[Neutron] Senior Beamline Scientist/Engineer at ESS

Kristina Bacos Kristina.Bacos at esss.se
Wed Jul 2 17:02:28 CEST 2014

The Science Directorate at the European Spallation Source (ESS) in Lund, Sweden, invites applications for a Senior Beamline Scientist/Engineer position.

Description of group

The neutron optics and shielding group at the ESS is responsible for designing and optimizing the neutron optical systems that transport the neutrons from the moderator to the neutron spectrometer sample position.  The optics technology involved will involve neutron guides, polarizing mirrors, helium 3 analyzer cells, collimation devices, diffractive elements such as monochromators, etc.

Description of main responsibilities

The successful candidate will be an expert in optimizing neutron beams, their shielding, and the instrument backgrounds, and will work with the rest of the neutron optics group and the instrument teams to ensure that the neutron instrument performance achieves the maximum possible performance with the minimum possible background noise. This will require modeling the ESS beam systems right into the instruments, drawing input from the accelerator and target groups, and including all important physics processes between GeV down to eV energy ranges.


  *   A track record of cradle-to-grave neutron instrument modeling, from source to sample, with background evaluation and minimization.
  *   Knowledge of nuclear physics processes from eV to GeV energy ranges, and how they contribute to instrument backgrounds at spallation neutron sources.
  *   Multiple years of experience in the use of monte carlo simulations in MCNPX, GEANT4 and similar packages on neutron instrumentation.
  *   Deep knowledge of optimization of these nuclear codes for speed of execution, and the coupling of these packages with metaheuristic search strategies.
  *   Validated results from constructed, running hardware, and a good agreement between the performance of the models and of the as-built system.
  *   The ability to write high quality, reliable code in modern object-oriented languages, especially C++.
  *   Experience of working in an international environment.
  *   Excellent oral and written English skills are a prerequisite; knowledge of other European languages would be an advantage.

We truly believe that to enjoy and perform in this position, you consider these following competencies as a significant part of your character: You enjoy working on difficult, technical problems in teams, but nonetheless you are able to take ownership of a complex problem and use your initiative to find novel solutions. Good communication skills with the ability to resolve discussions when a project is under pressure. Strong analytical approach, with a focus on logic, and the ability to think outside the box, to develop new technology and ideas without simply copying existing concepts.

The position is permanent with six months initial probationary period or a temporary two-years position depending on applicant.

What ESS can offer

At ESS we offer people with talent and passion a unique opportunity to be involved in the development and building of a world leading facility for materials research. Besides attractive employment and relocation conditions, the flexibility to balance work life with private life and good opportunities to further enhance your skills; you will also enjoy being part of an organizational culture that promotes and supports internal career growth. We pride ourselves in having successful collaboration across different functions, and as the facility continues to grow we will keep nurturing the international and vibrant environment welcoming people from all across the world.

Application & Contact

You will find the application on our webpage, http://europeanspallationsource.se<http://europeanspallationsource.se/> Please provide your curriculum vitae and covering letter in English.  Please note we only accept applications via the ESS website.

The deadline for applications is 17th of August 2014. For further information regarding the position please contact Phillip Bentley, phillip.bentley[at]esss.se and for further information regarding the recruitment process, please contact HR Officer, Kristina Bacos, kristina.bacos[at]esss.se.

We look forward to receiving your application.


Kristina Bacos
HR Officer/Recruitment Partner

European Spallation Source ESS AB
P.O Box 176, SE-221 00 Lund, Sweden
Visiting address: Tunavägen 24

Mobile: +46 72 179 22 76
Phone: +46 46 888 32 76
E-mail: kristina.bacos at esss.se<mailto:linda.sima at esss.se>




The European Spallation Source is a Partnership of 17 European Nations committed to the goal of collectively building and operating the world's leading facility for research using neutrons by the second quarter of the 21st Century

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