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

3. 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
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
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

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

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

6. The 9 MV Tandem accelerator
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
The 9 MV Tandem accelerator
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
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

7. The 9 MV Tandem accelerator
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
The 9 MV Tandem accelerator
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

8. A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
The 9 MV Tandem
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.
Ion sources:
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
Available beams: p (2 – 18 MeV), a (3 – 27 MeV)
a broad range of heavy ions
Pulsing systems:
milliseconds: chopper
nanoseconds: chopper + buncher
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

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

10. RoSphere: The Romanian Array for g Spectroscopy in Heavy Ion Reactions
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
RoSphere: The Romanian Array for g Spectroscopy in Heavy Ion Reactions
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
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

11. RoSphere Two configurations available:
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
RoSphere
Two configurations available:
Mixed array with 15 50% HPGe detectors with BGO shields and LaBr3(Ce) scintillators
25 HPGe detectors array
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

12. RoSphere with LaBr3(Ce)
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
RoSphere with LaBr3(Ce)
July 2012
14 HPGe detectors
11 LaBr3(Ce) detectors
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

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

14. The first experiment with RoSphere:
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
The first experiment with RoSphere:
RDDS lifetime measurements in 120Te
C. Mihai et al.
110Pd(13C,3n) MeV
0.7 mg/cm2 110Pd
Plunger device
12 HPGe detectors mounted:
37◦ + 143◦
63◦ + 117◦
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

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

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

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

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

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

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

21. Other fields of research in the Nuclear Physics Department
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
Other fields of research in the Nuclear Physics Department
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
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

22. Required uncertainty level: ~5%
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
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

23. Spectroscopy of the A=34 decay chain at ISOLDE, CERN
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
Spectroscopy of the A=34 decay chain at
ISOLDE, CERN
Spokespersons: F. Negoita, S. Grévy
Structure – based on OSIRIS (Bucharest)
3 CLOVER detectors (Bucharest)
1 HPGe detector (90%) (CEA Arpajon)
5 LaBr3 detectors (4 Legnaro, 1 Bucharest)
~4p plastic scintilator (Bucharest)
3 neutron detectors (DEMON)
Fast Tape Station (Strasbourg)
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

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

25. Conclusions A few words about IFIN-HH, Bucharest, ROMANIA
A. Negret et al. - RoSphere: The germanium array at the Tandem accelerator of IFIN-HH
Conclusions
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
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

26. 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, 2012
Future project proposed for transnational access: CHANDA.
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

27. 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.
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013