FAIR@GSI Project H. Simon NUSTAR Ann. Meeting 2014 Menu: NUSTAR - PowerPoint PPT Presentation

FAIR@GSI Project H. Simon – NUSTAR Ann. Meeting 2014

Menu: NUSTAR related systems  The heavy ion injector upgrade  Status FAIR accelerators  Primary beam chain: SIS100 – SC magnets – magnet testing  HEBT  Super-FRS – target region and magnets  Storage Rings – Collector Ring H. Simon – NUSTAR Ann. Meeting 2014

FAIR accelerator challenges Diagnostic and XHV at highest intensities Superconducting magnets Rf-cavities Beam cooling FLAIR IR H. Simon – NUSTAR Ann. Meeting 2014

Preparing the Injector Chain Exchange of 35 years old Alvarez accelerator With modern interdigital H-type structures Higher intensities  28 GHz ECRIS SIS 18 upgrade UNILAC upgrade Fast ramping, enhanced intensity High power (high intensity), per pulse short pulses  Increase of injection acceptance  Increase of beam brilliance (Beam  Improvement of lifetime for low- current / emittance) charged U-ions  Increase of transported beam currents  Increase of beam-intensity per time  Improvements of high current beam due to reduction of SIS18- cycle time diagnostics / operation H. Simon – NUSTAR Ann. Meeting 2014

SIS18 high current upgrade SI S-Ring with modifications Main tasks: • pulse power conn. finished (12 Tm fast ramping) • new injection system finished • Dynamic vacuum: * UHV upgrade * ion catcher system, collimators * optimized beam diagnostics (RGM) • Theoretical Investigations ( and machine Experiments ) • Bunch compression H. Simon – NUSTAR Ann. Meeting 2014

SIS100 synchrotron APPA APPA H. Simon – NUSTAR Ann. Meeting 2014

Challenges of the SC-magnets development for SIS100 Fast ramped magnets (synchrotrons)  Dynamic load and AC heat losses Bρ = 100 Tm | Bmax= 1.9 T | dB/dt= 4 T/s  High field quality, low multipole strength 1000 MeV/u 1000 MeV/u 50 Tm 50 Tm SIS100 SIS100 5 x 10 11 U 28+ 5 x 10 11 U 28+ 5 x 10 11 U 28+ 200 MeV/u 200 MeV/u 18 Tm 18 Tm SIS18 SIS18 11.4 11.4 MeV/u MeV/u sec sec sec 1 1 1 R&D Goals - Reduction of eddy / persistent current effects - Guarantee of long term mechanical stability (≥ 2*10 8 cycles ) (mechanical stress  coil restraint) H. Simon – NUSTAR Ann. Meeting 2014

SIS100 dipole modules: First magnet Assembly on dedicated rig: 1. Place thermal shield in cryostat 2. Pull magnet into cryostat and suspend on rods 3. Align with laser-tracker Delivered to GSI: June 3 rd 2013 → H. Simon – NUSTAR Ann. Meeting 2014

SIS100 QDMs – collaboration GSI / Dubna Integration into cryostat  GSI cryostat will be procured by GSI cryo-collimator  german SIS100 quadrupole unit (will be built by Dubna) in-kind H. Simon – NUSTAR Ann. Meeting 2014

Preparation for FOS Testing: Power Converter • upgrade of power converter → 20 kA • first using ACU and thyristor + active filter • „prototype“ for machines • commissioned with sc. model magnet • currently last fine tuning • ramp controller tested Power converter during assembly H. Simon – NUSTAR Ann. Meeting 2014

Test Facilities: GSI, Dubna, CERN  Testing of SIS100 Dipoles and prototypes at GSI  Testing of SIS100 quadrupole units at Dubna  Testing of Super-FRS magnets at CERN  3 — 4 Test benches for SIS100 dipoles  String test preparation in parallel  Utilities in Annex building (cryo supply, power converters, ...) H. Simon – NUSTAR Ann. Meeting 2014

HEBT system lay-out of transfer lines SFRS SIS100/300 DUMP SIS18 H. Simon – NUSTAR Ann. Meeting 2014

