Particle Accelerator Physicist

Belgian Nuclear Research Centre (SCK CEN)
Mol, Belgium
Closing date
10 Dec 2022

Job Details

Join our R&D program supporting the design, test, and operation of the MYRRHA proton accelerator!

Together with a large team of ambitious engineers and researchers, SCK CEN wants to develop new medical radioisotopes to treat cancer patients and solve the nuclear waste issue by means of the MYRRHA project. The MYRRHA project’s first phase (start of commissioning scheduled for 2026) consists of a proton accelerator with one of a kind reliability and two target facilities with which research can be performed into radioisotopes, radioactive ion beam physics and nuclear fusion reactor materials. The subsequent phases extend the accelerator to drive a sub-critical reactor intended to proof the concept of nuclear waste transmutation (start of commissioning scheduled for 2040).
For the R&D program supporting the design of the proton linear accelerator of the MYRRHA project, we are looking for someone to work on the ion source and beam physics topics.

You will build upon our in-house knowledge and support our team of physicist and engineers working on beam dynamics and machine protection of the 100 MeV proton linac for the MINERVA facility. You will interface with researchers and technicians, working on an temporary injector test stand, which is the first part of the proton linac, which is currently installed at Louvain-la-Neuve.

Your tasks include:

  • acquiring expertise on the ECR ion source of the proton linac and assume overall responsibility of it (e.g. ensure it’s upgraded to fit its final purpose; define operational procedures, …)
  • performing tests at the injector test stand and analyse experimental data; documenting test results for later detailed scientific analyses;
  • interacting with research engineers and technical support teams at SCK CEN and at other research institutes and universities
  • participate to beam optics studies and the definition of the operational concepts/routines.
  • participate in the development of the machine protection system in collaboration with beam diagnostics and safety engineers

To join this frontier, you'll need

  • experience with ion sources and accelerators, beam optics models/codes and concepts are strong assets
  • hands-on mindset, willing to maintain and build upon existing experimental facilities
  • you will be stationed in Mol, but are willing to perform regular duty trips to our temporary injector test-stand in Louvain-la-Neuve.
  • a master or doctorate degree in electrical engineering, physics or equivalent
  • good communication skills and ability to work independently
  • fluent in English, both for daily communications and for internal and external reporting
  • flexible and open to work in an international environment, in collaboration with other teams at SCK CEN, with other research institutes and universities and within European and international research programs.


Tomas Sergooris
+32 (0)14 33 83 09


Belgian Nuclear profile imageWe explore. Driven by our passion for science. Boosted by our unique infrastructure. We sound out the frontiers. We expand our knowledge in various nuclear areas. However many horizons we may explore, we always pursue the same objective: developing innovative applications for society.

Why work for us
At SCK CEN, we are on the forefront. By developing new knowledge and innovative applications, we move the line of what nuclear science can do for society. Each day, we are driven by a relentless ambition to build our expertise and achieve our goals. We are immersed in a world of unique technology, open discussion and discovery, together with other capable and curious minds.

SCK CEN works actively on the design and construction of a new multi-purpose research plant: MYRRHA (, which stands for Multi-purpose HYbrid Research Reactor for High-tech Applications. MYRRHA is a versatile research infrastructure but above all, unique. It is the world’s first research reactor driven by a particle accelerator. The special feature of this unique configuration – Accelerator Driven System (ADS) – is the “subcritical” core of the reactor. The core does not have enough fissile material to spontaneously keep the chain reaction going.

So that’s why we have to build the most reliable super conducting high-power proton linac in the world. A linac can be designed with fewer interruptions in the beam’s proton flow than a cyclotron. While the accelerator will be almost 300 m long and reach 600 MeV proton beam energy in the final configuration, the first stage is limited to 100 MeV. This project part is called MINERVA and is in full development. It will allow the demonstration of the required reliability concepts and at the same time it will be used to deliver beam to users in two experimental irradiation facilities.

The aim is to be able to beam-commission the installation in 2026 so as to start with the development of innovative medical radioisotopes and perform fundamental research in physics. In the next phase, we will aim for an energy level of 600 MeV. In the third phase, the research reactor will be built. So we have a lot of work to do.

What are we looking for
Are you searching for a challenge that contributes to solving some of society’s most important issues, such as closing the nuclear fuel cycle, transforming the lives of cancer patients or conducting fundamental physics research?

Don’t look any further and apply.

Mol, Brussels, Louvain-la-Neuve, Belgium

Number of employees

Main areas of research
Nuclear, physics

Positions recently recruited for
We have recruited to a variety of positions in the accelerator field: vacuum engineers, power converter engineers, beam diagnostics engineers

How to apply
Apply online at

Closing date
All year round

Tel +32 (0)14 33 83 09

Find Us
+32 (0)14 33 83 09
Boeretang 200

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