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Proposed subjects of collaboration between IHEP and CERN. Linear Colliders: CLIC(CTF3) J.P. Delahaye, J. Gao, J.Q. Wang. Tentative list of possible subjects of collaboration on CTF3. IHEP has potential to contribute to some sub-systems of CTF3
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Proposed subjects of collaboration between IHEP and CERN Linear Colliders: CLIC(CTF3) J.P. Delahaye, J. Gao, J.Q. Wang
Tentative list of possible subjects of collaboration on CTF3 • IHEP has potential to contribute to some sub-systems of CTF3 • Concentrate on possible subjects with well identified common interest between IHEP and CERN • Beneficial to both laboratories
BEPCII – CTF3common interest • Beam diagnostics: • Bunch length measurement with 3 GHz RF cavity deflector • Cavity beam position monitor • Participation on the development of multi-beam klystrons at low frequency with high efficiency - Common interest to ILC, CLIC • Electron clouds simulation and beam studies • Common interest between BEPC2, LHC and CLIC
FEL – CTF3Common interest • Beam dynamics of short and high peak intensity bunches • Bunch length manipulation and compression with magnetic chicane • Beam diagnostics: • Measurement of single bunch longitudinal and transverse emittances
Specific proposal of collaboration • Possible fabrication of some magnetic components for CTF3-TL2: 5 bending magnets,17 quadrupoles (2007) • Specification and material budget possibly provided by CERN • Man-power provided by IHEP if workshop can be made available in due time • Possibly participation to the design, construction, installation and commissioning by IHEP of TBL line (2008): • Beam dynamics of short, high intensity bunches with bunch length compression • Magnetic components: Bending&quadrupoles • Beam diagnostics: BPM, single bunch emittance, Bunch length measurement with RF deflector.
TL1:5 13 CR:12 48 TL2:5 17 bending magnets quadrupoles Number of dipoles and quadrupoles TOTAL NEEDED 22 bending magnets 78 quadrupoes 24 sextupoles 4 septa 2 wigglers 32 correctors TO BE BUILT 10 bending magnets 18 quadrupoles* 1 wiggler* 10 correctors* * A design exists TL2 Transfer Line to CLEX
F D F D D D D D D D D D D D D D D D D F F F F F F F F D D F D F F LIL-ACS LIL-ACS 13 m D F D D F D D F 3m F F F F F F F F D D D D D D D D 2m F D F D CLIC experimental area (CLEX) - Test beam line (TBL) to study RF power production (5 TW at 30 GHz) and drive beam decelerator dynamics, stability & losses - Two Beam Test Stand to study probe beam acceleration with high fields at high frequency and the feasibility ofTwo Beam modules 40 m TBL DUMP DUMP DUMP DUMP 6 m 8 m 30 GHz Teststand DUMP DUMP Probe beam injector 15 m DUMP Instrumentation Testbeam 1m wide passage all around Layout for CLEX floor space
Additional possible collaboration • Mutual exchange of experts (beam studies, beam dynamics…) • Participation to CTF3 Operation and beam commissioning • Participation to RF conditioning of structures