ESS-Bilbao project. J.L. Muñoz, ESS-Bilbao Duan year Spain-Russia Barcelona, 10.Nov.2011

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1 ESS-Bilbao project J.L. Muñoz, ESS-Bilbao Duan year Spain-Russia Barcelona, 10.Nov.2011

2 Outline ESS-Bilbao project description and collaborations Facilities: Linac and beam characteristics Building Laboratories and applications Linac components: Ion sources LEBT RFQ MEBT/DTL Superconducting section Conclusions

3 ESS-Bilbao ESS-Bilbao is an independent research center devoted to accelerators science and technology, whose main facility is a proton linac currently under development ( ESS-Bilbao building and accelerator tunnel will be built in the Scientific Park of the U.P.V/E.H.U. besides Leioa Campus, very close to Bilbao. About 60 persons are currently involved in the project

4 ESS-Bilbao project Project: ESS-Bilbao, multipurpose high power proton linac Objectives: Become an independent reference lab in Europe specialized in accelerating technologies Allow participation of ESS-Bilbao in international collaboration projects worldwide Strenghten local industrial sector (mechanical, electronic, engineering...) Be used as a test-stand and prototyping for certain compoents for the future ESS-Lund Execution time: 6 years Budget: 180 M (50% MICIN, 50% GV/EJ) International collaborations: ISIS, CERN, SNS, SLAC...

5 ESS-Bilbao linac Stage 1: Stage 1 characteristics: Parameters: 75 kev H+ source + LEBT 3 MeV RFQ 50 MeV 3-tanks DTL ~60 MeV Test cryomodule 50 MeV RF freq: MHz Peak intensity: 75 ma Pulse length: 1.5 ms Repetition: 50 Hz (7.5% duty)

6 ESS-Bilbao project Location: Scientific park in the Leioa Campus of UPV/EHU

7 Building layout

8 Applications and laboratories Applications for the ESS-Bilbao linac are Proton applications: P4M: Protons for materials P4B: Protons for Biology P4I: Protons for aerospace Neutron applications (Be target): ToF: Time of flight (nuclear physics) NS: Neutron scattering NI: test of components

9 Applications and laboratories Parameters:

10 Neutron lab facilities Rotating Be target 20 elements 1 Hz (sync) Beam radius: 5 cm Diameter: 1 m

11 P4B laboratory

12 P4B lab

13 P4M lab Testing of materials used for fusion reactors Components of the first layer of the wall, blanket, will be exposed to neutron fluxes. Objective of P4M lab is to simulate the expected radiation damage using proton beam

14 LINAC components Injector: ISHP+LEBT Magnetic structure and plasma chamber Extraction column High voltage table Power sources Ancillaries and control ATU To be installed and tested in the Feder facility in the Science Faculty of the UPV/EHU

15 Ion sources: ITUR and HSHP ITUR: H- ion source, installed in Zamudio facilities. Succesfull operation (collaboration with ISIS/RAL) HSHP: H+ plasma chamber (identical to ISHP source), built and in operation at Science Faculty facility as plasma laboratory.

16 Ion source ISHP

17 Ion sources Present status (Nov. 2011) H- Penning source: Under operation and testing at Zamudio facilities H+ ECR source: Plasma lab finished and in testing. Plasma chamber and extraction column delivered High voltage table, control and structures under deployment in UPV/EHU facilities.

18 LEBT Solenoids Power sources Vacuum system Support and alignment LEBT solenoids for ISIS FETS project

19 LEBT

20 LEBT Present status (Nov 2011) All design finished Solenoids built and under magnetic testing Vacuum, structural equipment and control devices finished Waiting for DC power sources for full setup and tests with H- ion source.

21 RFQ The RFQ (Radio Frequency Quadrupole) is a device widely used in ion accelerators for first stages of acceleration (up to 3 MeV). It was invented in 1969 by I. Kapchinski and V. Tepliakov It's a 3 in 1 device: Accelerate ions Keep the bunch focused (electric quadrupolar field) Divides adiabatically the beam in bunches

22 RFQ Transverse TE210 like mode Longitudinal vane modulation creates accelerating voltage and bunches

23 RFQ Present status (Nov 2011): Cold model (1 meter long, aluminum) under fabrication EM, beam dynamics design finished Thermal, cooling and vacuum studies on going. Expected all finished before 2013.

24 RFQ

25 DTL Drift Tube Linac: Main accelerating structure (from 3 MeV -> 50 MeV)

26 DTL Collaboration with CERN: Elements for the Linac4 DTL are being fabricated (tanks, drift tubes, girder,...) under coordination by ESSBilbao ESS-Bilbao DTL is a clone of Linac4's

27 DTL Present status (Nov. 2011): Fabrication of mechanical components in parallel to CERN's one. All components expected for Optical desigs (quadrupoles law and magnetic gradients values) to be frozen for Cold model (at 4x freq) for testing EM behaviour expected before the end of Tests will be done in Zamudio facilities before deployment to tunnel

28 Spoke cavities After the normal conducting section, and as a test for future SC section, a cryomodule with two prototypes of spoke cavities will be designed and tested with beam.

29 Spoke cavities Present status (Nov 2011) Collaboration with ESS-SE (Lund) for production of spoke prototypes EM/beam dynamics design frozen Thermo-mechanical cavity design and cryomodule definition ongoing Superconducting cavities lab for R+D activities under definition

30 Conclusions ESS-Bilbao linac specifications and design for the first stage (50 MeV) are almost finished Fabrication of linac components is quite advanced Application laboratories and other facilities are now under design

31 ESS-Bilbao Thank you for your attention!