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Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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2024 ANS Winter Conference and Expo
November 17–21, 2024
Orlando, FL|Renaissance Orlando at SeaWorld
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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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Latest News
NRC restores expiration dates for renewed Turkey Point licenses
The Nuclear Regulatory Commission announced this week that it has restored the expiration dates of the Turkey Point nuclear power plant's units 3 and 4 subsequent license renewals (SLR) to July 19, 2052, and April 10, 2053, respectively.
H. L. Wilkens, A. V. Hamza, A. Nikroo, N. E. Teslich
Fusion Science and Technology | Volume 49 | Number 4 | May 2006 | Pages 809-812
Technical Paper | Target Fabrication | doi.org/10.13182/FST06-A1205
Articles are hosted by Taylor and Francis Online.
The current point design for ignition targets for the National Ignition Facility has a beryllium ablator. As Be is essentially impermeable to hydrogen, conceptually the shell will be filled by boring through the shell with a laser, then attaching a fill-tube. Examination of focused ion beam (FIB) technology is under way as an alternative to laser drilling. Holes of 40, 20, and 15 m diameter have been successfully ion milled through a 47 m thick Be layer. These holes are clean, though take several hours to make, and the geometry is limited by the aspect ratio of the depth to the diameter of the hole. Work was also done to investigate the possibility of using a FIB to create a counter-bore for the insertion and attachment of a fill-tube in a Be shell which has a pre-existing hole. Because the FIB can be controlled to sub-micron scales, the counter-bore can be easily centered on the through-hole and the side-walls and base of the counter-bore can be made very smooth. Finally, a proof-of-principle experiment was made to show that a Be wire could be attached to an in-situ micromanipulator and then be placed inside the counter-bore.