Simulations of indirectly driven gas-filled capsules at the National Ignition Facility
Not Available
Weber, S. V.↗
Engineering topics
Herrmann, H
Publications and source records attributed to Herrmann, H.
The High-Foot Implosion Campaign on the National Ignition Facility
Abstract not provided
70 PLASMA PHYSICS AND FUSION TECHNOLOGY↗
Nuclear Physics using NIF
The National Ignition Facility (NIF) is the world's premier inertial confinement fusion facility designed to achieve sustained thermonuclear burn (ignition) through the compression of hydrogen isotopic fuels to densities in excess of 10{sup 3} g/cm{sup 3} and temperatures in excess of 100 MK. These plasma conditions are very similar to those found in the cores of Asymptotic Giant Branch (AGB) stars where the s-process takes place, but with a neutron fluence per year 10{sup 4} times greater than a star. These conditions make NIF an excellent laboratory to measure s-process (n,{gamma}) cross sections in a stellar-like plasma for the first time. Starting in Fall 2009, NIF has been operating regularly with 2-4 shots being performed weekly. These experiments have allowed the first in situ calibration of the detectors and diagnostics needed to measure neutron capture, including solid debris collection and prompt {gamma}-ray detection. In this paper I will describe the NIF facility and capsule environment and present two approaches for measuring s-process neutron capture cross sections using NIF.
08 HYDROGEN↗
Relative Economy of Different Methods of Airplane Construction
A comparison of the relative economy of airplane construction shows that monoplanes are cheaper than biplanes; that all-metal construction is much more expensive than mixed construction; that multi-engine airplanes are more expensive than single-engine types of the same carrying capacity and speed;that the cost of airplanes is materially reduced by increasing their size without increasing the number of engines. The greatest economy usually coincides with the best aerodynamic and static conditions and the cost is always increased by safety requirements.
Herrmann, H↗
Analysis of flight and wind-tunnel tests on Udet airplanes with reference to spinning characteristics
This report presents an analysis of results of wind-tunnel tests conducted at the D.V.L. Values were determined for the effectiveness of all the controls at various angles of attack. The autorotation was studied by subjecting the rotating model to an air blast.
FLIGHT & WIND TUNNEL↗
Seaplanes Floats and Hulls. Part II
Different float designs are presented and the investigations are discussed.
SEAPLANES - FAIREY N 4 "TITANIA"↗
Seaplanes floats and hulls. Part I
This part of the report presents characteristics and graphic representations of water resistance. The laws of similarity are discussed as well as the theory of model tests. The test procedures and model tests of other countries are also discussed.
SEAPLANES - FELIXSTOWE F TYPES↗