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.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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!
Latest Magazine Issues
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
Fusion Science and Technology
July 2025
Latest News
The U.S. Million Person Study of Low-Dose-Rate Health Effects
There is a critical knowledge gap regarding the health consequences of exposure to radiation received gradually over time. While there is a plethora of studies on the risks of adverse outcomes from both acute and high-dose exposures, including the landmark study of atomic bomb survivors, these are not characteristic of the chronic exposure to low-dose radiation encountered in occupational and public settings. In addition, smaller cohorts have limited numbers leading to reduced statistical power.
Hanna Koskinen, Jari Laarni, Marja Liinasuo (VTT Technical Research Centre of Finland), Leena Salo (Fortum Power and Heat Oy)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 488-498
We present an application of Systems Usability Case (SUC) as an overall human factors validation approach in a nuclear power plant control room modernization project. SUC enables a requirement-based human factors evaluation of complex technical systems that may cover the entire verification and validation process. The SUC is based on the Safety Case approach and on the Systems Usability construct. One of the main aims of establishing a Safety Case is to bring to the front the arguments and evidence for safety in such a way that the reasoning supports the work of a regulator or licensing organization. In the end, the SUC enables evaluating the Systems Usability of a system and making a reasonable solid argument about the acceptance of the system for use. The question is how the conclusions are reached through a reasoning process, in which the arguments are made about the evidence to approve or reject the claim concerning the quality of the system. The paper presents an application of the SUC to real data from an integrated system validation of the modernized main control room of Loviisa nuclear power plant. The results of the validation are discussed from the point of view of how the SUC approach enabled forming a statement about the acceptance of the control room. Moreover, some examples are given to demonstrate the learnings (e.g., strengths and weaknesses) as well as the development needs of the SUC approach.