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
Aerospace Nuclear Science & Technology
Organized to promote the advancement of knowledge in the use of nuclear science and technologies in the aerospace application. Specialized nuclear-based technologies and applications are needed to advance the state-of-the-art in aerospace design, engineering and operations to explore planetary bodies in our solar system and beyond, plus enhance the safety of air travel, especially high speed air travel. Areas of interest will include but are not limited to the creation of nuclear-based power and propulsion systems, multifunctional materials to protect humans and electronic components from atmospheric, space, and nuclear power system radiation, human factor strategies for the safety and reliable operation of nuclear power and propulsion plants by non-specialized personnel and more.
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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December 2024
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November 2024
Latest News
General Atomics’ SiGA-cladded test rods complete irradiation testing in the ATR
General Atomics Electromagnetic Systems (GA-EMS) announced last week that unfueled test rods featuring the company’s SiGA fuel cladding—made of a silicon carbide composite material—successfully survived 120 days of irradiation in the Advanced Test Reactor (ATR) at Idaho National Laboratory.
Thomas E. Booth, R. Arthur Forster, Roger L. Martz
Nuclear Technology | Volume 180 | Number 3 | December 2012 | Pages 355-371
Technical Paper | Special Issue on the Initial Release of MCNP6 / Radiation Transport and Protection | doi.org/10.13182/NT12-A15349
Articles are hosted by Taylor and Francis Online.
Improvements incorporated into MCNP variance reduction methodology and code releases since 2000 are discussed. Some of the improvements are modifications or generalizations of older techniques, and some are entirely new. In particular, pulse-height-tally variance reduction is now possible in MCNP, and the dxtran technique has been generalized to allow an arbitrary nesting of dxtran spheres. A new precollision, next-event estimator is discussed along with flux-at-a-point image tallies. Additionally, the event log analyzer is a tool designed to help the user understand what causes the variance in the user's particular MCNP calculation.
