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
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
K. Wong, B. Erdelyi
Nuclear Technology | Volume 175 | Number 1 | July 2011 | Pages 40-47
Technical Paper | Special Issue on the 16th Biennial Topical Meeting of the Radiation Protection and Shielding Division / Radiation Transport and Protection | doi.org/10.13182/NT11-A12267
Articles are hosted by Taylor and Francis Online.
Proton computed tomography (pCT) has become a lively research field in medical imaging. Its importance lies in its ability to accurately locate the Bragg peak where the tumor is positioned for proton therapy treatment planning. The quality of the pCT image is primarily affected by the spatial resolution and relative electron density resolution. A measure of the spatial resolution is the amount of expected deviation of the actual proton paths from the theoretically derived paths based on the experimentally available data, the so-called most likely paths (MLPs). The MLPs are derived using the assumption that the object to be imaged is homogeneous water. Geant4 Monte Carlo simulations were used to simulate the actual proton paths through some inhomogeneous phantoms and were compared with MLP calculations. Statistical analyses were conducted to determine the spatial resolution of the protons in different phantoms as a function of inhomogeneity location, amount, and density.