338 research outputs found
Charged-particle flow measured with the KRATTA detector in the ASY-EOS experiment
The flow of light charged particles from the Au+Au reaction at 400 AMeV measured with the KRATTA detector is presented. The results are compared with the FOPI data
Isoscaling and the symmetry energy in spectator fragmentation
Isoscaling and its relation to the symmetry energy in the fragmentation of
excited residues produced at relativistic energies were studied in two
experiments conducted at the GSI laboratory. The INDRA multidetector has been
used to detect and identify light particles and fragments with Z <= 5 in
collisions of 12C on 112,124Sn at incident energies of 300 and 600 MeV per
nucleon. Isoscaling is observed, and the deduced parameters decrease with
increasing centrality. Symmetry term coefficients, deduced within the
statistical description of isotopic scaling, are near gamma = 25 MeV for
peripheral and gamma < 15 MeV for central collisions.
In a very recent experiment with the ALADIN spectrometer, the possibility of
using secondary beams for reaction studies at relativistic energies has been
explored. Beams of 107Sn, 124Sn, 124La, and 197Au were used to investigate the
mass and isospin dependence of projectile fragmentation at 600 MeV per nucleon.
The decrease of the isoscaling parameters is confirmed and extended over the
full fragmentation regime covered in these reactions.Comment: Proceedings of the IWM2005, Catania, Italy, Nov 200
Calculations of Isotopic IMF Yields in the 4-He + 116,124-Sn Reaction
This research was sponsored by the National Science Foundation Grant NSF PHY-931478
Isotopic Yields of Intermediate-Mass Fragments Emitted in E/A = 50 MeV 4-He + 116,124-Sn Reactions
This research was sponsored by the National Science Foundation Grant NSF PHY-931478
KATANA - a charge-sensitive triggering system for the SRIT experiment
KATANA - the Krakow Array for Triggering with Amplitude discrimiNAtion - has
been built and used as a trigger and veto detector for the SRIT TPC at
RIKEN. Its construction allows operating in magnetic field and providing fast
response for ionizing particles, giving the approximate forward multiplicity
and charge information. Depending on this information, trigger and veto signals
are generated. The article presents performance of the detector and details of
its construction. A simple phenomenological parametrization of the number of
emitted scintillation photons in plastic scintillator is proposed. The effect
of the light output deterioration in the plastic scintillator due to the
in-beam irradiation is discussed.Comment: 14 pages, 11 figure
ISiS: The Indiana Silicon Sphere
This research was sponsored by the National Science Foundation Grant NSF PHY-931478
KATANA : a charge-sensitive trigger/veto array for the RIT TPC
KATANA — the Krak´ow Array for Triggering with Amplitude discrimiNAtion, has been built and used as a trigger and veto detector for the SπRIT TPC at RIKEN. Its construction allows operating in magnetic field, providing fast response for ionizing particles and giving the approximate multiplicity and charge information on forward emitted reaction products. Depending on this information, trigger and veto signals are generated. Multi-Pixel Photon Counters were used as light sensors for plastic scintillators. Custom designed front-end and peripheral electronics will be presented as well
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