Download Organisation of GANIL prospectives

Core Group: Nicolas Alamanos, Giacomo de Angelis, Bertram Blank, Angela Bracco, Peter Butler, Fadi
Ibrahim, Bill Lynch, Tohru Motobayashi, Gerda Neyens, Chistina Trautmann, Dominique Vernhet, Cristina
Volpe, Ani Aprahamian, Muhsin Harakeh, Philippe Chomaz, Patricia Roussel Chomaz, Sydney Gales, and
Marek Lewitowicz
Cluster coodinators: Stéphane Grévy, Abdou Chbihi, Bruno Piquet, Riccardo Raabe, Gilles de France,
Maurycy Rejmund, Jean-Charles Thomas, Navin Alahari, Emmanuel Balanzat
Forward Look Forum (chaired by Bertram Blank)
Technical Advisory Board (chaired by Frédéric Chautard)
April 16
June 10
June 23
August 29
October 23-24
Nov 21
Dec 4
Jan 29
Feb 16
March 2
March 9
Core Group
Open Meeting
Core Group
Core Group
Open Meeting
Core Group
meeting on fragmentation beams
meeting on separator/spectrometer
Core Group + cluster cordinators
Core Group + SC + SP2-SAC
Open Meeting
Paris
Giens
Paris
Paris
Caen
Paris
Caen
Caen
Paris
Caen
Caen
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Core Group for Prospective Study GANIL 2015
GANIL presently offers unique opportunities in
nuclear physics and many other fields:
by providing low-energy stable beams,
fragmentation beams and re-accelerated
radioactive species;
through the availability of a wide range of
state- of-the-art spectrometers and
instrumentation
With the construction of SPIRAL2 over the next
few years, GANIL is in a good position to retain its
world-leading capability
It faces strong competition from upgraded ISOL
and fragmentation facilities
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Prospects for GANIL 2015
Underlying theme of report
Existing instrumentation – spectrometers,
separators and detectors - should accommodate
the intense neutron-rich beams from SPIRAL2
The repertoire of radionuclides from SPIRAL1
should also be enlarged
In addition to LINAG, the present GANIL facility
has a niche energy regime (~ 50 MeV/u) for
intermediate energy physics
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
IN 2015 GANIL should prepare to be the worldleading ISOL facility
SPIRAL-1, SIRa I
The main limitation of SPIRAL1 is the small
number of elements available; insertion of new
sources is difficult in the present configuration
The modifications needed for the insertion of a
charge breeder should be included in the safety
file, with sufficient human resources in order to
achieve this major improvement
Laser ion sources at SPIRAL1 should be included
in the file but their construction is second priority
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
A large and interesting physics programme has
been achieved using SPIRAL1
SPIRAL-1, SIRa II
“Second irradiation station is important for both
SPIRAL1 and SPIRAL2
Could use existing target station D2 (SIRa and
SPIRAL1 Cave)”
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Note from TAB report:
Present limitations on permitted beams for LIRAT
have to be overcome, particularly in the view of
the use of SPIRAL1 for providing radioactive ions
for DESIR.
Authorisation for extracting all SPIRAL1 beams for
LIRAT should be obtained.
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
LIRAT
SISSI should not be replaced by an identical
SISSI2:
not internationally competitive in 2015
concentrate on SPIRAL2
A detailed study should be initiated that considers
upgrading the LISE2000 beam line with a velocity
filter and a magnetic spectrometer
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Fragmentation studies: LISE and SISSI
The community has enthusiastically endorsed the
proposal for a new 100-150 MeV/nucleon postaccelerator that will allow fragmentation of
neutron-rich fission products.
This is outside of the scope of GANIL 2015
Nevertheless, GANIL should launch a preliminary,
conceptual design study of a new post-accelerator
that does not commit significant resources.
This study should take
advantage of related
activity carried out
within the EURISOL
Design Study
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Fragmentation studies: the future
It is essential that there is provision of
spectrometers/ separators for the study of
reaction products, induced by SPIRAL2 beams,
emitted at or close to the beam direction
Detailed studies to allow the high intensity beams
of SPIRAL2 into specifically identified caves have
to be carried out, and for that purpose a working
group should be nominated
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Zero-degree studies I
The velocity filter of LISE separator has been
extensively used for fusion-evaporation reactions:
implies a modification of the velocity filter
- man-power intensive and not compatible
with high beam intensities
The
detailed
study
that
considers
the
enhancement of LISE for fragmentation studies
should incorporate a parallel study for use for
zero-degree operation with high-intensity RIB
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Zero-degree studies II: LISE
Zero-degree studies III: SPEG
In future SPEG will use beams from SPIRAL1,
SPIRAL2 for measurements of inelastic and
transfer reactions in inverse kinematics (and
stable beams for material science)
all the changes to the focal plane detector setup,
required to perform reaction measurements with
beams from SPIRAL1 and SPIRAL2 should be
implemented
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
The long-term usefulness of this instrument arises
from its excellent performance and its versatility
for different types of measurements
VAMOS has been successfully used for:
(i) fusion reactions using stable or RIB beams
(ii) transfer reactions in inverse kinematics using RIB
(iii) multi-nucleon transfer using heavy stable beams
VAMOS has to be ready for zero-degree operation
(fusion evaporation and inverse-kinematics transfer)
studies using intense SPIRAL2 beams
Improvements to the existing Wien filter and a detailed
study of a beam dump with a separate permanent beamline are required
Should accommodate
large angle operation
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Zero-degree studies IV: VAMOS
High-resolution -ray spectroscopy with a Ge
detector array is a very important part of the
scientific programme of GANIL and SPIRAL2.
