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RIA Experimental Working Groups
Updated 9-20-05
Workshops on various aspects of the RIA facility have been held and as we progress towards RIA they will become more frequent. Two workshops that have been held:
Workshop on the Experimental Equipment for RIA
Oak Ridge, Tennessee
March 18-22, 2003
RIA Facility Workshop
East Lansing, Michigan
March 9-13, 2004
Following these workshops, groups with specific interests have been formed with the purpose of following in some detail a certain aspect of the RIA facility. These groups are viewed by the RIA Steering Committee as a very important component of planning for RIA. These groups will be comprised of individuals who share an interest in a specific aspect of RIA. They are the experts and advocates for that particular aspect. This type of input is invaluable in planning for the best possible facility.
The RIA steering committee encourages the formation of experimental working groups. This portion of the RIA website has been allocated to listing the various groups that are formed and linking from the RIA website to the working groups' websites. Each group is responsible for maintaining their own website. To be listed, the group should provide the following information to the Site Contact:
1) Name of Working Group
2) Up to four sentences describing the purpose
3) Link to website
Current RIA Experimental Working Groups
ARIA – Astrophysics at RIA
The ARIA Working Group is focused on designing a suite of experimental instruments to carry out world-class nuclear astrophysics measurements at the low-energy hall of RIA. We will discuss the physics experiments driving these equipment needs, specify the facility infrastructure required for these experiments and instruments, and advocate these designs in future plans for the RIA facility.
Website: http://www.ariaweb.org
Decay spectroscopy At RIA: Into Terra Incognita (DARITI)The DARITI Working Group is a collaboration of RIA users interested in the studies of nuclear structure and nuclear astrophysics using decay spectroscopy methods. Working group members will identify physics goals to be reached via decay studies at RIA, related needs for the facility infrastructure and experimental equipment development, with a particular emphasis on an early phase of RIA operation. Members will also promote the universal and modular design of detector systems optimizing the research capabilities at the RIA end-stations, from the low-energy ISOL beams to the relativistic fragmentation products, and will help to coordinate the research and development efforts.
Website: http://groups.nscl.msu.edu/dariti/
GRETINA/GRETA Users GroupExperiments at the RIA facility will make extensive use of sophisticated gamma-ray detection. The requirements of very high efficiency, together with very high resolution at large recoil velocities, can currently be met only by the development of gamma-ray tracking arrays using close-packed Ge crystals. The GRETINA/GRETA Users Community is an organization of scientists interested in the development, and eventual use, of GRETINA (and later GRETA), a future U.S. National Gamma-ray Tracking Facility. The membership of the GRETINA/GRETA Users Community is open to all practicing scientists interested in any or all aspects of gamma-ray tracking and GRETINA/GRETA.
Website: http://radware.phy.ornl.gov/greta/join.html
RIA Separator Working Group for the E/A=10MeV Experimental AreaThis group is exploring the design of several separators to be used as major instruments for nuclear structure and nuclear reaction studies with re-accelerated rare isotopes from RIA at energies E/A~10 MeV/nucleon.The list of separators under consideration includes a recoil mass separator, a gas filled device, an RF-driven separator and a large acceptance spectrograph. Subgroups are working on the design of each of these devices.
Web page: http://mare.tamu.edu/ria/separators.html
RIA Spectrograph Working GroupThe working group focuses on designing a magnetic spectrograph for experiments with fast beams at RIA. This includes considerations on the infrastructure for effective running of the device, delineation of the requirements for the spectrograph bases on the likely experimental program and development of the physics program with the spectrograph. The working group also serves as the promoter and communication point for experiments with the spectrograph for the RIA community.
Website: http://www.nscl.msu.edu/~zegers/RIA/spectrometer.html
SHIRIA – Studies of Heavy-Ion Reactions at RIAThe working group represents the experimental heavy-ion reaction community. It intends to: explore opportunities for mechanistic research using secondary RIA beams with emphasis on isospin-related reaction dynamics and nuclear decay; devise general principles of a new research strategy in mechanistic isospin physics; investigate the interface between isospin dependent nuclear structure and reaction mechanism; and establish requirements on beams, experimental areas, detection equipment, and other infrastructure related to the anticipated research.