Report From the Working Group on Common Projects
in the Field of Software/Computing and Trigger/DAQ at LHC

Detector Control Systems

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1. Introduction

The working group (composition given in Table 1) on identifying common projects within the 4 LHC experiments has met several times to discuss the subject of Detector Control Systems. The aim was to explore ways of providing a common DCS for all 4 experiments in a resource effective manner. These discussions resulted in the following conclusion. A project team should be formed that includes appropriate people from the experiments and the CO Group. Their task is to define, select, develop and support the framework and components of the control system to be used.

2. Planning and Milestones

The planning has been altered from the one presented in the summer. It is as follows:

Short Term

1Q '98 Prepare a list of needs of each experiment

2Q '98 Finish market survey of commercial control systems

Medium Term

T.B.D. Recommend which control system to use

 

The requirements for the short term and the final needs should be de-coupled but the same group should work on both to avoid divergence.

3. Steering Group

The scope of the project should respect compatibility with DAQ. DCS sits in the domain of Trigger/DAQ projects of the four experiments. It is proposed to constitute the Steering Group (SG) as follows:

 

CO Group: Chairperson +one other representative

Per Experiment: DCS Coordinator, DAQ Project Manager (or another representative)

Ex-Officio: LHC Experiment Team Leaders, IT Deputy Division Leader
(or another representative)

 

It is proposed that David Myers be the Chairperson.

3. Working Model

The Steering Group should initiate activities and monitor the progress along the below mentioned lines:

A number of tools are expected to come from industry. Additional libraries and subsytems should be developed together. The use of a specific tool/subsystem by a single experiment should be avoided or accepted only after scrutiny by the SG. The extent to which the commonality can extend should be maximised by consensus in the SG.

The integration into a detector-specific application (e.g. Inner Tracker or Tile Calorimeter, etc.) should be the responsibility of each experiment.

The experiment representatives should inform their respective Collaborations of these activities.

4. Monitoring and Reporting

The project should become an LCB project as soon as possible and hence monitored by this peer review body.

Table 1: Composition of the Working Group

 

ALICE: P. G. Innocenti, K. Safarik, P. Vande Vyvre

ATLAS: C. Fabjan, J. Knobloch, L. Mapelli

CMS: S. Cittolin, M. Pimia, T. S. Virdee

LHCB: J. Harvey, H. J. Hilke, B. Jost

Experiment/IT Contacts:

H. R. Renshall (ALICE), S. Jarp (ATLAS), F. Gagliardi (CMS)

Nominated by IT Division Leader:

D. Jacobs, G. Kellner, L. Robertson

ECP: P. Gavillet

 

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