History
Over two decades the Detector Laboratory has provided premises,
equipment and expertise for physics-driven research projects starting from the DELPHI experiment at CERN
during 80's. The interests have varied from fundamental particle-physics experiments to
space applications. Along with the projects the pioneering personnel in the laboratory has gathered strong know-how in
microstructure and detector R&D, testing and assembly.
Large fraction of activity in the Detector Laboratory is based on Finnish participation in the design, construction
and physics analysis of the LEP-DELPHI
experiment since the beginning of 1984. The group started to participate in LEP-L3 based detector R&D and
physics analysis at 1993. The read-out electronics of the DELPHI Hadron Calorimeter, the read-out
electrodes, the data acquisition system, the high voltage system, the current monitoring system and the
injection moulded precision components of the Limited Streamer Mode detectors were all designed and
constructed in Finland by the LEP Group.
Pixel detectors for digital X-ray imaging have been developed at the detector
laboratory in collaboration with VTT, Simage Oy and the Hammersmith Hospital in London, UK. Both Si
and CdZnTe pixel detectors and integrated pixel readout circuits with more than 41000 35 mm2 pixels
have been designed and manufactured. Digital X-ray images with excellent spatial resolution have been
successfully acquired. The pixel detector development is motivated not only by the strong interest of
the medical field in high resolution direct digital X-ray imaging but also by the need for pixel detector
technology in future high energy physics colliders.
Lately, Detector Laboratory has supported several large physics driven projects, for example Detector Development,
assembly of Silicon Strip Detector (SSD) modules for the CERN CMS ALICE experiment and the construction of mechanical
support structures for the CERN CMS Tracker.
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