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.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Latest Magazine Issues
May 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
June 2026
Nuclear Technology
Fusion Science and Technology
Latest News
NRC proposes changes to its rules on nuclear materials
In response to Executive Order 14300, “Ordering the Reform of the Nuclear Regulatory Commission,” the NRC is proposing sweeping changes to its rules governing the use of nuclear materials that are widely used in industry, medicine, and research. The changes would amend NRC regulations for the licensing of nuclear byproduct material, some source material, and some special nuclear material.
As published in the May 18 Federal Register, the NRC is seeking public comment on this proposed rule and draft interim guidance until July 2.
R. P. Gardner, H. K. Choi, M. Mickael, A. M. Yacout, Y. Jin, K. Verghese
Nuclear Science and Engineering | Volume 95 | Number 4 | April 1987 | Pages 245-256
Technical Paper | doi.org/10.13182/NSE87-A20436
Articles are hosted by Taylor and Francis Online.
The equations and computer algorithms are derived and developed to determine the limiting rotational and scattering angles for spherical, planar circular, and right circular cylindrical detectors. In addition, the computer algorithms developed provide most of what is required for implementing the expected value technique in analog Monte Carlo simulation. This includes providing a specific rotational angle, a specific cosine of the scattering angle, a weight factor for forcing within the limiting cosines of the scattering angle, and the direction cosines for the specific angles chosen.