Super-FRS at FAIR Primary Beams • 3·10 11 238 U 28+ /s (Slow extr.) @ 1.5 GeV/u Circ = 1.1 km • 4·10 11 238 U 28+ (pulsed) @ 1 GeV/u • factor 100 in intensity over present APPA APPA Secondary Beams  Broad range of radioactive beams up to 1.5 GeV/u  up to factor 10 000 in intensity over present H. Simon – NUSTAR Ann. Meeting 2014

Work on the Super-FRS SC Multiplets Remote Handling Local Cryogenics Target SC Dipoles Radiation Resistant Magnets H. Simon – NUSTAR Ann. Meeting 2014

SC Magnets • Prototype succesfully tested in 2011 • Specifications finished • Collaboration with CEA/SACLAY • Tender in process: under preparation: Contract negotiations ongoing  Finalising design • Signing of contract: 04/2014  Technical follow-up • Testing of First short multiplet at CERN: • Tender by FAIR 09/15 – 03/16 • First of Series ready for testing at • Testing of first long multiplet at CERN: CERN: 10/15 12/15 – 09/16 • Series production and testing: • Series testing at CERN: 09/16 – 02/19 01/16 – 03/18 H. Simon – NUSTAR Ann. Meeting 2014

Super-FRS target region- collaboration with KVI-CART • Target Chamber with plug inserts Hot Cell • Target Wheel • Collimator • Target Detectors • Hot Cell Complex • Transport Flask • Remote Handling Transport • Beam Catcher Flask • Energy Degrader Target Chamber with Inserts movable beam catcher H. Simon – NUSTAR Ann. Meeting 2014

FAIR ‘materials’ Insulators - SC magnets (SIS100) Carbon materials for Super-FRS: virgin  Mechanism of radiation damage, critical dose breakdown voltage / KV  Structural and thermo-mechanical properties degradation 15 Protons 21 MeV Insulators: protons 800 MeV Carbon 11 MeV/u 10 Uranium 11 MeV/u  critical dose determined Gold 11 MeV/u  break down voltage of insulating material 5 maximum voltage after irradiation 0 1E-8 1E-5 0,01 10 Targets and Beam Catchers - Super-FRS Dose / MGy Swelling Production target Hardening  Investigate radiation damage and failure 1 ×10 13 U i/cm 2 Height / nm 1×10 13 mechanism of FAIR accelerators irrad U-i/cm 2 crystal 1×10 12 U-i/cm 2 materials 1×10 12 U-i/cm 2 pristine  Lifetime estimations for FAIR components pristine  Innovative materials for extreme Beam catcher Scanlength / μm conditions Thermal stress Ablation crater induced crack H. Simon – NUSTAR Ann. Meeting 2014

The FAIR storage rings - NUSTAR: ILIMA Stochastic Cooling system Internal gas-jet target =0.5 m 800 MeV/u - 14 GeV/u x =9 m, D possible position: y =16 m, β CR x β =2.7 m ECOOL 2 MeV PANDA circumference 221 m c L magn. rigidity 13 Tm γ tr =6.2,Q x =Q y =7.62 max. B ρ =50 Tm acceptance ε x,y = APPA APPA 240 (200) mm mrad ∆ p/p = ± 2.7 (1.5) % C=575 m HESR H. Simon – NUSTAR Ann. Meeting 2014

CR – responsibility to BINP Proposal to consider the entire CR machine (except stochastic cooling and CR-debuncher), as Russian in ‐ kind contribution (similar to the HESR with Jülich) • MoU signed (Oct. 2013) • Contract Preparations ongoing. • Workshop on Workpackages: 24-28.2.2014 • TDR just accepted (Feb. 2014) H. Simon – NUSTAR Ann. Meeting 2014

Summary Progress in several NUSTAR relevant packages:  FAIR starts with the injectors UNILAC and SIS 18 high current upgrade  SIS100 SC magnets – dipole FOS, QDM design, test facility Beam dynamics HEBT  Super-FRS Superferric magnets, test facility, target region  Storage Rings Transfer of technical responsibility of CR to Budker institute H. Simon – NUSTAR Ann. Meeting 2014