ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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
Ariz. governor vetoes “fast track” bill for nuclear
Gov. Katie Hobbs put the brakes on legislation that would have eliminated some of Arizona’s regulations and oversight of small modular reactors, technology that is largely under consideration by data centers and heavy industrial power users.
H. D. Warren
Nuclear Science and Engineering | Volume 48 | Number 3 | July 1972 | Pages 331-342
Technical Paper | doi.org/10.13182/NSE72-A22491
Articles are hosted by Taylor and Francis Online.
A calculational model is presented for the self-powered neutron detector of the type used in nuclear reactor cores. The model accounts for the neutron capture rate for beta-decaying nuclei, the electron escape probability from the emitter of the detector, and the effect of the insulator on the sensitivity of the device. Calculated unit sensitivities to thermal neutrons are presented as functions of emitter diameters and insulator thicknesses for rhodium and vanadium emitters having cylindrical geometries. The calculated values are compared with experimental values.
