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Prof.
Ani Aprahamian
Email: aapraham@nd.edu
Most of the elements heavier than Iron (Fe) are thought to be created via
rapid and slow neutron capture reactions in various astrophysical
scenarios. In order to understand these nucleosynthesis processes and to
be able to model them, it is crucial that we know something about the
structure of nuclei involved in these reactions. Many of these nuclei are
far from stability and presently unknown in the laboratory. This project
involves the measurement of some neutron rich nuclei in the medium mass
region of A=80. The project involves an experiment and if time allows some
modelling of the r-process with regards to the resulting elemental
abundances to study the impact of the new values on this nucleosynthesis
process.
Prof.
Phillipe Collon
Email: pcollon@nd.edu
This project involves a complete upgrade of the electrical and cooling
systems of the vacuum pumps, gauges and controllers as well as all control
and power systems of the spectrograph and magnets. Improvements will
also be made on the beam line.
A new detector (ionization chamber and position sensitive PPAC) is also
being developed, in collaboration with Argonne National Laboratory, for
the focal plane of the spectrograph. Students will be involved in all parts of
this project.
Prof. Umesh
Garg
Email: garg@nd.edu
Nuclear Incompressibility is one of the three fundamental quantities
characterizing the equation of state of infinite nuclear matter
and the only one which has not been measured in a direct experiment.
It is critical to our understanding of a wide variety of nuclear
and astrophysical phenomena including neutron stars, stellar collapse,
supernovae, and collective flow in high-energy heavy-ion collisions.
We measure nuclear incompressibility directly by observing the compressional-mode
vibrations of atomic nuclei. These experiments are carried out at
the Research Center of Nuclear Physics at Osaka University, Osaka,
Japan. The REU student will help with data analysis and, possibly,
travel to Osaka to help with setting-up the experiment and data
taking.
Dr. Larry Lamm
Email: llamm@nd.edu
We are currently in the process of renovating our 100 cm broad range
Browne-Buechner spectrograph for use in a series of AMS (accelerator
mass spectroscopy) experiments, with operations anticipated in gas-filled
mode. However, I would also like to recover standard operation capabilities
for this system, by building and testing a variety of position sensitive
particle detectors specifically designed to mount on the focal surface
of the spectrograph. This project would involve significant "hands-on"
work in every aspect of the building and testing of these specialized
position sensitive particle detectors, as well as significant participation
in the commissioning experiments that would utilize these detectors
after their installation within the spectrograph. In addition, the
student working on this project would be expected to participate
in the development of the electronics to process the signals from
the detectors and to gain a working knowledge of the use of our
local data acquisition system.
Prof. Xiaodong Tang
Email: x.tang@nd.edu
Three projects are available for undergraduate students. 1) Development of Ionization chamber. This project includes development of gas handling system, construction and test of ionization chamber with radioactive source. 2) Development of digital processing of the signal from nuclear radiation detectors. The detail information from the detectors, captured by a high speed waveform recorder, provides more possibilities and flexibilities to the nuclear physicists compared to traditional analog modules. In this project, the student will work on data taking, DSP programming and neural network. 3) Set up running rabbit system for decay measurement.
Prof.
Michael Wiescher
Email: mwiesche@nd.edu
The student will participate in the simulation of stellar fusion
reactions at the Notre Dame windowless gas target system. The experiments
will focus on the study of the low energy reaction contributions
in 20Ne(p,g), a reaction which is important for explosive
nucleosynthesis in Ne-novae. The measurements will be performed
at the Notre Dame KN accelerator using Ge-clover detectors for measuring
the released gamma-radiation.
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