ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
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.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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
IEA report: Challenges need to be resolved to support global nuclear energy growth
The International Energy Agency published a new report this month outlining how continued innovation, government support, and new business models can unleash nuclear power expansion worldwide.
The Path to a New Era for Nuclear Energy report “reviews the status of nuclear energy around the world and explores risks related to policies, construction, and financing.”
Find the full report at IEA.org.
J. L. Bates
Nuclear Science and Engineering | Volume 21 | Number 1 | January 1965 | Pages 26-29
Technical Paper | doi.org/10.13182/NSE65-A21011
Articles are hosted by Taylor and Francis Online.
The absorption spectra for single crystal and polyerystalline UO2 have been measured between 0.6 and 15 μm at room temperature. The spectrum for UO2 resembles that of a typical semiconductor, opaque in the visible but transparent over a large portion of the infrared. An absorption edge is located at approximately 0.6 μm (2.0 eV). A large optical window extends from 3 to 13 μm. The absorption coefficient for single crystal UO2 has been determined between 1.5 and 15 μm. A maximum value of 57 cm-1 was measured at 1.70 μm with minimum values of 6 cm-1 at 2.75 and 8 μm. The absorption coefficient of polyerystalline UO2 at wavelengths less than 8 μm is estimated to be ten times larger than for single crystal UO2.
