1. Completion and Pre-Exploitation Costs for the Initial ATLAS Detector
ATLAS RRB-T
22nd October 2001
Completion and Pre-Exploitation Costs for the Initial ATLAS Detector
Overview of the construction completion costs for the initial detector
Overview of the M&O and C&I costs 2002 – 2005

2. Introduction
During the fall 2000 and in summer 2001 the Collaboration has carried out rather extensive
internal work and reviews to bring up-to-date the completion costs and the pre-exploitation
costs for the initial detector
The preliminary evaluations were presented at the last RRB
The updated and refined results have then been submitted and discussed in considerable
detail with
- LHCC CORE committee for the completion costs
- LHCC MAG committee for the status of the magnet design and cost
- RRB Scrutiny Committee for the pre-operation costs
This presentation will summarize the situation in a global way covering the years 2002 to 2005,
the planning for 2002 will be covered under budget issues later in the agenda by M Nordberg
The ATLAS Collaboration acknowledges strongly the very major efforts made by the Funding
Agencies and the Institutions to cover the MoU deliverables (costs and manpower)
Computing costs for ATLAS and the common CERN LHC Computing Grid Project are under
separate evaluation and not included in this presentation
22 October 2001, P Jenni
ATLAS RRB Meeting

3. The main reasons for changes can be characterized as
The revised cost estimates result from several changes that have occurred since the original
cost planning of 475 MCHF (1995 prices, not including M&O costs, no explicit contingencies)
The main reasons for changes can be characterized as
Technical developments
- Many detailed changes have taken place since the original detector design responding to
R&D results and real engineering designs;
- Cost increases of component manufacturing in industry;
Complexity of required (pre-)assembly tooling;
- Complexity of laboratory, test beam, and system test installations
These points have resulted in additional CORE and non-CORE costs
Technical services charged to the Collaboration
A number of crucial technical services provided by CERN are now being charged to the
Collaboration (for example cryogenics operation, magnet controls, partially crane operations
and transports)
Availability of technical manpower at CERN during the commissioning and integration phase
Due to the global decrease of manpower at CERN a series of tasks need to be outsourced to
external service providers (in spite of acknowledged great efforts the external Institutions
cannot fill the identified manpower gap fully)
These two points contribute mainly to the M&O and C&I pre-exploitation costs
22 October 2001, P Jenni
ATLAS RRB Meeting

4. Summary Profile of the Construction and Completion as well as the Pre-Exploitation Costs
22 October 2001, P Jenni
ATLAS RRB Meeting

5. Construction Completion Costs
The revised construction completion costs for the initial detector configuration can be summarized
as follows (after discussion with the LHCC CORE and MAG committees) in 2001 MCHF:
Net over costs in Common Projects
Magnet system 19.6
Infrastructure and shielding 7.8
LAr cryostats and cryogenics 2.3
Additional CORE items
Non-covered CORE MoU funding
Additional non-CORE items
Total
A detailed break-down is given in the following tables
The total has increased with respect to the preliminary estimate given at the April RRB by
9.2 MCHF, dominated by net increases of 7.7 MCHF in the Common Projects, of which 4.1
are in the magnet system, 2.3 in the infrastructure, and 1.3 in LAr C+C
Profile of construction completion costs
2002
2003
2004
2005
Total
9.6
21.2
15.4
5.8
52.0
22 October 2001, P Jenni
ATLAS RRB Meeting

6. 22 October 2001, P Jenni
ATLAS RRB Meeting

7. 22 October 2001, P Jenni
ATLAS RRB Meeting

8. year in order not to delay the construction, are the following ones
The most critical items, for which authorization is requested to go ahead during the coming half
year in order not to delay the construction, are the following ones
Common Project contracts with cost over runs
BT warm structure
BT coil casing (contract signed against staged processors)
BT integration
BT cryo-ring
ECT engineering and inspection
Common magnet cryogenics installations
LAr C+C integration
System-specific items
ID tooling and test stations
LAr integration tooling
Tile Calorimeter pre-assembly tooling and supports
Muon movable support structures (wheels)
22 October 2001, P Jenni
ATLAS RRB Meeting

