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EURISOL-NET 27 June 2011 Alberto Andrighetto Recent results on development of the SPES production target Alberto Andrighetto LNL-INFN.

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Presentation on theme: "EURISOL-NET 27 June 2011 Alberto Andrighetto Recent results on development of the SPES production target Alberto Andrighetto LNL-INFN."— Presentation transcript:

1 EURISOL-NET 27 June 2011 Alberto Andrighetto Recent results on development of the SPES production target Alberto Andrighetto LNL-INFN

2 EURISOL-NET 27 June 2011 Alberto Andrighetto The SPES project at LNL Facility layout Existing Piave-Alpi building ISOL FACILITY INTERDISCIPLINARY APLLICATIONS FACILITY SPES is: 1) A second generation ISOL facility (for neutron-rich ion beams) 2) An interdisciplinary research center (for p,n applications)

3 EURISOL-NET 27 June 2011 Alberto Andrighetto SPES: a mid-term ISOL facility 3 main items… Driver: Post Accelerator: ‘Commercial’ cyclotron Piave- Alpi existing complex ALPI PIAVE Production Target: NEW CONCEPT ! (Multi-foil UCx target) Target-Ion Source Complex: - 5 Working groups - 5 Labs

4 EURISOL-NET 27 June 2011 Alberto Andrighetto The SPES TIS complex I Line = 200A I Target = 700A

5 EURISOL-NET 27 June 2011 Alberto Andrighetto I =1300 A P = 9 kW T in = 1850 °C P = 9 kW ! On line test with 9kW imposed into the target -> successfully tested ! The SPES target chamber complex T out = 30 °C Pyrometer FEM model

6 EURISOL-NET 27 June 2011 Alberto Andrighetto The SPES Front end complex (evolution of Isolde FE6) 60 kV platform Beam diagnostic devices Beam transport devices Traget & Ion source (platform 30kV) Proton beam line Front end running since June ‘10

7 EURISOL-NET 27 June 2011 Alberto Andrighetto WP01 Ion Source developments (M. Manzolaro) WP04 Target handling (M. Guerzoni, A. Cavazza) WP02 Material developments (L. Biasetto, S. Corradetti) WP03 Laser developments (D. Scarpa, P. Benetti) SPES TARGET Work Packages WP05 Controls (J. Vasquez, J. Montano)

8 EURISOL-NET 27 June 2011 Alberto Andrighetto The TIS SPES Laboratories HT LNL LabTest Bench LNL Lab Carbide Chemistry LNL Lab UCx Chemistry PADOVA Lab Laser PAVIA Lab

9 EURISOL-NET 27 June 2011 Alberto Andrighetto Surface Ion source 12 HHe 34567910 LiBeBCNOFNe 1112131415161718 NaMgAlSiPSClAr 192021222324252627282930313233343536 KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr 373839404142434445464748495051525354 RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe 555657727374757677787980818283848586 CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn 878889104105106107108109110111112 FrRaAcRfDbSgBhHsMt 8 Elements with bad volatility (NOT EXTRACTED) Surface Ionization Method Laser beam Laser with SIS Photo Ionization Method Ionization Method Plasma Ionization Method WP1: IONIZATION methods for n-rich RIB’s (3 methods, 2 Ion sources) Main fission (p-> 238 U) fragments Plasma Ion source

10 EURISOL-NET 27 June 2011 Alberto Andrighetto The SPES Ion Sources 350 A Plasma Ion Source (PIS)Surface Ion Source (SIS)

11 EURISOL-NET 27 June 2011 Alberto Andrighetto SPES Ion Sources Surface Ion Source: Mass marker capillarity technique

12 EURISOL-NET 27 June 2011 Alberto Andrighetto SPES SIS Ion Source Cesium Surface Ionization Calibrated solution of CsNO 3 Solution drying Insertion in the tube Tantalum substrate

13 EURISOL-NET 27 June 2011 Alberto Andrighetto SPES Ion Sources Plasma Ion Source: Calibrated leak gas inlet technique

14 EURISOL-NET 27 June 2011 Alberto Andrighetto SPES PIS Ion Source Argon Plasma Ionization

15 EURISOL-NET 27 June 2011 Alberto Andrighetto WP2: Lanthanum carbide synthesis Vertical Carbothermic reduction (1600°C, high vacuum) La 2 O 3 + 11C → 2LaC 2 + 4C + 3CO OXIDE + GRAPHITE GREEN PELLETS CARBIDE/GRAPHITE (LaCx) PELLETS

