On both sites, the detector is basically composed of a 3D array of thousands of so called Digital Optical Modules (DOM) able to detect the fainted Cherenkov light produced in the water by the muons resulted from the interaction of the neutrinos with the surrounding environment. Each DOM contains 31 photomultipliers (PMT) and different electronic boards encapsulated in a 40cm diameter borosilicate sphere [2].
Once completed, the detector will have a lifetime of more then 15 years. During this period biofouling could accumulate on the upper side of the DOMs and perturbate the efficiency of the PMTs.
The main objective of this internship is focussed on the development of a passive cleaning device that could be integrated into the current design of the DOMs and adapted to the deployment procedure of a KM3NeT Detection Unit [3]. In a first step, the student will get familiarised with the CAD model of a digital module and it is expected the definition of a technical requirements specifications document. Secondly, he/she could propose different designs that will be discussed and analysed together with the APC mechanical engineers. The most suitable design will be manufactured in the workshop of the laboratory and will be integrated on a DOM already available. Further functional and acceptance tests could also be envisaged.
Useful skills and tools:
- Basic mechanical engineering knowledge
- Creativity and mechanical design skills
- Mechanical Drawings and manufacturing process
- 3D Experience, CATIA V5
- Marine environment engineering
- Understand English documentation