© 2003 By Default! A Free sample background from Slide 1 JINR SCIENTIFIC COUNCIL 106 nd Session, 24 September 2009, Dubna JINR SCIENTIFIC COUNCIL 106 nd Session, 24 September 2009, Dubna STATUS of MAJOR BASIC FACILITY PROJECTS of the SEVEN-YEAR: DRIBs – III PROJECT STATUS of MAJOR BASIC FACILITY PROJECTS of the SEVEN-YEAR: DRIBs – III PROJECT S.N. DMITRIEV Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research S.N. DMITRIEV Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research

© 2003 By Default! A Free sample background from Slide 2 BASIC DIRECTIONS of RESEARCH and 1. Heavy and superheavy nuclei  Synthesis and study of properties of superheavy elements  Chemistry of new elements  Fusion-fission and multi-nucleon transfer reactions  Mass-spectrometry and nuclear spectroscopy of SH nuclei and 1. Heavy and superheavy nuclei  Synthesis and study of properties of superheavy elements  Chemistry of new elements  Fusion-fission and multi-nucleon transfer reactions  Mass-spectrometry and nuclear spectroscopy of SH nuclei 2. Light exotic nuclei  Properties and structure of light exotic nuclei  Reactions with exotic nuclei 2. Light exotic nuclei  Properties and structure of light exotic nuclei  Reactions with exotic nuclei 3. Radiation effects and physical bases of nanotechnology

© 2003 By Default! A Free sample background from Slide 3 SOME RESULTS in STUDY of SUPERHEAVY NUCKLEI Synthesis of 5 new elements and 34 new superheavy isotopes Limiting role of quasi-fission in synthesis of SH nuclei Relativistic chemistry of SHE Spectroscopy of SH nuclei

© 2003 By Default! A Free sample background from Slide 4 Discovery of di-neutron inside 6 He Observation of energy structure of neutron-rich exotic nuclei 5 H, 7 H, 10 He Observation of sub-barrier fusion enhancement of 6 He SOME RESULTS in STUDY of EXOTIC NUCKLEI

© 2003 By Default! A Free sample background from Slide 5 DRIBs-IIIDRIBs-III  Modernization of existing accelerators (U400М & U400)  Creation of the new experimental hall (≈ 2600 м 2 )  Development and creation of next generation set-ups  Creation of high current heavy ion accelerator (A≤ 100, E ≤ 10 MeV ·A, I≥10 pµA) (A≤ 100, E ≤ 10 MeV ·A, I≥10 pµA)  Modernization of existing accelerators (U400М & U400)  Creation of the new experimental hall (≈ 2600 м 2 )  Development and creation of next generation set-ups  Creation of high current heavy ion accelerator (A≤ 100, E ≤ 10 MeV ·A, I≥10 pµA) (A≤ 100, E ≤ 10 MeV ·A, I≥10 pµA) ≈ 60 М$

© 2003 By Default! A Free sample background from Slide 6 U400M CYCLOTRON

© 2003 By Default! A Free sample background from Slide new axial injection line; new axial injection line; new “warm” ECR ion source (DECRIS-2); new “warm” ECR ion source (DECRIS-2); new magnetic structure of the central region of U400MR; new magnetic structure of the central region of U400MR; second beam extraction system; second beam extraction system; new producing target for secondary beams; new producing target for secondary beams; new local radiation shielding; new local radiation shielding; superconducting 18-GHz primary beam ion source DECRIS-SC2 (under testing); superconducting 18-GHz primary beam ion source DECRIS-SC2 (under testing); “warm” 14-GHz secondary beam ion source (under testing). “warm” 14-GHz secondary beam ion source (under testing). new axial injection line; new axial injection line; new “warm” ECR ion source (DECRIS-2); new “warm” ECR ion source (DECRIS-2); new magnetic structure of the central region of U400MR; new magnetic structure of the central region of U400MR; second beam extraction system; second beam extraction system; new producing target for secondary beams; new producing target for secondary beams; new local radiation shielding; new local radiation shielding; superconducting 18-GHz primary beam ion source DECRIS-SC2 (under testing); superconducting 18-GHz primary beam ion source DECRIS-SC2 (under testing); “warm” 14-GHz secondary beam ion source (under testing). “warm” 14-GHz secondary beam ion source (under testing).

