PhD scholarship in reactor physics

DTU Nutech
onsdag 14 jun 17

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Frist 6. august 2017
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DTU Nutech, the Radiation Physics Division, is seeking candidates for a PhD position to develop methods for neutronics and thermodynamic simulations of multi-fluid nuclear reactors.

The Radiation Physics Division carries out research, innovation and research-based consultancy in the fields of dosimetry, luminescence physics, and neutronics, with applications within e.g. geological and archaeological dating, radiation therapy, radiation processing, radiation protection and nuclear emergency preparedness. The division presently consists of approx. 35 people including researchers, technicians and PhD students.

Innovative nuclear fission reactors such as the Molten Salt Reactor having two or more fluids within the reactor core exhibit steady-state and dynamic behaviour that differs distinctly from single fluid nuclear reactors. In particular, multi-fluid systems may introduce strong couplings between neutronics and thermal-hydraulics effects, e.g. increased sensitivity to turbulent convection and mixing in the fluids. Detailed modelling of these mechanisms is a prerequisite for understanding the complex behaviour of multi-fluid reactors and essential for further development of new reactor concepts.

Job description
The aim of this PhD project is to formulate a simple benchmark model that captures the inherent complexity of a multi-fluid nuclear reactor core. The benchmark model should be applied in investigating different approaches towards neutronics and thermal-hydraulics modelling of  coupled fluid systems, and refined methods for multi-physics simulations of  coupled fluid systems should be developed.

The successful candidate is expected to have a master’s or equivalent degree in nuclear physics or nuclear engineering. Prior experience in computer modelling of radiation transport or heat flow would be an advantage.

The assessment of the applicants will be made by Head of Division Bent Lauritzen and Senior Researcher Esben B. Klinkby.

Approval and Enrolment
The scholarships for the PhD degree are subject to academic approval, and the candidates will be enrolled in one of the general degree programmes of DTU. For information about the general requirements for enrolment and the general planning of the scholarship studies, please see the DTU PhD Guide.

We offer
We offer an exciting and challenging job in an international academic environment with excellent possibilities for professional and personal development. The successful candidate will work in an environment with activities and expertise in radiation physics, dosimetry, radioecology and medical applications of radionuclides.
We strive for academic excellence, collegial respect and freedom tempered by responsibility. The Technical University of Denmark (DTU) is a leading technical university in northern Europe and benchmarks with the best universities in the world.

Salary and terms of employment
The appointment will be based on the collective agreement with the Confederation of Professional Associations. The allowance will be agreed with the relevant union. The period of employment is 3 years. The place of work is DTU Nutech at Risø Campus in Roskilde.

Further information
Further information may be obtained from Senior Researcher Esben B. Klinkby,, +45 21799105.

We must receive your online application by 6 August 2017.

Applications must be submitted as one pdf file containing all materials to be given consideration. To apply, please open the link "Apply online", fill in the online application form, and attach all your materials in English in one pdf file. The file must include:

  • A letter motivating the application (cover letter)
  • Curriculum vitae
  • Grade transcripts and BSc/MSc diploma
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and excel spreadsheet here)

Candidates may apply prior to obtaining their master's degree, but cannot begin before having received it.

Applications and enclosures received after the deadline will not be considered.

All interested candidates irrespective of age, gender, race, disability or ethnic background are encouraged to apply.

DTU is a technical university providing internationally leading research, education, innovation and scientific advice. Our staff of 5,800 advance science and technology to create innovative solutions that meet the demands of society; and our 10,300 students are being educated to address the technological challenges of the future. DTU is an independent academic university collaborating globally with business, industry, government, and public agencies.