Module roadmap to end of 2017 The coffee drinkers

Work to be done until end of year New DB Module layout work New K Module layout work Heat to air study Thermal tests Sara’s breakdown compensation method Documentation of current T0#2 and T1 design changes with respect to CDR design T0#1 as CLIC note

Layout summary Rejected ‘rigid’ solution All are feasible in principle PETS DBQ 2x SAS Layout summary Adjustable in assembly hall Rigid PETS DBQ 2x SAS Rejected ‘rigid’ solution All are feasible in principle Main considerations for comparison coming from lifecycle considerations: Transportation Effort (cost/time) of installation in the tunnel RF phasing Cost of actuators/controls T1-T2 compatibility Adjustable in the tunnel “2m module” PETS DBQ 2x SAS “common RF girder” “1m module” PETS DBQ 2x SAS

New DB Module layout work Finish design of “2 DoF support box” Manufacture and test “2 DoF support box” Continue exploring and conclude on designs for common RF girder Implementation into real machine: wire, magnet support, SAS interface, virtual articulation point? Manufacture common RF girder? 2m option, start discussing how the “support structure” (girder + actuators) should look like: wire implementation, in tunnel alignment options Generic open questions: cooling and vacuum design, vacuum valves (sectorization every 2 m? for e.g. module interconnection), structure interconnection, Validate or discard: Klystron lattice (-> important for common RF girder and “1m module”) “1m module” itself useful? Explore further importance and technical implementation of RF phasing Write CLIC note documenting thinking/decision taking process (can be the first part of final deliverable in 2018)

New K Module layout work Options from DB version narrow down Validate and conclude Longitudinal positioning implementation Implementation of auxiliary systems Implementation of survey system

Heat to air study CFD simulations Upgrade hard- and software of lab for better controlled test: Flow meter and temp sensor for climatisation system Flow controller (software) Installation of load heaters and measure the “entire system” (SAS+RF loads) Simple insulation extended to RF loads and decide if useful -> if useful then properly design insulation Study of local micro climatisation station together with C&V Study potential insulation for entire module (lid or cover)

Thermal tests Cooling system compensation of thermal effects in AS (based on flow OR temp) continuation of Sara’s work Thermal-structural FEM Survey campaign static Temp and vacuum ? Transients Chocke mode flange study

Sara’s breakdown compensation method Assess the relevance of this w.r.t. the current breakdown recovery method Assess feasibility of having proportional valves for each AS Question overall cooling layout for module (e.g. loads in series of AS)