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Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Fusion Science and Technology
Latest News
Proving DRACO will deliver
The United States is now closer than it has been in over five decades to launching the first nuclear thermal rocket into space, thanks to DRACO—the Demonstration Rocket for Agile Cislunar Orbit.
Russell W. Kincaid, Mohamed A. Bourham, John G. Gilligan
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 834-839
Plasma Fuelingand Heating, Control, and Currentdrive | doi.org/10.13182/FST96-A11963041
Articles are hosted by Taylor and Francis Online.
Modifications to the electrothermal plasma gun SIRENS (Surface Interaction Research Experiment at North Carolina State University) have been completed to allow for acceleration experiments using plastic pellets. The barrel is assembled from separate sections of 15 cm each, such that the acceleration path could be varied from 15 to 60 cm to study the effect of ablation and viscous drag, optimize the performance of the gun, and to provide longer acceleration paths for longer pulse lengths. A diagnostics system for velocity and position of the pellet is installed, which includes a four-branch break-wire measuring array situated at various locations along the acceleration path. A pulse forming network (PFN) was used to provide variable pulse lengths for the experimental shots. The longer pulse length allowed the pellet to accelerate for a longer period of time and thus reach higher exit velocities. Pressures of 100-600 MPa can be achieved, depending on the pulse duration and input energy to the source. Modifications have been implemented to the 1-D, time dependent code ODIN (One Dimensional INterior code) to include pellet friction, momentum, and kinetic energy with options of variable barrel length. The code results in the new version, POSEIDON (Pellets On SIRENS Experimental Device modeled One-D), compare favorably with experimental data and with code results from ODIN. Predicted values show an increased pellet velocity along the barrel length, achieving 2 km/s exit velocity. Measured velocity, at three locations along the barrel length, showed good correlation with predicted values. The code has also been used to investigate the effectiveness of longer pulse length on pellet velocity using simulated ramp up and down currents with flat top, and triangular current pulses with early and late peaking.