© 2003 By Default! A Free sample background from Slide 8 MODERNIZATION of the U400M CYCLOTRON  The main goals of modernization are achieved (the light ion beams intensity, the quality of beams, acceleration of “low” energy ions)  The critical point becomes the operation stability (now is ≈50%) caused by existing infrastructure  We can not modernize it we need to create the new one  The main goals of modernization are achieved (the light ion beams intensity, the quality of beams, acceleration of “low” energy ions)  The critical point becomes the operation stability (now is ≈50%) caused by existing infrastructure  We can not modernize it we need to create the new one

© 2003 By Default! A Free sample background from Slide 9 U400 CYCLOTRON U400 CYCLOTRON

© 2003 By Default! A Free sample background from Slide 10 5)Cyclotron average magnetic field level from 1.8 to 0.8 T 5)Cyclotron average magnetic field level from 1.8 to 0.8 T U400  U400R GOALS 2)Ion energy variation on the target with factor 5 1)Beam intensity of masses A ≈ 50 and energy ≈ 6 MeV/n up to 2.5 pμA 1)Beam intensity of masses A ≈ 50 and energy ≈ 6 MeV/n up to 2.5 pμA 3)Energy spread on the target up to )Beam emittance on the target – 10 π mm · mrad 6)New equipment The project is fully prepared!

© 2003 By Default! A Free sample background from Slide 11 T 1/2 = 320d / / / / / / / / / / / / / / / / / / Bk + 48 Ca Collaboration: FLNR (Dubna) – ORNL (Oak-Ridge) – LLNL (Livermore) – IAR (Dmitrovgrad) -Vanderbilt University (Nashville) T 1/2 = 320d 243 Am 242 Pu, 245 Cm 237 Np 244 Pu, 248 Cm 249 Cf Decay chains 48 Ca +

© 2003 By Default! A Free sample background from Slide 12 Expected decay chain of the isotopes of element 117 A. Sobiczewski 10/

© 2003 By Default! A Free sample background from Slide 13 Basic directions of research Heavy and superheavy nuclei Synthesis of superheavy elements Chemistry of new elements Fusion-fission and multi-nucleon transfer reactions Mass-spectrometry and nuclear spectroscopy of SH nuclei Heavy and superheavy nuclei Synthesis of superheavy elements Chemistry of new elements Fusion-fission and multi-nucleon transfer reactions Mass-spectrometry and nuclear spectroscopy of SH nuclei Light exotic nuclei Structure of light exotic nuclei Reactions with exotic nuclei Light exotic nuclei Structure of light exotic nuclei Reactions with exotic nuclei Next generation of experimental setups 1. Universal gas-filled separator of superheavy nuclei 2. Pre-separator for radiochemical and mass-spectrometric researches mass-spectrometric researches 3. Cryogenic detector for studying chemical properties of SHE 4. Gas catcher for collecting and production of single-charged ions 5. Wide aperture separator and spectrometer of nucleon transfer and fission reaction products 6. Radiochemical laboratory of II class 1. Universal gas-filled separator of superheavy nuclei 2. Pre-separator for radiochemical and mass-spectrometric researches mass-spectrometric researches 3. Cryogenic detector for studying chemical properties of SHE 4. Gas catcher for collecting and production of single-charged ions 5. Wide aperture separator and spectrometer of nucleon transfer and fission reaction products 6. Radiochemical laboratory of II class 7. Separator of radioactive light exotic nuclei 8. Spectrometer for studying nuclear reactions induced by RIBs 7. Separator of radioactive light exotic nuclei 8. Spectrometer for studying nuclear reactions induced by RIBs

© 2003 By Default! A Free sample background from Slide 14 Mass-spectrometer MASHA at the beam line of the cyclotron U-400M New beam line with low energy of the U-400M was built New beam line with low energy of the U-400M was built Mass-spectrometer mounted at the new beam line Mass-spectrometer mounted at the new beam line Hot catcher is ready Hot catcher is ready Focal plane detector system is ready Focal plane detector system is ready Start of test experiments – december of 2009 Start of test experiments – december of 2009 New beam line with low energy of the U-400M was built New beam line with low energy of the U-400M was built Mass-spectrometer mounted at the new beam line Mass-spectrometer mounted at the new beam line Hot catcher is ready Hot catcher is ready Focal plane detector system is ready Focal plane detector system is ready Start of test experiments – december of 2009 Start of test experiments – december of 2009 STATUS of the MASS-SPECTROMETER

