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Secrets of the Substance: What Does a Nuclear Technician Do?

February 05, 2023 · 6 min read

Nuclear technicians are professionals who work in the nuclear power industry and are responsible for a variety of tasks related to the operation and maintenance of nuclear reactors and other nuclear facilities. Some of the key duties of a nuclear technician may include:

  1. Monitoring and controlling reactor systems: Nuclear technicians are responsible for monitoring the operation of reactor systems and making adjustments as needed to maintain safe and efficient operation.
  2. Conducting maintenance and repairs: Nuclear technicians are involved in the maintenance and repair of equipment, such as pumps, valves, and control systems, to ensure that the systems are functioning properly.
  3. Performing tests and inspections: Nuclear technicians may perform tests and inspections on equipment and systems to ensure that they are functioning within established parameters and to identify any problems that need to be addressed.
  4. Collaborating with other team members: Nuclear technicians often work closely with other technicians, engineers, and managers to plan and execute maintenance activities, resolve technical problems, and improve overall plant performance.
  5. Ensuring safety and compliance: Nuclear technicians must be aware of and adhere to all safety procedures and regulations, and must take steps to minimize the risk of accidents or incidents in the workplace.

In general, nuclear technicians play a critical role in ensuring the safe and efficient operation of nuclear power plants and other nuclear facilities, and must have a strong understanding of complex technical systems and a commitment to maintaining high standards of safety and performance.


A typical day for a nuclear technician may vary depending on the specific role and work environment, but could include the following activities:

  1. Monitoring systems and equipment: Nuclear technicians may start the day by conducting a visual inspection of the equipment and monitoring reactor systems to ensure that everything is functioning within normal parameters.
  2. Conducting maintenance and repairs: If any equipment needs to be repaired or replaced, the technician may be responsible for performing the work. This could involve troubleshooting problems, ordering replacement parts, and conducting tests to verify that the repair was successful.
  3. Collaborating with other team members: Nuclear technicians often work as part of a team, so they may spend time communicating with other technicians, engineers, and managers to coordinate maintenance activities, resolve technical issues, and discuss performance metrics.
  4. Performing tests and inspections: Nuclear technicians may be responsible for conducting tests and inspections on equipment and systems to verify that they are functioning properly and to identify any issues that need to be addressed.
  5. Documentation: Nuclear technicians may also be responsible for documenting their activities, including any maintenance or repair work performed, test results, and any issues that arose during the day.
  6. Adhering to safety procedures: Throughout the day, nuclear technicians must be aware of and adhere to all safety procedures and regulations to minimize the risk of accidents or incidents.

In general, a nuclear technician's day is focused on maintaining the safe and efficient operation of nuclear reactors and other systems, and may involve a mix of technical work, collaboration, and documentation.


A nuclear technician's job environment can vary depending on the specific employer, but typically they work in a nuclear power plant or a research facility. Some may also work in nuclear waste management or nuclear fuel processing facilities.

The work environment is often highly controlled and regulated to ensure the safety of workers and the public. Nuclear technicians must follow strict procedures and protocols to minimize the risk of accidents or incidents.

In a nuclear power plant, the work environment is usually very technical and can involve working with complex equipment and systems. Technicians may also be required to wear personal protective equipment, such as radiation suits, to minimize exposure to radiation.

In a research facility, the work environment may be laboratory-based and focus more on conducting experiments and analyzing data.

Regardless of the specific work environment, nuclear technicians must be able to work well as part of a team, communicate effectively with colleagues, and be able to quickly respond to any issues that arise. They must also be comfortable working in a highly regulated and controlled environment.


Nuclear technicians can work in a variety of spheres, including

  1. Nuclear power plantsThey monitor and maintain the safe operation of nuclear reactors, power plants, and associated equipment.
  2. Research and Development: They assist in the development of new nuclear technologies and in the testing of existing technologies.
  3. Waste managementThey help with the storage, handling, and disposal of nuclear waste, and ensure that it is managed in a safe and responsible manner.
  4. Fuel processing: They work in facilities that process and store nuclear fuel, including spent fuel from reactors.
  5. Medical facilities: They assist with the use of nuclear medicine and radiology procedures, including the handling of radioactive materials used in imaging and treatment.
  6. Nuclear weapons facilitiesThey support the maintenance, security, and storage of nuclear weapons.

The specific sphere in which a nuclear technician works will depend on their background, training, and qualifications. However, regardless of the sphere, all nuclear technicians must have a strong understanding of nuclear science and safety procedures, and be able to work well as part of a team.


Nuclear technicians can have a variety of specializations, including

  1. Reactor operations: They monitor and control the nuclear reactors, ensuring they operate within safe parameters.
  2. Radiological controlThey ensure that radiation levels in the workplace are kept within acceptable limits, and implement measures to protect workers and the public from exposure to radiation.
  3. Maintenance and repair: They maintain and repair nuclear power plants, equipment, and facilities, including electrical and mechanical systems.
  4. Instrumentation and control: They install, calibrate, and maintain the instrumentation and control systems used in nuclear power plants.
  5. Radiation protection: They design and implement procedures to minimize radiation exposure to workers and the public, and provide training on radiation protection.
  6. Waste management: They assist with the safe storage, handling, and disposal of nuclear waste, and ensure that waste management programs are compliant with regulations.
  7. Fuel handlingThey assist with the handling and processing of nuclear fuel, including spent fuel from reactors.

A nuclear technician's specific specialization will depend on their background, training, and qualifications, as well as the needs of their employer.


The job of a nuclear technician can be challenging and demanding, requiring a strong understanding of technical concepts, the ability to work safely in hazardous environments, and the ability to handle complex equipment and systems.

Nuclear technicians work in highly regulated and safety-critical environments, and must follow strict procedures to ensure the safe operation of nuclear facilities. They also need to be able to quickly diagnose and resolve problems, and to effectively communicate with other members of their team and with management.

However, for those who are interested in the field and are willing to put in the time and effort to learn the skills and knowledge required, it can be a rewarding and fulfilling career. If you have a strong technical aptitude, a commitment to safety, and the ability to work well under pressure, you may find that a career as a nuclear technician is a good fit for you.

by Olena Sobolieva

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