Engineering and manufacturing

Light water reactor scientist and engineer

Summary

This occupation is found in the science and engineering sectors of the Civil Nuclear and Defence Nuclear industries.

The broad purpose of the occupation is to use depth and breadth of scientific and engineering expertise in nuclear reactor technology to support all stages of the nuclear reactor lifecycle, including commissioning, operating and decommissioning. This involves independently performing technical assessment and scrutiny of designs and modifications, defining technical specifications against statements of requirement, developing innovative engineering solutions to in-service issues and providing senior leaders with technical knowledge and evidence based advice required to make informed decisions. Light Water Reactor (LWR) Scientists and Engineers are highly skilled using their knowledge and experience to understand the fundamental chemical, physical and radiological principles of nuclear reactor operations.

In their daily work, an employee in this occupation interacts with technical and academic organisations, regulatory bodies, technical and non-technical people at all levels of the organisation. The working environment will mainly be office-based with some plant inspections and reviews; in the defence sector, an employee in this occupation may also operate the submarine reactor at sea. This is a highly technical role found in large multi-national organisations and in supply chain organisations.

An employee in this occupation will be responsible for budgets, licence requirements, health & safety, nuclear safety and security. This is a highly responsible role managing the maintenance of the LWR design intent. In particular, LWR Scientists and Engineers are responsible for the safety, reliability, operability and attributes of the LWR plant, assuring compliance with regulatory, contractual and internal company requirements. They are responsible for making recommendations to address fundamental issues and complex challenges to ensure continued safe operation, whilst also in some instances considering innovative ways to improve upon current designs to make nuclear power more effective and efficient for the future.

Typical job titles include

Knowledge, skills and behaviours (KSBs)

K1:

Regulatory framework applicable to the nuclear industry

K2:

Nuclear reactor failure modes and potential consequences

K3:

Different modes of reactor operation

K4:

Hazard identification techniques and risk evaluation techniques; the principles ALARP (as low as reasonably practicable) and BAT (best available techniques)

K5:

Principles and application of deterministic fault analysis and probabilistic risk analysis

K6:

Principles and application of radiological protection and effects of exposure on human health and the environment

K7:

Fundamental engineering mathematics and statistical methods

K8:

Reactor physics including quantitative analysis of the neutron lifecycle and consequential design of reactor systems; capabilities of models and codes

K9:

Thermal hydraulics including multiphase heat transfer, critical heat flux and prediction methods; feedback coefficients and the coupling between reactor physics and thermal hydraulics; capabilities of models and codes

K10:

Reactor Materials including properties and selection criteria of reactor materials; the mechanisms of corrosion and degradation and the effects of irradiation on materials including fuel

K11:

Chemistry including key functions of chemistry controls on a light water reactor to maintain reactivity controls to maintain the integrity of materials and minimise radioactivity in the primary circuit

K12:

Interdependencies of reactor physics, reactor materials, chemistry and thermal hydraulics on the design and operation of reactor systems

K13:

Effective leadership, management and mentoring techniques including oral and written communication strategies that incorporate a working knowledge of LWR and regulatory terminology used in this occupation, for example Nuclear and Health and Safety legislation and guidance

Technical Educational Products

Reference:
OCC0640
Status:
Potential occupational standard imagePotential occupational standard
SOC 2020 code:
0
  • SOC 2020 sub unit groups:
    S1:

    Work competently and safely in a technical nuclear environment to meet regulatory and legislative requirements

    S2:

    Select and use appropriate models, codes, both probabilistic and deterministic, and analytical techniques

    S3:

    Assess and make recommendations for modifications to system and component design throughout the reactor lifecycle, demonstrating the rigour required to contribute to nuclear safety cases

    S4:

    Evaluate plant conditions under all modes of LWR operation, for example shut down, and start up, critical steady state operations

    S5:

    Integrate design principles, hazard identification and risk evaluation techniques into maintenance, repair and modification solutions

    S6:

    Integrate radiological protection principles into technical proposals and solutions

    S7:

    Apply appropriate mathematical statistical methods to enable uncertainties to be clearly expressed and explained to a technical and non-technical audience

    S8:

    Communicate effectively and professionally with all levels within and across the organisation

    S9:

    Carry out calculations for reactor physics and thermal hydraulics

    S10:

    Carry out chemical and radio chemical analyses

    S11:

    Generate and lead teams, physical or virtual, to solve cross-cutting problems; acknowledge the accomplishments of others and the importance of individual contributions to overall performance

    Technical Educational Products

    Reference:
    OCC0640
    Status:
    Potential occupational standard imagePotential occupational standard
    SOC 2020 code:
    0
    • SOC 2020 sub unit groups:
      B1:

      Demonstrate reliability, integrity and respect for confidentiality on work related and personal matters

      B2:

      Work autonomously and interact effectively within a wide, multi-disciplinary project team

      B3:

      Understand the impact of work on others, supporting an inclusive environment

      B4:

      Manage time effectively, being able to plan and complete work to schedule

      B5:

      Supportive attitude to change and responds positively to change management processes

      B6:

      Take responsibility for personal development, demonstrating commitment to learning and self- improvement and provide and receive feedback constructively

      B7:

      A strong commitment to personal safety and understanding of the consequences as set out in the nuclear industry requirements

      B8:

      Take responsibility for behaviours and conditions in the workplace to reinforce nuclear, radiological and conventional safety over competing goals to ensure the protection of people and the environment, including challenging unsafe behaviours and practices

      B9:

      Compliance by following rules, procedures and principles to ensure work completed is fit for purpose, sufficiently detailed and is reviewed for accuracy and completeness

      B10:

      Commitment to sustainability in work design and application

      B11:

      An enthusiastic advocate for the nuclear industry with the ability to represent this industry to a variety of audiences

      B12:

      Demonstrates appropriate leadership and management styles dependent on situation, circumstances and environment

      B13:

      Demonstrates a strong commitment to nuclear safety and security, role modelling and sharing good practice

      Technical Educational Products

      Reference:
      OCC0640
      Status:
      Potential occupational standard imagePotential occupational standard
      SOC 2020 code:
      0
      • SOC 2020 sub unit groups: