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The Norwegian ATLAS project

The Norwegian ATLAS project. Project summary Use of resources Some present activities Conclusions. Project overview. Contribute inside the ATLAS SCT project Silicon detector development Detector module production

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The Norwegian ATLAS project

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  1. The Norwegian ATLAS project • Project summary • Use of resources • Some present activities • Conclusions

  2. Project overview • Contribute inside the ATLAS SCT project • Silicon detector development • Detector module production • Cooling of the detector system • Contributions to the ATLAS common fund • Cryotanks as In kind contribution • Cash

  3. Responsibilities in ATLAS SCT • Development, purchase and testing of 1950 silicon detectors for the ATLAS SCT. • Done • Construction of more than 400 modules for the ATLAS SCT, corresponding to all modules on the innermost barrel cylinder (+spares). This is a collaboration between the particle physics groups in Bergen, Oslo and Uppsala. • Done ( to optimize resources across the SCT community within the timeframe available, the number of module starts was 318 + quaification modules.) • Cooling of the ATLAS ID (an evaporative cooling system), with 37% of the financial commitment. • Financial overruns are still a small headache • Financial involvement in front end electronics and components, module baseboards, data transmission links, barrel support structure.

  4. The innermost barrel as it is being inserted into the assembly

  5. Common fund contribution • Company ‘SB verksted’, got contract for delivery of four large cryogenic tanks. (Two for liquid nitrogen, two for liquid argon). • Cryo-technology developed in collaboration with NTNU (the Norwegian Technical University). Core value was 1.15 MCHF. Actual payments were 1.44 MCHF for the tanks + 0.14 MCHF for engineering and travel . Our planning allowed for a total of about 1.5 MCHF including engineering, followup and some travel. • Status: • Delivery, commissioning and installation completed • Rest of common fund contribution in cash Tanks of similar size

  6. Use of resources • Total budget over the 8 years was 41.7 MNOK + adjustments to compensate for increases in personnel costs. • Silicon detectors 8.8 MNOK • Other SCT related 4.4 MNOK • Atlas Common fund 9.8 MNOK • Post. Doc + Engineers 6.2 MNOK • PhD stipends 3.8 MNOK • T ravel & Operation 8.8 MNOK • Harder to measure the university contribution (personnel, workshops, offices, lab space)

  7. NFR-ATLAS Project Personnel Overview • The project plan was to finance one post. doc. and one engineer over most of the period, and distribute three doctoral stipends (+ complete one ongoing stipend). • For budgetary reasons, there was no post. doc since the end of 1999. • Post. Doc: O. Røhne  1999. • Engineer: A. Marshal  year 2000, replaced by T. Huse  beg. 2005, who also completed a PhD (2005). • Instead, the project has funded a fourth doctoral student since mid. 2003. • B.M. Sundal, Graduated 1999 • L. G. Johansen, graduated 2005 • E. Dvergsnes (theory), graduated 2004 • H. Sandaker, graduated 2005. • O. Øye, stipend from mid 2003 • Personnel was also paid to do the quality assurance of silicon detectors. • Stephen Molloy • Celia Berg • Inger Kindervåg • Doctoral students on separate NFR grants: • Are Strandlie (graduated 2000) • Bjarte Mohn, from mid 2003

  8. University personnel • Academic staff of the two particle physics groups (main ‘players’ are Stapnes (UiO) and Stugu (UiB)) • Engineers and technicians: • O. Dorholt (Senior el. engineer UiO) • A. Solberg (Senior el. engineer UiB) • K.M. Hovland (Technician, UiB) • P. Nordahl (Mech. Engineer, UiO) • B. Pommeresche (el. Engineer UiB) • 9 Cand. Scient. Degrees awarded, with clear attachment to the construction project. (+ a number of students from pre 1998 era) • NTNU was involved with R&D work for the cryotanks (G. Owren)

  9. Some ‘small scale’ Activites • Electronics layout design and production work for the Inner detector cooling system. (Dorholt) • Mechanics for the ID (Nordahl) • Software work on the SCT control system (Sandaker, Mohn) • Installation work, mainly connected with cabling, tests, routing (Solberg, Solheim, Slettebakken, Pommereche, Stugu) • Cosmic tests of the ID assembly before installation (Øye)

  10. Conclusions • The Norwegian ATLAS 1998-2005 project is completed. Deliveries have been done more or less as anticipated in 1998, (almost) within the budget envelope granted. • Finances are still a problem, but much smaller than expected a few years ago (Savings+some extra NFR contribution). • Inner detector Cooling project more expensive than anticipated, Still lack of about 750 kNOK • Current involvements in electronics development for the cooling system, and in the installation work will also require that some late bills this year must be paid off next years’ butget (No deficit yet!)

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