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Actividades del grupo de aceleradores del CIEMAT en los grandes aceleradores lineales en proyecto Actividades del grupo de aceleradores del CIEMAT en los grandes aceleradores lineales en proyecto David Carrillo en nombre de la Unidad de Aceleradores

Índice Contribución a CLIC–CTF 3 (PETS, quads, kicker) ◦ PETS TBL Diseño y fabricación Índice Contribución a CLIC–CTF 3 (PETS, quads, kicker) ◦ PETS TBL Diseño y fabricación Medidas Contribución a XFEL Linac CIEMAT

CLIC (Compact Linear Collider) CLIC (Compact Linear Collider)

CTF 3 (CLIC Test Facility 3) CTF 3 (CLIC Test Facility 3)

CTF 3 Contribution Septa Fast Kicker 16 TBL quad Movers Tail Clipper Kicker 33 CTF 3 Contribution Septa Fast Kicker 16 TBL quad Movers Tail Clipper Kicker 33 Horizontal/Vertical Correctors 4 TBL PETS * In 2004, CIEMAT joined the CTF 3 experiment test the feasibility CLIC(CERN). to of Our contribution consistsof the deliveryof differentcomponents for the Combiner Ring and also for the Transfer Lines and the Test Beam Line. In this participation, with an overall budget of around 1, 5 M€, we had an important industrial contribution.

TBL PETS Contribution. PETS (Power Extraction and Transfer Structure) RF design Previous design 30 TBL PETS Contribution. PETS (Power Extraction and Transfer Structure) RF design Previous design 30 GHz PETS (4 waveguide extractor) RF optimization Power extracted Final version: 12 GHz PETS (2 waveguide extractor) Electron beam Power extracted Electric field produced when The electrons are “decelerated”

TBL PETS Contribution General layout Fiducials Cooling pipes WR 90 waveguide Copper rods Power TBL PETS Contribution General layout Fiducials Cooling pipes WR 90 waveguide Copper rods Power extractor Vacuum port Supports

TBL PETS Contribution Copper rods Each PETS was made of eight OFE copper rods TBL PETS Contribution Copper rods Each PETS was made of eight OFE copper rods (800 mm) These were the most difficult parts to fabricate: overall tolerance is +/- 0. 02 mm and roughness should be better than 0. 4 micron The coupling cell is smaller: two different tools were necessary Two intermediate thermal treatments for stress relaxation Copper rod 8

TBL PETS Contribution Cooling pipes production 9 TBL PETS Contribution Cooling pipes production 9

TBL PETS Contribution Waveguides brazed in Spanish company AIMEN 10 TBL PETS Contribution Waveguides brazed in Spanish company AIMEN 10

TBL PETS Contribution Brazing in Spain • Brazing consists of the joining of metals TBL PETS Contribution Brazing in Spain • Brazing consists of the joining of metals through the use of heat and a filler metal – one whose melting temperature is above 450°C but below the melting point of the metals being joined • There have been some problems: • Furnace has not view port • It has graphite heating elements • Copper machining (flatness, roughness) 11

TBL PETS Contribution Power extractor. Brazing at CERN Courtesy Serge Mathot, CERN • Copper TBL PETS Contribution Power extractor. Brazing at CERN Courtesy Serge Mathot, CERN • Copper parts were polished at CERN, because they were not flat enough • Copper parts were cleaned by ultrasonic bath, and at CERN, they were also etched and passivated • Power extractor was successfully brazed at CERN 12

TBL PETS Contribution PETS tank assembly (I) 13 TBL PETS Contribution PETS tank assembly (I) 13

TBL PETS Contribution PETS tank assembly (II) 14 TBL PETS Contribution PETS tank assembly (II) 14

Índice Contribución a CLIC (PETS, quads, kicker. . ) ◦ PETS TBL Diseño y Índice Contribución a CLIC (PETS, quads, kicker. . ) ◦ PETS TBL Diseño y fabricación Medidas Contribución a XFEL Linac CIEMAT

TBL PETS Contribution Single rod RF test bench A special test bench has been TBL PETS Contribution Single rod RF test bench A special test bench has been designed to do RF measurements on each rod It consisted of two side blocks put together with a single PETS bar in order to create inside a mode with same properties as decelerating mode Results agree with 3 -D measurements HFSS model E field and probe Mode TE 10 Phase S 31 vs position

TBL PETS Contribution Mode launcher was needed to produce working mode in order to TBL PETS Contribution Mode launcher was needed to produce working mode in order to do RF measurements on PETS before final assembly HFSS input coupler model Two mode launchers were manufactured and measured and they were ok for measuring PETS final assembly Input couplers manufactured 17

TBL PETS Contribution Power extractor test bench Port 1 Port 2 Coax to WR TBL PETS Contribution Power extractor test bench Port 1 Port 2 Coax to WR 90 Input Coupler A b s o r b e r Port 4 Choke Power Extractor A b s o r b e r Coax to WR 90 Input Coupler A b s o r b e r Port 3 18

TBL PETS Contribution Power extractor measurements S 11 Experimental results S 11 HFSS Simulation TBL PETS Contribution Power extractor measurements S 11 Experimental results S 11 HFSS Simulation 0 -511. 5 12 12. 5 -10 -15 S 11 (d. B) -20 -25 -30 -35 -40 -45 -50 Frequency (GHz) No visible change in S 11 when removing wire, or absorber from port 4 Both S 21 and S 31 are aprox. -3 d. B at 12 GHz 19

TBL PETS Contribution PETS RF measurement bench • A special test bench was designed TBL PETS Contribution PETS RF measurement bench • A special test bench was designed to measure the assembly of rods • A coaxial antenna was used to measure the field through the slots between the rods 20

