KTH
/ Physics /
Nuclear /
Research
Research Projects
Our group is engaged in a wide range of different research topics. Below you will find a short presentation of some of the various topics we are involved in, with links for further information.
Experimental Nuclear Physics
Theoretical Nuclear Physics
Nuclear Imaging
Detector Development and Gamma-ray Tracking
Experimental Nuclear Physics
Nuclear Spectroscopy using Multi-detector Systems
Atomic nuclei at high excitation energy with a high angular momentum in extreme configurations of isospin and deformation may be
produced in heavy ion reactions at accelerator laboratories. The internal structure of such nuclei are today studied with large
detector arrays for high-resolution gamma-rays, neutron and charged particle spectroscopy. Examples of international accelerator
laboratories where we are involved in heavy-ion collision experiments are listed below.
University of Jyväskylä, Finland
GANIL, France
GSI, Germany
LNL, Italy
RIKEN, Japan
Argonne National Laboratory, USA
Contact Prof. Bo Cederwall, for more information.
Theoretical Nuclear Physics
On-going projects on the theoretical side are, for example,
calculations on various properties of nuclei using different nuclear
structure models and development of nuclear models using experimental
data. We also investigate the effect of nuclear structure on alpha and
proton decay and study reaction theories using a semi-classical
approach to solve the nuclear many-body problem.
Contact Prof. Ramon Wyss, for more information.
Nuclear Imaging
Compton Imaging
The aim of this project is to develop a detector system that can create an
image in gamma-rays that has a 4Pi sensitivity and requires no
collimators. Physics of the interactions between gamma-rays and matter,
namely of the Compton scattering process, make it possible to reconstruct
the direction of the incoming photons, and thus create an image, provided
that the scattering paths of gamma rays can be determined. We are applying
this idea on a single planar pixelated Germanium detector and using pulse
shape analysis methods to achieve the necessary position resolution.
Contact Prof. Bo Cederwall, for more information.
Detector Development and Gamma-Ray Tracking
AGATA
The AGATA (Advanced Gamma Tracking Array) project is a European
collaboration aimed at the construction of a new-generation 4Pi gamma
spectrometer for nuclear physics applications. The array is designed for a
great efficiency at high gamma-ray multiplicities and high Doppler shifts.
AGATA will consist of 180 hexagonal 36-fold segmented large-volume HPGe
detectors covering 80% of the solid angle. In this array, the need for
Compton suppression detectors is eliminated through the use of pulse shape
analysis and gamma-ray tracking. The first detectors have been
manufactured and are currently being tested in various European labs.
Links to the AGATA project:
GSI - Darmstadt
LNL - Padova
TU - Munich
University of Liverpool
Contact Prof. Bo Cederwall, for more information.
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