16 EURISOL-NET 27 June 2011 Alberto Andrighetto Boron carbide (B 4 C) production Boric acid B(OH) 3 + citric acid C 6 H 8 O 7 Solution of the acidGel formation Grounding of the dried gel Thermal treated powder High temperature sintering Thermal treatment : up to 800°C in low vacuum (5*10 -2 mbar), 0.5 °C/min up to 1500°C in vacuum with Ar flow (1 mbar), 1÷3°C/min 2 hours at 1500°C B 4 C formation after primary thermal treatment HT SINTERING

17 EURISOL-NET 27 June 2011 Alberto Andrighetto As pressed Post-cured After burn-out Final carbide Transition metal carbides production 1. High melting point 2. High thermal and electrical conductivity 3. Chemical inertness up to very high temperatures M x O y + (x+y+n)C → xMC + yCO + nC, M=Zr,Ta,Hf ZrC foams

18 EURISOL-NET 27 June 2011 Alberto Andrighetto On line UCx test at HRIBF Seven UC 2 samples SPES Target Group (in collaboration with HRIBF) Densities in the range of 4.2 g/cm 3 Used the SPES design where the targets are spaced out to allow for enhanced radiation to the walls of the container Heated to 2000° C for about two weeks without any out-gassing or obvious change in structure (samples observed after the on-line test) 7 UCx pellets of 13 mm. diameter Thanks to Dan Stracener and ORNL-TIS group

19 EURISOL-NET 27 June 2011 Alberto Andrighetto (2000°C on target) Isotopes measured at the after the mass separator Proton energy = 40MeV On line UCx test at HRIBF N-Rich Isotopes yields

20 EURISOL-NET 27 June 2011 Alberto Andrighetto New target for next HRIBF test SPES UCx-CNT for ORNL : on line test planned for October ‘11

21 EURISOL-NET 27 June 2011 Alberto Andrighetto LPX200 XeCl excimer laser WP3: laser test at LNL with excimer Aluminum ionization with a single wavelength Laser beam Pulse. 15 ns λ=308 nm Al photo ionization Phosphorescence of λ=308 nm on Teflon The laser beam shape is focalized into hot cavity of 3 mm. diameter and 6 m. far away

22 EURISOL-NET 27 June 2011 Alberto Andrighetto Aluminium photo-ionization Laser off Laser On First ionization results (Current collected into the Faraday Cup )

23 EURISOL-NET 27 June 2011 Alberto Andrighetto WP4: The target handling Two systems in order to increase the handling security level

24 IFAE : April 29, 2011 Alberto Andrighetto Vertical handling system

25 EURISOL-NET 27 June 2011 Alberto Andrighetto WP5: Safety Control System PLC Touch Screen Interface

26 EURISOL-NET 27 June 2011 Alberto Andrighetto The Front End Console Control Diagnostic -Power supplies: -Ion source complex -High voltage -Deflectors -Quadrupoles -Beam matching calculation -Target chamber temperature measuring -Real time diagnostics: -Faraday cup -Beam profile monitor -Efficiency measurements: -Surface and/or laser ion source (integrative) -Plasma ion source (instantaneous) -Emittance measurement Two Monitor:

27 EURISOL-NET 27 June 2011 Alberto Andrighetto control side Controls of ion source complex power supplies The Front End Console

28 EURISOL-NET 27 June 2011 Alberto Andrighetto diagnostic side Beam profile monitor and Faraday cup profiles beam spot beam current The Front End Console

29 EURISOL-NET 27 June 2011 Alberto Andrighetto SPES TARGET UNIPVUNIPDUNITN DIMDSCDEI ION SOURCESMATERIALS DIM DSC CERN- ISOLDE GANIL-SPIRAL 2 ORSAY-ALTO TRIUMF- ISACKoRIA-KOREA HANDLING CONTROLS The SPES Target: collaborations network KEK- TRIAC INFN- Pavia INFN- Milano INFN- LNS INFN- Bologna INFN- Padova ORNL- HRIBF Since 2004: 35(!) thesis performed in the frame of target SPES activities LASER

30 EURISOL-NET 27 June 2011 Alberto Andrighetto The SPES-TIS tree… Thanks for your attention!

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