TBL PETS Contribution Dispersion Curve In the worst case a 10% power loss extraction TBL PETS Contribution Dispersion Curve In the worst case a 10% power loss extraction is expected 12100 12075 12050 12025 12000 11975 Freq (MHz) 11950 11925 Dispersion curve 11900 11875 11850 11825 11800 11775 11750 11725 11700 88. 5 88. 7 88. 9 89. 1 11944 MHz 89. 3 89. 5 89. 7 89. 9 90. 1 90. 3 Phase advance (degrees) 90. 5 90. 7 90. 9 50 MHz detuning 21

TBL PETS Contribution Sensitivity Analysis Distance from PETS cell peak to axis Distance from TBL PETS Contribution Sensitivity Analysis Distance from PETS cell peak to axis Distance from peak to valley In principle frequency looks quite sensitive to the profile flatness and to the distance from peak to valley Beam axis Inc. Rb Radius of curvature Ra A sensitivity analysis is ongoing to understand the cause of this detuning 22

TBL PETS Contribution TBL Commissioning Status RF power produced Courtesy Steffen Doebert, CERN RF TBL PETS Contribution TBL Commissioning Status RF power produced Courtesy Steffen Doebert, CERN RF pulse phase Beam current along the line Ø up to 10 A through PETS Ø 20 MW max produced at a pulse length of 280 ns Ø Power production consistent assuming a form factor of 0. 9 ØPETS series production launched together wit CIEMAT(series of 8) 23

TBL PETS Contribution BPM, Quad Mover, Quad, PETS-tank Courtesy Steffen Doebert, CERN TBL prototype TBL PETS Contribution BPM, Quad Mover, Quad, PETS-tank Courtesy Steffen Doebert, CERN TBL prototype beam line spring 2009 24

Índice Contribución a CLIC (PETS, quads, kicker. . ) ◦ PETS TBL Diseño y Índice Contribución a CLIC (PETS, quads, kicker. . ) ◦ PETS TBL Diseño y fabricación Medidas Contribución a XFEL Linac CIEMAT

XFEL CONTRIBUTION LASER LIGHT SOURCES: XFEL (1) • CIEMAT is collaborating since 2004 in XFEL CONTRIBUTION LASER LIGHT SOURCES: XFEL (1) • CIEMAT is collaborating since 2004 in the internationalproject XFEL (X-Ray Free Electron Laser) to be installed in DESY (Hamburg). • It is a Laser Light Pulsed Source of 100 ns durationpulses in the band from 0. 085 to 6 nm. • It consistsof a Superconducting LINAC ( cavities and magnets) up to 20 Ge. V plus an array of undulators based on permanent magnets. Our contribution valuedin about 12 M€ and our commitment is consistof the delivery of the following systems: • 120 Superconducting Magnets plus their Power Supplies. • 91 Intersections between undulators made from different elements

XFEL CONTRIBUTION LASER LIGHT SOURCES: XFEL (2) Combined Superconducting Magnet for XFEL (2006) * XFEL CONTRIBUTION LASER LIGHT SOURCES: XFEL (2) Combined Superconducting Magnet for XFEL (2006) * Within the first contribution, our group has developeda short series of four superconductingcombined magnets (one quadrupole + two dipoles) while the remaining 100 magnets will be developed by industry. The design is being reviewed to decrease the magnetization effects. Combined Superconducting Magnet for XFEL Installed in the “XFEL String” (2007) Magnetization Measurements for the Combined Superconducting Magnet for XFEL (2007)

XFEL CONTRIBUTION LASER LIGHT SOURCES: XFEL (3) General Scheme for the XFEL Interseccions * XFEL CONTRIBUTION LASER LIGHT SOURCES: XFEL (3) General Scheme for the XFEL Interseccions * Withinthe secondcontribution, CIEMATmust deliversome main components of the intersections betweenundulators, well as its full assembly(optional). as These components are: * The Phase Shifter. Magnet(includinga magneticmeasuringtable to measureits field quality) * The MOVERS for the quadrupoles * The base structure for the full Intersection

XFEL CONTRIBUTION LASER LIGHT SOURCES: XFEL (4) Measurement bench 3 D Model by CIEMAT XFEL CONTRIBUTION LASER LIGHT SOURCES: XFEL (4) Measurement bench 3 D Model by CIEMAT Mover 3 D Model by CIEMAT Phase Shifter 3 D Model by CIEMAT

Índice Contribución a CLIC (PETS, quads, kicker. . ) ◦ PETS TBL Diseño y Índice Contribución a CLIC (PETS, quads, kicker. . ) ◦ PETS TBL Diseño y fabricación Medidas Contribución a XFEL Linac CIEMAT

MULTIPURPOSE: THE CIEMAT LINAC CIEMAT is considering to install a multipurposeacceleratorto study some of MULTIPURPOSE: THE CIEMAT LINAC CIEMAT is considering to install a multipurposeacceleratorto study some of the applicationspresented in this table. A first analysis has been performed at Bevatech and there an existing proposal based on IH cavities ION SOURCE Ion Species Proposal for a LINAC-CIEMAT based on IH Cavities at room temp. Parameter H, D, He A/q=2 Beam Current Up to 1 m. A Beam Emittance 0. 4 -0. 8 Extraction voltage 3 -20 k. V RFQ Input Energy Output Energy Operation RF Frequency Duty cucle Parameter 3 -10 (Ake. V) 300 -1000 (Ake. V) 175 MHz >1% (possibility cw) DTL Input Energy Output Energy Operation RF Frequency Upgrade option Energy variability Parameter 300 -1000 (Ake. V) 30 (AMe. V) 175 MHz Yes, up to 50 (AMe. V) Yes in 5 steps