European Spallation Source Receives Installation Permit from Swedish Authority SSM

The rigorous four-part licensing process of ESS has cleared the second milestone, allowing for the installation of technical components in the Accelerator, Target and Gallery buildings to advance.
ABOVE: ESS staff presenting the SSM permit allowing installation of certain components to move forward. From left, Thomas Hansson (ES&H), Johan Waldeck (Systems Engineering), Ralf Trant (ES&H and Q), Lali Tchelidze (Accelerator), and Peter Jacobsson (ES&H). PHOTO: ESS 
LUND—On Friday, June 30, the European Spallation Source (ESS) received its second permit from the Swedish Radiation Safety Authority (Strålsäkerhetsmyndigheten, or SSM) on its application submitted in May 2016. The SSM’s licensing of the facility is a four-stage process, and this permit gives the go-ahead for installation of equipment that could generate ionising radiation.
The permit allows installation processes to move forward in the Accelerator’s Gallery Building, the Accelerator Tunnel and the Target Station. It is granted to ESS together with SSM’s prerequisites for installation, a full review report, and conditions for the continuing steps in the process. 
‘Major Achievement for Whole ESS Team’
“This is an important intermediate milestone in the licensing process, and a major achievement for the whole ESS team,” said Ralf Trant, Associate Director for the ESS divisions of Environment, Safety & Health and Quality. “The licensing team started the same day to carefully study the SSM report in order to initiate the important follow-up work to be taken up by all parts of the organisation. This will enable ESS to continue moving the installation process forward by providing a timely response to SSM with the appropriate quality assurance.”   
Under construction in Lund, Sweden, ESS is a materials research facility supported by 15 European nations and jointly hosted by Sweden and Denmark. The facility is based on the world's most powerful spallation neutron source, and will host researchers from across the spectrum of scientific and industrial fields, from materials and life science to engineering and fundamental physics. Once the research programme begins, samples will be examined on an atomic and molecular level using neutrons. 
Overview of west end of ESS construction site, June 15, 2017. Click to enlarge. PHOTO: Perry Nordeng/ESS
When producing the neutrons, ionising radiation and radioactive substances are generated in parts of the research facility. This means that ESS must follow the Swedish Radiation Protection Act in order to protect people on site, the public and the surrounding area. The Swedish authority SSM ensures that ESS adheres to their rigorous radiation safety requirements.
Permit Keeps Project Schedule on Track
“The ESS project is under a tight time schedule, and to maintain our planned completion goals it's important that the licensing process proceed smoothly,” said John Haines, ESS Project Manager. "We have a good dialogue with SSM, which is essential for a licensing process consisting of several steps like this one, where many different safety aspects must be taken into account.”
In July 2014, ESS received the first license from SSM to build the research facility in Lund. Construction began shortly thereafter and the project stands at around 35% complete. The final two stages of the licensing process will apply to test operations and full operations of the facility.