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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
Standards Program
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.
A. Herrmann, B. Sieglin, M. Faitsch, ASDEX Upgrade Team
Fusion Science and Technology | Volume 69 | Number 3 | May 2016 | Pages 569-579
Technical Paper | doi.org/10.13182/FST15-187
Articles are hosted by Taylor and Francis Online.
Monitoring the surface temperature of in-vessel components is part of machine protection. The surface temperature itself and the resulting temperature of the interface to the cooling structure have to be taken into account. The tolerated surface temperature is not a fixed quantity but depends on the heat load scenario. The interface temperature can be calculated by solving the heat diffusion equation and determining the temperature profile inside the target. Surface effects and parasitic radiation falsify the estimated temperature, which is higher than the real bulk temperature. From the machine protection point of view, the contributions are inherently safe. They might result in an early alarm, not justified by the target temperature itself reducing the tolerated operation range. Real-time characterization and quantification can be done by considering the temporal evolution of the measured surface temperature. This is recommended to be done by heat load calculation. Infrared (IR) systems under development allow one to calculate the heat load from the measured photon flux in real time. The impact of surface effects and parasitic radiation on the calculated temperature is dependent on wavelength. A suitable compromise for an IR system is a mid-wave IR system. It should be combined with a near-IR system for temperature validation at higher temperatures.