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The Norwegian ATLAS The Norwegian ATLAS projectproject

Project summary Use of resources Some present activities Conclusions

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Project overviewProject 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

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Responsibilities in ATLAS Responsibilities in ATLAS SCTSCT

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.

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The innermost barrel as it is The innermost barrel as it is being inserted into the being inserted into the

assemblyassembly

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Common fund contributionCommon 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

Tanksof similar size

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Use of resourcesUse 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)

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NFR-ATLAS Project NFR-ATLAS Project Personnel OverviewPersonnel 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

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University personnelUniversity 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)

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Some ‘small scale’ Some ‘small scale’ Activites 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)

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ConclusionsConclusions

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!)