Post doc - Neutron optics and Beam delivery systems at ESS

The Science Directorate at the European Spallation Source (ESS) in Lund, Sweden, invites applications for a "Post doc - Neutron optics and Beam delivery systems".


Description of directorate/division

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


Description of main responsibilities

The successful candidate will engage with the ESS instrument scientists and the instrument project teams in designing and optimising the neutron optical systems to deliver the maximum possible signal to noise ratio within the region of phase space that is of particular concern for the instrument. He or she will work closely with the rest of the neutron optics team, the instrument teams, and the engineering staff at the ESS, in addition to the partner laboratories working on instrument projects around Europe.



This position requires a knowledge of at least some of the following methods, if not all of them, or similar competences in a related field:


•  Neutron scattering instrumentation and experiments

•  Neutron guide systems and beams

•  Numerical optimisation strategies with ray-tracing simulations and/or analytical derivation of system performance, acceptance diagrams etc.

•  Optical effects and aberrations caused by polychromatic neutron beams interacting with mirrors, lenses, crystals, and how to optimise these to achieve maximum performance

•  Experience in numerical coding in mathematica, C/C++, Java, python or similar languages

•  Experience of working in an international environment is essential.

•  Excellent oral and written English skills are a prerequisite; knowledge of other European languages would be an advantage.


You as a person: We truly believe that to enjoy and perform at ESS, you consider these following competences as a significant part of your character:


•  You enjoy working on difficult, technical problems in teams, but nonetheless you are able to take hold of a problem and use your initiative to find novel solutions

•  Good communication skills, and the ability to resolve discussions when a project is under pressure

•  Analytical approach, with a focus on logic, and a will to push and develop new technology without simply copying existing ideas


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 a company culture that promotes and supports internal career growth. We pride ourselves in having successful collaboration across different functions, and as the company continues to grow we will keep nurturing the international and vibrant environment welcoming people from all across the world.


Duration & Location  Two years, with the possibility of conversion to open ended contract subject to performance and needs of the group. Your work place will be situated in Lund, Sweden.


Start date

The position is to be filled as soon as possible.


Application & Contact

Please provide your curriculum vitae and covering letter in English by entering It is a requirement of our application process that the names and contact details (e-mail address and phone number) of three references be provided. Please note we only accept applications via the ESS website.


The deadline for applications is 23 September 2013.


For further information regarding the position, please contact Group Leader Neutron Optics, Phil Bentley,[at] For further information regarding the recruitment process, please contact HR Officer, Charlotta Olsson, charlotta.olsson[at]


We look forward to receiving your application.




Charlotta Olsson

HR Officer


European Spallation Source ESS AB

P.O Box 176, SE-221 00 Lund, Sweden

Visiting address: Tunavägen 24, 223 63 Lund


Mobile: +46 721 79 20 25

Phone: +46 46 888 30 25

E-mail: Esta dirección electrónica esta protegida contra spambots. Es necesario activar Javascript para visualizarla


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


SETN Lista de Distribución