Selection and Training of Personnel for Research Reactors


ANSI/ANS-15.4-2016 Research Reactor


As we have discussed in the past, nuclear power is greatly misunderstood, and nuclear reactors often are portrayed as radioactive time bombs, despite the fact that they are safely maintained by current standards and regulations. Through these guidelines and requirements, the world’s 444 nuclear reactors generate about 10 percent of the electricity used on the planet. Furthermore, nuclear reactors serve other practical purposes that benefit society, such as research.

Research reactors make use of technology similar to electricity-generating nuclear reactors, but exist for research and training, materials testing, and even the production of radioisotopes for use in medicine and other industries. These “neutron factories” are much smaller than common power reactors or those used to propel ships, and they are located primarily on university campuses. There are about 245 research reactors operating worldwide.

Even though they are much smaller than power nuclear reactors, research reactors still make use of the nuclear fission of uranium and other enriched fuels, and thus need to be managed by similar regulatory and standardized measures. With nuclear energy, many past mistakes have resulted from inadequate preparedness of the workers in contact with the nuclear reactors. To prevent anything like this from occurring with research reactors, ANSI/ANS-15.4-2016 - Selection and Training of Personnel for Research Reactors standardizes the criteria for the selection and training of their personnel.


ANSI/ANS-15.4-2016 Research Reactor


According to ANSI/ANS-15.4-2016, “Research reactor personnel shall have that combination of academic training, job-related experience, health, and skills commensurate with their level of responsibility that provides reasonable assurance that decisions and actions during all normal and abnormal conditions will be such that the reactor is operated in a safe manner.”

This training should differ between the functional levels of the personnel and their responsibilities. ANSI/ANS-15.4-2016 establishes the general functional levels of an organization in the following figure:


ANSI/ANS-15.4-2016 Research Reactor


The prerequisite education and experience for workers interacting with the research reactors varies among these levels, and is highest among Level 2 (6 years of nuclear experience) and Level 3 (3 years of experience). Please note that academic experience can count towards nuclear experience in some of the levels. For example, an undergraduate degree in an appropriate field can be substituted for 4 of the 6 years of experience in Level 2, and 2 academic years can count for the 3 years needed for Level 3.

Even with this experience, ANSI/ANS-15.4-2016 still calls for worker training procedures, with the appropriate course material based off the trainees’ current knowledge. The document details procedures for this, the assessments for disqualifying conditions, and the guidelines for refresher training when it is needed.

In addition, the new edition of the standard places a strong focus on the the necessary frequency of medical examinations for the operators to further assure their safety. Managing this is the responsibility of Level 2 personnel.

If research reactors are operated by workers that do not hold these competencies, then they can put themselves, the other operators, and even people in the communities surrounding the reactor at risk from uranium exposure and the other threats of decaying nuclear fuel. However, through adherence to ANSI/ANS-15.4-2016, these threats are reduced drastically, and the operators can assure safety and reliability as they educate, experiment, and extract isotopes to treat illness and disease, even providing a viable treatment for cancer.

ANSI/ANS-15.4-2016 - Selection and Training of Personnel for Research Reactors is now available on the ANSI Webstore.


1. American Nuclear Society, ANSI/ANS-15.4-2016 - Selection and Training of Personnel for Research Reactors (La Grange Park: ANS, 2016), 3.
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