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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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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Latest News
NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
E. Loomis, S. R. Greenfield, S. N. Luo, R. Johnson, T. Shimada, J. Cobble, A. Seifter, D. S. Montgomery
Fusion Science and Technology | Volume 55 | Number 2 | February 2009 | Pages 152-162
Technical Paper | doi.org/10.13182/FST09-A4068
Articles are hosted by Taylor and Francis Online.
Single crystals of beryllium were illuminated with nanosecond X-ray pulses generated from laser irradiated (~1.5 × 1014 W/cm2) gold targets. The characteristic gold M-band centered at 2.5 keV was measured by time-integrated transmission grating spectroscopy and a time-resolved (spectrally integrated) X-ray photodiode through beryllium targets of various thickness. Approximately decaying exponential temperature profiles were predicted to be induced in 100- and 160-m-thick single crystal targets producing nearly instant surface motion as measured by free surface velocity interferometry. This temperature profile gave rise to free surface (opposite to drive laser surface) velocity histories in a c-axis single crystal and a (10[overbar]10) single crystal in which large initial acceleration gave way to lower (ramped) acceleration due to the internal temperature gradient. A smooth rise to the peak velocity was then followed by a sharp release originating from the free surface nearest to the laser drive. Differences between the velocities in each of these regions were found between the two single crystals investigated, which were due to the thermal expansion properties as a function of direction (including plasticity). These results can be used to predict the behavior of preheated polycrystalline targets relevant to instability seeding in inertial confinement fusion ablators.