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RoSphere: The germanium array at the Tandem accelerator of IFIN-HH A.Negret, D. Bucurescu, G. Cata-Danil, D. Deleanu, D. Filipescu, D.G. Ghita, I. Gheorghe,

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Presentation on theme: "RoSphere: The germanium array at the Tandem accelerator of IFIN-HH A.Negret, D. Bucurescu, G. Cata-Danil, D. Deleanu, D. Filipescu, D.G. Ghita, I. Gheorghe,"— Presentation transcript:

1 RoSphere: The germanium array at the Tandem accelerator of IFIN-HH A.Negret, D. Bucurescu, G. Cata-Danil, D. Deleanu, D. Filipescu, D.G. Ghita, I. Gheorghe, T. Glodariu, R. Lica, N. Marginean, R. Marginean, A. Olacel, S. Pascu, T. Sava, L. Stroe, G. Suliman, R. Suvaiala, S. Toma, and N.V. Zamfir Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, ROMANIA NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

2 Summary NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A few words about IFIN-HH, Bucharest, ROMANIA The 9 MV Tandem accelerator RoSphere – Romanian Array for  Spectroscopy in Heavy Ion Reactions Recent measurements at RoSphere Other fields of research in the Nuclear Physics Department Conclusions A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH

3 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A few words about IFIN-HH, Bucharest, ROMANIA The 9 MV Tandem accelerator RoSphere Recent measurements at RoSphere Other fields of research in the Nuclear Physics Department Conclusions A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH A few words about The National Institute of Physics and Nuclear Engineering

4 IFIN-HH, Bucharest-Magurele, Romania - Location NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH

5 IFIN-HH – Main facilities and departments NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Cyclotron Iradiation Facility Hadronic Physics Source Production Reactor 9 MV Tandem 3 MV Tandetron NUSTAR 1 MV Tandetron Administration Life & Environment

6 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A few words about IFIN-HH, Bucharest, ROMANIA The 9 MV Tandem accelerator RoSphere Recent measurements at RoSphere Other fields of research in the Nuclear Physics Department Conclusions A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH The 9 MV Tandem accelerator

7 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH

8 Built by High Voltage Engineering Corporation (HVEC) in 1973, upgraded from the original terminal voltage of 7.5 MV (FN machine) to 9 MV. Major upgrades during the last years. The 9 MV Tandem NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Ion sources: Available beams: p (2 – 18 MeV),  (3 – 27 MeV) a broad range of heavy ions Pulsing systems: SNICSII sputter negative ion source source for negative helium ions MC-SNICSII sputter negative ion source dedicated for AMS HV generator: pelletron system; Voltage: 9 MV milliseconds: chopper nanoseconds: chopper + buncher

9 Experimental area NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH 2 experimental halls 7 beam lines

10 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A few words about IFIN-HH, Bucharest, ROMANIA The 9 MV Tandem accelerator RoSphere Recent measurements at RoSphere Other fields of research in the Nuclear Physics Department Conclusions A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH RoSphere: The Romanian Array for  Spectroscopy in Heavy Ion Reactions

11 RoSphere NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Two configurations available: Mixed array with 15 50% HPGe detectors with BGO shields and LaBr 3 (Ce) scintillators 25 HPGe detectors array

12 RoSphere with LaBr 3 (Ce) NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH 14 HPGe detectors 11 LaBr 3 (Ce) detectors July 2012

13 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A few words about IFIN-HH, Bucharest, ROMANIA The 9 MV Tandem accelerator RoSphere Recent measurements at RoSphere Other fields of research in the Nuclear Physics Department Conclusions A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Recent measurements at RoSphere

14 The first experiment with RoSphere: RDDS lifetime measurements in 120 Te NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH 110 Pd( 13 C,3n) 120 MeV 0.7 mg/cm Pd Plunger device 12 HPGe detectors mounted: 37 ◦ ◦ 63 ◦ ◦ C. Mihai et al.

15 The first experiment with RoSphere: RDDS lifetime measurements in 120 Te NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Target supportStopper support micrometer Sliding bearings inchworm piezocrystal L=814 mm Plunger device build after the widely used Cologne design (A. Dewald) C. Mihai et al.

16 The first experiment with RoSphere: RDDS lifetime measurements in 120 Te NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH keV τ=12.2(4) ps keV τ=4.8(4) ps VERY PRELIMINARY RESULTS C. Mihai et al.

17 In-beam Fast Timing measurements: 199 Tl NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH 197 Au(α,2n) MeV N.Mărginean et al., Eur. Phys. J. A46, 329 (2010) keV coincidence “Prompt” coincidence keV coincidence Centroid shift

18 In-beam Fast Timing measurements in 99,101,103 Ru NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH 96 Mo(α,n) 99 Ru 98 Mo(α,n) 101 Ru 100 Mo(α,n) 103 Ru S. Lalkovski et al. 96,98 Ru have vibrational behaviour, while the mid-shell Ru isotopes are triaxialy deformed. Thus, 99,101,103 Ru isotopes are placed in the region where the onset of deformation is expected to occur. E  = MeV Experimental purpose: measurement of the half lives of positive parity low-lying states and 15/2- states in 99,101,103 Ru

19 In-beam Fast Timing measurements in 99,101,103 Ru NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH S. Lalkovski et al.

20 In-beam Fast Timing measurements in 99,101,103 Ru NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH S. Lalkovski et al.

21 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A few words about IFIN-HH, Bucharest, ROMANIA The 9 MV Tandem accelerator RoSphere Recent measurements at RoSphere Other fields of research in the Nuclear Physics Department Conclusions A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Other fields of research in the Nuclear Physics Department

22 Nuclear physics measurements for energetics: The development of Generation IV Nuclear Reactors Precise Neutron Inelastic Cross Section GELINA, EC-JRC-IRMM, Belgium A. Negret, C. Borcea, Ph. Dessagne, M. Kerveno, A.J.M. Plompen Required uncertainty level: ~5% NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH

23 Spectroscopy of the A=34 decay chain at ISOLDE, CERN NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Spokespersons: F. Negoita, S. Grévy Structure – based on OSIRIS (Bucharest) 3 CLOVER detectors (Bucharest) 1 HPGe detector (90%) (CEA Arpajon) 5 LaBr 3 detectors (4 Legnaro, 1 Bucharest) ~4  plastic scintilator (Bucharest) 3 neutron detectors (DEMON) Fast Tape Station (Strasbourg)

24 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Large European Projects

25 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A few words about IFIN-HH, Bucharest, ROMANIA The 9 MV Tandem accelerator RoSphere Recent measurements at RoSphere Other fields of research in the Nuclear Physics Department Conclusions A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Conclusions

26 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Advertisement The ERINDA consortium groups 13 partners, equipped with nuclear data research infrastructures. The project sponsors the transnational access for experiments performed at any of the 13 facilities. The TANDEM accelerator of IFIN-HH is part of ERINDA. The last deadline for proposals: September 30, Future project proposed for transnational access: CHANDA.

27 NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013 A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH Conclusions The 9 MV Tandem accelerator in Bucharest delivers a large variety of stable beams. The facility was completely modernized during the last years. A large variety of detecting devices are available: The RoSphere array with up to 25 HPGe detectors and/or LaBr3 detectors, Clover detectors, A plunger device, Neutron detectors. We are particularly well equipped for nuclear lifetime measurements. Financial support is available for certain type of measurements. Two PAC meetings /year; usually the requested beam time represents 150%-200% of the available beam time.


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