycle time and time loss due to important factors like equipment failure, shortage of inventory, absenteeism, set-up, material handling, r...