To provide the opportunity to exchange knowledge and to provide training in the necessary skills for working underground and for the safe disposal of radioactive waste in general, Nagra established the Grimsel Training Centre (GTC) in 2017, as a permanent platform.

Facing the long-lasting programmes of the radioactive waste management, training the next generation of radioactive waste management scientists was identified by many organisations as one major challenge for the next few years and decades.

Grimsel Training Centre
Grimsel Training Centre
Grimsel Training Centre

To meet the various needs of training and knowledge transfer, the GTC team developed a programme which allows both tailor-made and established courses repeated every two or three years. Also, the combination of more theoretical lectures and hands-on training renders this programme very attractive for various levels of experience and expertise. High quality and relevance of the courses is achieved by involving lecturers from the GTS partner organisations.

Upcoming courses :

GTS Tunnels

From RD&D requirements to in-situ Experiments – How to design and setup URL experiments

3 days: 30th August - 1st September 2022 @ GTS

This course will teach participants how to manage and design URL experiments ranging from relatively small experiments with one or two boreholes up to large scale experiments testing and demonstrating the performance of EBS component(s). The use of radioactive tracers in URL experiments (input for safety cases) will also be covered in the course, as well as lessons learned from designing and running URL experiments at Swiss URLs.

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Site Selection 2022

Site Selection of Deep Geological Repositories

Module 1: Processes and Methodologies
Module 2: Geological and Geophysical Data Collection

4 days : 6th - 9th September 2022 @ Nagra, Wettingen

This course is divided into two modules. Although both modules are linked it is possible for participants to attend one module only.

Module 1: This module will familiarize participants with the main approaches used for selecting sites for radioactive waste repositories. It will include an overview of Nagra’s own experience and recent staged approach starting from a ‘white’ map. Site selection programmes developed in other countries from around the world will also be evaluated and compared from both technical and social-political points of views. Participants will also learn about important lessons learned and key aspects to be considered when designing a site-selection programme.

Module 2: This module will teach about data collection techniques mainly from surface based geophysics and borehole investigations.

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Training Data management 2022

Data Management - Making Geoscientific Data FAIR*

3 days: 12th - 14th September 2022 @ Nagra, Wettingen

Data and data management tools are both expanding rapidly. The radioactive waste business is no exception. It is very important for scientists, engineers, and managers alike working in the radioactive waste management business to know how to handle large amounts of geological and geophysical data.

This course will teach participants the basics of data management systems, the different data types used in radioactive waste management and the concept of metadata (including searchability, accessibility, localizability). Participants will also gain familiarity by performing exercises using Nagra’s data management tools.

*FAIR: Findable, Accessible, Interoperable and Reusable

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Grimsel Test Site (GTS)

The Grimsel Test Site (GTS) located in the Swiss Alps was established in 1984 as a centre for underground Research and Development (R&D) supporting a wide range of research projects on the geological disposal of radioactive waste. International partners from Europe, Asia and North America are working together at this unique facility.

The (GTS) is located at an altitude of 1730 metres in the granitic rock of the Aar Massif in Switzerland. It lies at a depth of around 450 metres beneath the surface and is reached by an access tunnel belonging to the local hydro-power company (Kraftwerke Oberhasli AG, KWO). The GTS tunnel system is around one kilometre long and was excavated in 1983 using a full-face tunnelling machine (diameter 3.5m).