9. Commonly shared items 40.5 MCHF System-specific items 11.5 MCHF
The supplementary construction costs can be divided into system-specific and commonly
shared items
Commonly shared items MCHF
System-specific items MCHF
It is proposed by the ATLAS Collaboration that the common items (net overcosts on the
Common Projects, the additional non-CORE items under the responsibility of Technical
Coordination, and the non-covered Common Fund) be shared amongst all Collaboration
Funding Agencies based on the CORE contributions
An extended membership fee is proposed for the years 2004 – 2006 as minimum contribution
The system specific supplementary costs are proposed to be shared within the detector
(sub-)system based on CORE investments, decided by the respective Institute Boards and
reported to the RRB
As a guideline ATLAS RRB-D contains a first estimate of such a sharing
22 October 2001, P Jenni
ATLAS RRB Meeting

10. Pre-Exploitation Costs
As a result of the work with the RRB Scrutiny Group pre-exploitation costs have been separated
into Maintenance and Operation (M&O) and Commissioning and Integration (C&I) costs
For both cases ATLAS has made detailed evaluations of the category ‘A’ items to be shared
in common as well as of the important category ‘B’ items that are system-specific, and to be
shared within the (sub-)systems
The nature of M&O costs and the mechanism for sharing costs is described in the draft MoU
for M&O (RRB-BINGO-D )
Before 2006 a large fraction of the costs are associated with test beam activities, cryogenics
operation and magnet control, general services in the experimental area, including power, on-
line support (LAN, PCs, system operators)
The C&I part concerns supporting activities outside the underground area, namely large-scale
integration and pre-assembly activities at CERN, clean rooms, active and passive storage areas,
transport and crane operations, as well as operation of common (sub-)system specific laboratory
facilities at CERN, electronics pool
The following table shows the overall total estimates, including category ‘C’ for M&O and before
applying any rebates
22 October 2001, P Jenni
ATLAS RRB Meeting

11. Pre-exploitation (M&O) 3.4 4.4 5.8 11.3 24.9
Nature of cost
2002
2003
2004
2005
Total
Pre-exploitation (M&O)
3.4
4.4
5.8
11.3
24.9
Pre-exploitation (C&I)
3.1
5.5
7.5
4.9
21.1
TOTAL (M&O and C&I)
6.5
9.9
13.3
16.2
46.0
22 October 2001, P Jenni
ATLAS RRB Meeting

12. Separation of M&O and C&I into categories ‘A’ and ‘B’
22 October 2001, P Jenni
ATLAS RRB Meeting

13. The following items drive the costs
M&O ‘A’ General services (electricity, cooling and ventilation, transports, cranes, survey)
TDAQ system management
Magnet test operation in Hall 180
M&O ‘B’ Test beam operation
LAr cryogenics operation
Electronics for test beams and Labs
C&I ‘A’ Magnet cryogenics and controls operation in pit-1
General technical integration support (Technical Coordination)
C&I ‘B’ Detector specific integration and manpower
Assembly areas and test areas
For the period 2002 to 2005 the ATLAS Collaboration proposes to share the M&O category ‘A’
costs according to the ‘qualified authors’ as defined in the draft M&O MoU, and the other costs
according to CORE investment
Based on this assumption the document ATLAS RRB-D contains as a guideline the
sharing per Funding Agency
22 October 2001, P Jenni
ATLAS RRB Meeting

14. Summary
The ATLAS supplementary construction costs for completing the initial detector and the pre-
exploitation costs for the period 2002 to 2005 have been evaluated as
Construction MCHF
C&I (all categories) MCHF
M&O (all categories) MCHF
ATLAS will scrutinize further these costs with the aim to find reductions
The ATLAS Collaboration acknowledges all the great efforts made by the Funding Agencies
and Institutions on the in-kind deliverables
The ATLAS management is also grateful for many clarifying initial discussions with Funding
Agencies that took place over the past months
In order to keep the project on schedule the ATLAS management kindly requests Funding
Agencies to contribute towards the identified funding shortfall
Significant parts of M&O and C&I are manpower, and we will try to cover (and credit) part of
this with Collaboration manpower
The budgeting for 2002 will be presented later, and the Collaboration has started to explore
restrictive priorities for 2002 in order to keep the project on track
It is hoped that with some internal flexibility within ATLAS and with the help of the flexibility
of Funding Agencies the most urgent and time-critical needs can be covered in the near future
22 October 2001, P Jenni
ATLAS RRB Meeting