Negret - IAEA Nuclear Data Services

Report
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
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
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
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
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
1 MV Tandetron
9 MV Tandem
NUSTAR
3 MV Tandetron
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013
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
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
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
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
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
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 10-20 LaBr3(Ce) scintillators
•25 HPGe detectors array
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013
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
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
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) 120Te
@50 MeV
0.7 mg/cm2 110Pd
Plunger device
12 HPGe detectors mounted:
5 @ 37◦ + 5 @ 143◦
1 @ 63◦ + 1 @ 117◦
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013
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.
Stopper support
Target support
Sliding bearings
inchworm
micrometer
L=814 mm
piezocrystal
Plunger device build after the widely used Cologne design (A. Dewald)
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013
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
VERY PRELIMINARY RESULTS
C. Mihai et al.
2+ 560 keV τ=12.2(4) ps
4+ 1161 keV τ=4.8(4) ps
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013
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)
197Au(α,2n)199Tl
@ 24 MeV
332-369 keV coincidence
“Prompt” coincidence
367-381 keV coincidence
Centroid shift
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013
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
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.
100Mo(α,n)103Ru
Ea = 14-18 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
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
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
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
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
Measurements @ 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
Spectroscopy of the A=34 decay chain at
ISOLDE, CERN
Spokespersons: F. Negoita, S. Grévy
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•
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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
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
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
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
www.erinda.org
Future project proposed for transnational access: CHANDA.
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.
NSDD Meeting, KFAS, Safat, Kuwait, January 27-31, 2013

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