Introdcution to Workpackage/Activity Reflection D. Schulte

Introduction We have to prepare the plan for the next phase – “Project Preparation Phase” from 2011 until 2016 Workpackages are needed – For CERN groups – For collaborators – The structure of workpackages might be different for the two cases Current schedule – CASC meeting on February 4 th – Meeting with sector management on February 7 th – Full workplan in summer But need to understand what we need to do first – Also deal with a number of activities that are not obvious to formulate as workpackages (e.g. integrating activities) – For the moment do not worry about the difference – Will have to adjust workpackages in any case depending on collaborations

Operational Objectives Define the scope, strategy and cost of the project implementation. Main input: The evolution of the physics findings at LHC and other relevant data Findings from the CDR and further studies, in particular concerning minimization of the technical risks, cost, power as well as the site implementation. A Governance Model as developed with partners. In order to achieve the overall goal for 2016 the follow four primary objectives for 2011—16 can defined: - to be addressed by activities (studies, working groups, task forces) or work-packages (technical developments, prototyping and tests of single components or larger systems at various places) Define and keep an up-to-date optimized overall baseline design that can achieve the scope within a reasonable schedule, budget and risk. Beyond beamline design, the energy and luminosity of the machine, key studies will address stability and alignment, timing and phasing, stray fields and dynamic vacuum including collective effects. Other studies will address failure modes and operation issues. Indentify and carry out system tests and programmes to address the key performance and operation goals and mitigate risks associated to the project implementation. The priorities are the measurements in: CTF3+, ATF and related to the CLIC Zero Injector System-tests related to verification of some of the issues mentioned under 2) needed.… still to be specified (technical work-packages and studies addressing system performance parameters) Develop the technical design basis. i.e. move toward a technical design for crucial items of the machine and detectors, the MD interface, and the site. Priorities are the modulators/klystrons, module/structure development including testing facilities, and site studies. (technical work-packages providing input and interacting with all points above) From ACE presentation of Steinar Stapnes

Operational Objectives Define the scope, strategy and cost of the project implementation. Main input: The evolution of the physics findings at LHC and other relevant data Findings from the CDR and further studies, in particular concerning minimization of the technical risks, cost, power as well as the site implementation. A Governance Model as developed with partners. In order to achieve the overall goal for 2016 the follow four primary objectives for 2011—16 can defined: - to be addressed by activities (studies, working groups, task forces) or work-packages (technical developments, prototyping and tests of single components or larger systems at various places) Define and keep an up-to-date optimized overall baseline design that can achieve the scope within a reasonable schedule, budget and risk. Beyond beamline design, the energy and luminosity of the machine, key studies will address stability and alignment, timing and phasing, stray fields and dynamic vacuum including collective effects. Other studies will address failure modes and operation issues. Indentify and carry out system tests and programmes to address the key performance and operation goals and mitigate risks associated to the project implementation. The priorities are the measurements in: CTF3+, ATF and related to the CLIC Zero Injector System-tests related to verification of some of the issues mentioned under 2) needed.… still to be specified (technical work-packages and studies addressing system performance parameters) Develop the technical design basis. i.e. move toward a technical design for crucial items of the machine and detectors, the MD interface, and the site. Priorities are the modulators/klystrons, module/structure development including testing facilities, and site studies. (technical work-packages providing input and interacting with all points above) Contribute to Play key role Interface with Beam Physics role

Objectives for Now Define the beam physics work that needs to be done until 2016 – Contribution to baseline design Identify and prepare the critical beam experiments that need to be performed – Also need to identify our involvement Identify the critical hardware items that need to be addressed – Make sure that all critical items are covered

Baseline Design Objectives for 2016: – Provide the beam line designs for the CLIC baseline that can achieve the goals with reasonable schedule, budget and risk Have documented lattices for all areas Have component specifications that are agreed with hardware experts, including tolerances (alignment, field quality etc.) Have defined the required beam-based tuning and correction algorithms Have define the feedback concepts (location of correctors, sensors etc.) – Provide supporting evidence that the performance goal (mainly luminosity) can be met with this design Experience Analytic calculations Simulations Conclusions from experiments Define and keep an up-to-date optimized overall baseline design that can achieve the scope within a reasonable schedule, budget and risk. Beyond beamline design, the energy and luminosity of the machine, key studies will address stability and alignment, timing and phasing, stray fields and dynamic vacuum including collective effects. Other studies will address failure modes and operation issues.

Baseline Design Objectives for the – Provide the beam line designs for the CLIC baseline that can achieve the goals with reasonable schedule, budget and risk Use CDR to define baseline Complete the beam line designs Improve the beam line designs for cost, technical risk and performance Adjust to changes in scope – Provide supporting evidence that the performance goal (mainly luminosity) can be met with this design Perform studies of luminosity Address key issues Define and evaluate key experiments Define and keep an up-to-date optimized overall baseline design that can achieve the scope within a reasonable schedule, budget and risk. Beyond beamline design, the energy and luminosity of the machine, key studies will address stability and alignment, timing and phasing, stray fields and dynamic vacuum including collective effects. Other studies will address failure modes and operation issues.

Work Package/Activity Structure Reasonable approach is to use a matrix – Work packages/activities for the areas Sources, damping rings, RTML, main linac, BDS, MDI, post collision line, drive beam generation, drive beam decelerator, CLIC0 lattice Contains lattice design, component specifications/interface to hardware, beam-based alignment and tuning, feedback layout – Work packages/activities that address key integral issues Parameter definition, lattice integration/interfaces – Staging, trade-offs, overall optimisation, … Integrated luminosity study Key issues – E.g. luminosity stability in presence of mechanical motions, phase jitter, unreliable components, feedback – Generation of background – Polarisation – Specific work packages/activities that address key issues E.g. beam tests in ATF2, SLS, CTF3, …