First operation of the TTF2 injector with beam Jean-Paul Carneiro DESY Hamburg TESLA COLLABORATION MEETING DESY Hamburg, 16 Sept 2003

TTF2 INJECTOR SCHEMATIC Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM BC 2 (1)From P.Piot, EPAC 2002, p (2) From S. Schreiber, private communication ACC 1 DOUBLETS. H.TRIPLET RF GUN + SOLENOIDES dump Bunch Charge1 nCOK Laser Diameter 3 mm (uniform)OK Laser pulse length 20 ps flat top + 3 ps rise time20 ps flat top + 6 ps rise time Solenoid Bmax163 mTOK Phase Gun34 DegOK Field Cathode40 MV/mOK ACC1 (cav 1 to 4)12.5 MV/m15 MV/m ACC1 (cav 5 to 8)20 MV/m15 MV/m Phase ACC Deg (w.r.t max energy) on crest ACC3914 MV/mnot present Phase ACC Deg (w.r.t max energy)not present Nominal Operation (1)First Operation (2) STOP SIMULATIONS AT Z =19 M

Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM TTF2 LASER (ASTRA GENERATOR OUTPUTS, 2E5 p.) Transverse distribution : uniform, r = 1.5 mm Longitudinal distribution : uniform, L=20 ps with ~5 ps rise times Thermal emittance : 55 keV From TELSA-FEL (K. Floettmann) : Longitudinal distribution Transverse distribution

Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM PHASE SCAN OF TESLA XFEL WITH ASTRA TTF2 NOMINAL : 40 MV/m, T, L = 20 ps + 3 ps rise time, r =1.5 mm (plot presented at the S2E Workshop, DESY ZEUTHEN, AUG-2002,

ENERGY AND ENERGY SPREAD Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM

Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM LONG. PHASE SPACE AT Z=19 M (END INJECTOR) TAIL HEAD TAIL NOMINALFIRST OPERATION

EMITTANCE AND ENVELOPE Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM

Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM BUNCH LENGTH

Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM SPOT AND TRANSVERSE PHASE SPACE (AT Z =19 M)

Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM SLICE EMITTANCE AND RMS SIZE (19 M)

Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM CURRENT DISTRIBUTION (AT Z =19 M)

Jean-Paul CarneiroFIRST OPERATION OF THE TTF2 INJECTOR WITH BEAM CONCLUSION CHARGE 1 nC 1 nC MOMEMTUN MeV/c MeV/c ENERGY SPREAD 0.9 [%] 0.2 [%] RMS EMITTANCE 1.28 [mm-mrad] 1.75 [mm-mrad] RMS SIZE 0.41 [mm] 0.41 [mm] BUNCH LENGTH 1.88 [mm] 2.1 [mm] PEAK CURRENT ~ 60 [A] ~ 40 [A] SLICE EMITTANCE ~ 1 [mm-mrad] ~ 1 [mm-mrad] NOMINALFIRST OPERATION