Eija Tuominen, coordinatorHIP/UH Detector Laboratory, October 2010 DETECTOR DEVELOPMENT at HELSINKI DETECTOR LABORATORY Detector Laboratory is a joint effort by Helsinki Institute of Physics (HIP) & University of Helsinki / Department of Physics

Eija TuominenHIP/UH Detector Laboratory October 2010 OUR MISSION OUR INFRASTRUCTURE OUR PEOPLE OUR RESOURCES OUR ACTIVITIES OUTLINE

Eija TuominenHIP/UH Detector Laboratory October 2010 MISSION  Helsinki Detector Laboratory supports the Finnish research on experimental high energy physics  The Laboratory offers infrastructure and technical support for HIP and UH scientists working in several detector development projects  The only University Laboratory in Finland dedicated to serve detector development – with all due respect to our collaboration with Jyväskylä and Helsinki Accelerator Laboratories, Helsinki Electrical Research Unit, Lappeenranta Physics Laboratory and Aalto University/Nanofab  Currently the Laboratory hosts projects related to CMS and TOTEM experiments at CERN LHC, and Super-FRS experiment at FAIR

Eija TuominenHIP Detector Laboratory, October 2010 INFRASTRUCTURE The Laboratory consist of two laboratories (122 m 2 + share of 86 m 2 ) and three clean rooms (class 1000: 105 m 2 + class 100: 20 m 2 ) The Laboratory possesses equipment for R&D, assembly, testing and quality control of microstructures, e.g.: Environmental test chamber, ESPEC ENX Probe Station, Maehlung Profilometer, KLA Tencor P15 Automatic wire-bonder, Delvotec 6400 All the major equipment have been purchased by projects working in the laboratory, or special Finnish Academy infrastructure calls

Eija TuominenHIP/UH Detector Laboratory October 2010 PEOPLE  Coordinator: Ms. Dr. Eija Tuominen  Director: Prof. Heimo Saarikko  The laboratory personnel consist of one technician and 1/5 coordinator  The people working daily in the Laboratory are one lady and 13 gentlemen  Te personnel has extensive know-how in R&D, testing and assembly of silicon and gas detectors

Eija TuominenHIP/UH Detector Laboratory October 2010 RESOURCES  The laboratory personnel consist of one technician and 1/5 coordinator, while other personnel work within the projects.  The expenditure is financed by annual budget of about ,000 euros.  The annual amount for maintaining and updating the laboratory infrastructure is ~20,000 euros.

ACTIVITIES Assembly and testing of GEM (Gas Electron Multiplier) detectors for CERN TOTEM experiment Finnish Cosmic Muon CRack (FinnCRack) for CERN CMS Tracker software development and silicon detector R&D Transient Current Technique (TCT) setup for CERN CMS silicon detector R&D Education of physics students GEM detector development for FAIR super-FRS diagnostics

Eija TuominenHIP Detector Laboratory October 2010 TOTEM activity: Assembly of GEM detectors  A total of GEM (Gas Electron Multiplier) modules are assembled at the Laboratory for the TOTEM T2 telescope.  The multistep process involves e.g. capacitance measurements of the readout board electronics, optical scanning of GEM foil defects and leakage current measurements of the foils prior to final assembly.  The assembly requires also multiple manual steps from preparation of frames to stretching and gluing foils onto the frames, leading eventually to final acceptance tests.

Eija TuominenHIP Detector Laboratory October FAIR activity: TPC-GEM -detectors  Helsinki group is responsible of (Time Projection Chamber) -detectors with GEM (Gas Electron Multiplier) –readout for the diagnostics of the heavy ion beam in Superconducting Fragment Separator (Super-FRS) in FAIR NuSTAR experiment  The FAIR research group in the Laboratory is involved in the modelling, design, prototyping, construction, testing and commissioning of 32 + spares TPC-GEMs  So far, the first prototype is ready and succesfully tested with heavy ions at GSI FRS beam line together with Comenius University Bratislava (responsible for TPC)  Optical scanning system for the quality control of GEM foils installed and commissioned at Detector Laboratory Clean Room  The optical scanning system is also an important contribution to our participation in CERN RD51 collaboration for the Development of Micro-Pattern Gas Detectors Technologies  GEM stackGEM-TPC in vacuumOptical scannerScanned GEM holes

Eija Tuominen 10 CMS activity: Development of Silicon Detectors  Silicon detectors are widely used in high energy physics experiments due to their excellent spatial resolution and well established manufacturing technology  Motivation for our R&D: Radiation environment after the Upgrade of LHC is far beyond the operational limit of existing silicon detectors  We have an own silicon detector manufacturing process at Aalto University Nanofab.  The detectors are characterized at Detector Laboratory, irradiated at Helsinki and Jyväskylä Universities, tested at CERN at by Helsinki Silicon Beam Telescope (SiBT).  We also have an access to large international infrastructure within CERN RD50 and CERN 39 collaborations.

Eija TuominenHIP Detector Laboratory October CMS activity: FinnCRack & TCT  FinnCRack, Finnish Cosmic Muon Rack, is a reference telescope based on CMS Tracker Outer Barrel silicon strip detectors measuring tracks of incoming cosmic particles  FinnCRack is a test station providing real data for the testing of the CMS Tracker functionality and for the detector R&D needed for LHC upgrade.  TCT, Trancient Current Technique, is an excellent tool to measure Charge Collection Efficiency (CCE) from silicon detectors  Thus, TCT is an essential tool in the development of radiation hard silicon detectors  Helsinki TCT system includes red laser (670 nm), pulse generator, 3 GHz oscilloscope

SUMMARY  Helsinki Detector Laboratory is a facility dedicated to serve Finnish detector development for high energy physics experiments  All the Finnish research projects working with HEP instrumentation are present in Detector Laboratory (e.g.CMS, TOTEM, FAIR Super-FRS)  The Laboratory possesses premises and infrastructure for the design, manufacturing, characterization and quality control of gas and silicon detectors  The current resources consists of 1 technician (being hired), 1/5 coordinator, and 20,000 euros annual budget for the maintenance and development of infrastructure