PhD scholarship in Neutronics

tirsdag 16 jun 20

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Frist 15. juli 2020
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DTU Physics is seeking candidates for a PhD position in neutronics, to help developing advanced neutron reflectors for the European Spallation Source (ESS), which is under construction in Lund, Sweden.

The successful candidate will join the Radiation Physics section of DTU Physics. Radiation Physics carries out research and innovation in luminescence physics and neutronics, with applications within e.g. geological and archaeological dating, dosimetry and radiation protection, neutron scattering and nuclear energy. The division presently consists of approx. 30 people including researchers, technicians and PhD students. 

The ESS neutron scattering facility will be the largest research infrastructure in Scandinavia. In 2021 ESS will commission the accelerator and the first instruments and by 2025 ESS is expected to serve 15 neutron scattering instruments and the user program will start. DTU have played an integral role in the design and construction of this facility. DTU has made significant contributions to the target system, which is designed to deliver the highest possible thermal and cold neutron flux to the neutron scattering instruments. By careful optimization, this is achieved using a single moderator/reflector design only, reserving the position below the ESS target wheel for future upgrades and/or a second neutron source.

In the HighNESS project, “Development of High Intensity Neutron Source at the European Spallation Source”, funded by the European Commission under the H2020-INFRADEV framework, the aim is to develop a second neutron source for ESS installation, providing a higher neutron intensity particular towards the cold and very cold neutron spectrum.

Job description
In the HighNESS project, the development focuses on designing a volumetric D2 moderator, supplemented by one or more smaller moderators aimed to serve specific instrument needs, and advanced reflectors, to enhance the neutron transfer in the beam extraction region, between the moderator and the neutron guide. DTU will take the lead in the development of the advanced reflectors. In this work, we will employ recent discoveries showing the potential for neutron reflection of several materials, including clathtate hydrates, nanodiamonds and MgH2. 

Several studies are needed to promote such materials from being promising candidates to be applied in engineering design for ESS; these include cross-section measurements, development of modelling tools, mock up experiment design and execution, and finally developing a design proposal for ESS. 

The PhD student will be involved in all these activities, and the successful candidate is expected to take a leading role in their execution. 

Candidates should have a two-year master's degree (120 ECTS points) in nuclear physics or nuclear engineering or a similar degree with an academic level equivalent to a two-year master's degree. Prior experience in computer modelling of radiation transport 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 scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, 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 within fundamental and applied research in radiation physics. 

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.

You can read more about
career paths at DTU here

Further information
Further information may be obtained from Senior Researcher Esben B. Klinkby,
, +45 2179 9105. 

You can read more about DTU Physics at

Please submit your online application no later than 15 July 2020 (local time)
. 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, religion or ethnic background are encouraged to apply. 

DTU Physics
At DTU Physics, we carry out cutting-edge research in modern physics, with particular focus on four main areas: quantum technology, sustainable energy, materials, and biophysics. Our focus is both to acquire greater knowledge about basic scientific problems and to conduct research oriented towards use in societies and companies.

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear vision to develop and create value using science and engineering to benefit society. That vision lives on today. DTU has 11,500 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. Our main campus is in Kgs. Lyngby north of Copenhagen and we have campuses in Roskilde and Ballerup and in Sisimiut in Greenland.