The electronics should be renewed, funded by the
international collaboration. As second priority the
available number of Ge detectors should be
increased.
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
EXOGAM
The availability of a 4 detector with excellent
isotopic and energy resolution enables sensitive
studies of the isospin dependence of nuclear
matter and its equation of state.
It is important to complete the PHASE I - PHASE IV
FAZIA implementation plans. These require the
commitment of the international collaboration that
will construct the device
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
INDRA/FAZIA
GANIL provides energetic heavy ions and facilities
for experiments in the fields of atomic physics,
materials and condensed matter research as well
as radio-biology and radio–chemistry.
For material sciences: chopper relocation and
intensity modulation
For radiochemistry: reliable operation of pulse
suppression
For radiobiology: improving the beam stability
For atomic physics: installing an analyzing magnet
GANIL management is encouraged to keep
allocating beam access to industrial users and to
study the possibility of providing cocktail beams
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
INTERDISCIPLINARY / INDUSTRIAL
PHYSICS
Energy
Intensity
Beams
Instrument
Collective modes
50 MeV/u
>10**6
38-50Ca, 56-70Ni, 96,98,100Zr
LISE, EXOGAM, …
Deformation
properties
3-6 MeV/u
>10**6
RIB + stable
EXOGAM, LISE, VAMOS, …
SHE
5 MeV/u
>10**10
90-94Kr,
LISE, VAMOS, EXOGAM,
(S3)
High Spin
5 MeV/u
>10**9
92,94Kr, 132Sn, 140Xe, 152,154Nd
EXOGAM, VAMOS,…
Astrophysical
reactions
1-3.5 MeV/u
>10**9
74,76Kr, 108,110Sn, 120,122Xe,
stable
beams, neutron-rich 80-140, 170-200
LISE, EXOGAM
Ground state,
astrophysics
low energy
low
intensity
n-rich Be, n-rich close to N=50, N=82,
close to p drip-line
SIRa, LIRAT, (DESIR)
Alpha clustering
10 - 40
MeV/u
>10**4
36,40Ar
EXOGAM, VAMOS, SPEG, …
Quasi-molecular
4 - 30 MeV/u
>10**5
n-rich Be, C, O, Ne, Mg, Si
LISE, …
Neutron pairing
6-10 MeV/u
>10**4
132,134,136Sn, 144Xe, 6He
VAMOS, SPEG, …
p-n pairing
4-130 MeV/u
>10**4
48Cr, 56Ni, 72Kr, 80Zr
LISE, VAMOS, SPEG, …
Shell evolution
> 8 MeV/u
>10**4
Neutron-rich C isotopes, 56Ni, 80Zn,
130Cd, 132Sn
VAMOS, SPEG, EXOGAM, …
Weakly-bound
systems
5-20 MeVu
>10**4
132, 134Sn, 134Te, 8Li, 14Be, 16-18C, 22-23O,
VAMOS, SPEG, EXOGAM, …
also stable Si, S, Ar, Ca
or radioactive N=Z nuclei
27-28Ne, 30Na, 32-34Mg, 40S, 46-48Ar, 8486Se, 88-94Kr
Fission, fusion
< 5 MeV/u
>10**8
10,15C, 14O, 132Sn, 238U, 64Ni, 16O
VAMOS, EXOGAM, (S3)
Nuclear
thermodynamics
10-50 MeV/u
> 10**6
106,112,120,132,136Sn, 56,64,74Ni, 78Zn, 94Kr,
VAMOS, INDRA, …
96Sr, 72Kr, 114-145Xe, 122Cd,
90Kr,40,48Ca,58,64,74Ni
Fundamental
low energy
> 10**6
8He, 18,19Ne, 34,35Ar,100Mo
SIRa, EXOGAM, (DESIR),...
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Beams (Forum and SPIRAL2 LoI)
Next steps
Submission to Scientific Council and SPIRAL2
SAC
Council meets in June
Peter Butler
GANIL 2015 – Open Meeting March 9, 2009
Final meeting of Core Group 23rd March