© 2003 By Default! A Free sample background from Slide 15 FIRST EXPERIMENTS Mass identification of 112 и 114 elements synthesized at the reactions Mass identification of 112 и 114 elements synthesized at the reactions 242 Pu( 48 Ca,3n) (0.5 s) –> (4 s) Mass identification of 113 elements synthesized at the reaction Mass identification of 113 elements synthesized at the reaction 243 Am( 48 Ca,3n) (0.1 s) → (0.5 s) FIRST EXPERIMENTS Mass identification of 112 и 114 elements synthesized at the reactions Mass identification of 112 и 114 elements synthesized at the reactions 242 Pu( 48 Ca,3n) (0.5 s) –> (4 s) Mass identification of 113 elements synthesized at the reaction Mass identification of 113 elements synthesized at the reaction 243 Am( 48 Ca,3n) (0.1 s) → (0.5 s)

© 2003 By Default! A Free sample background from Slide 16 Experimental facility for very heavy nuclei research Main parameters of recoil separator Solid angle ~ 30 msr. Solid angle ~ 30 msr. Momentum acceptance – 10%. Momentum acceptance – 10%. Magnetic field – B max =0.3 T. Magnetic field – B max =0.3 T. Electric field – E max =10 kV/cm. Electric field – E max =10 kV/cm. Focal plane beam diameter – 8 cm. Focal plane beam diameter – 8 cm. Total length – 8 m. Total length – 8 m. From ECR SOURCE to GAS CATCHER

© 2003 By Default! A Free sample background from Slide 17 “VASSILISSA” based velocity filter for nuclear spectroscopy (joint JINR – IN2P3 project)

© 2003 By Default! A Free sample background from Slide 18 ACCULINNA-2 ACCULINNA COMBAS Acculinna−2 as ‘in−flight’ separator at U − 400M cyclotron DRIBs GS RF kicker operating principle: Beam species that have similar B  differ in TOF

© 2003 By Default! A Free sample background from Slide 19 STATUS of PROJECT: STATUS of PROJECT: 1) Letter of Intent (60 pages) 2) Complex calculation of ion−optical system STATUS of PROJECT: STATUS of PROJECT: 1) Letter of Intent (60 pages) 2) Complex calculation of ion−optical system

© 2003 By Default! A Free sample background from Slide 20 COMBAS Achromatic Mode Solid Angle AcceptanceΩ(msr)12 Momentum AcceptanceΔp/p(%)20 Factor Suppression%50-80 Dispersion Mode (MSP) Momentum Resolution2×10 -4 Length focal planecm150 E max /E min 5.2 Factor Suppression%0.1Primarybeam Energy primary Beam (MeV/amu) Secondary beam Energy secondary beam (MeV/amu) Intensity secondary beam (pps) 11 B 33 8 He x B 33 9 Li x N Li x х O Be x х Ne B x MSP COMBAS + MSP

© 2003 By Default! A Free sample background from Slide 21 NEW GAS-FILLED SEPARATOR

© 2003 By Default! A Free sample background from Slide 22

© 2003 By Default! A Free sample background from Slide 23 Pole diameter 4 m Magnetic field level 0.65÷1.15 T K factor 200 Weight 500 t A/Z range 4÷7 Injecting beam potential Up to 100 kV Dee voltage 2x130 kV Flat-top dee voltage 2x14 kV Power consumption 250 kW Beam turns separation 10 mm Radial beam bunch size 3 mm Efficiency of beam transferring 60% Total accelerating potential up to ~ 40 MV DC200. MAIN PARAMETERS

© 2003 By Default! A Free sample background from Slide 24 DC200 CYCLOTRON DESIGN

© 2003 By Default! A Free sample background from Slide 25 NEW RESOURCES AND RESEARCH OPPORTUNITIES

© 2003 By Default! A Free sample background from Slide 26 NEW EXPERIMENTAL HALL

© 2003 By Default! A Free sample background from Slide , ,020163,0 Total gain Existing cyclotron U400 & Gas-filled separator: Modernization of the cyclotron U400: New FLNR experimental hall New gas-filled recoil separator High intensity heavy ion cyclotron DC200 Financing (M$) and gain factors for SHE experiments Experiment 1 Experiment 2×2 Experiment 20 (10 fb) Technical requirements Project Building of set of equipments Manufacturing of systems, construction Launching Experiment 2

© 2003 By Default! A Free sample background from Slide 28 Completion of the Project DRIBs-III in the whole will not only increase by an order of magnitude the efficiency of experiments in the field of SHE synthesis, but will also allow substantially widen the spectrum of researches in the field of heavy and light exotic nuclei.

© 2003 By Default! A Free sample background from Slide 29 THANKS FOR YOUR ATTENTION!