Oak Ridge National Laboratory

Physics Division

Physics Division Seminars

Physics Division Seminars bring us speakers on a variety of physics related subjects. Usually these are held in the Building 6008 large Conference Room, at 3:00 pm on the chosen day, but times and locations may vary. For more information, contact our seminar chairman,

Alfredo Galindo-Uribarri
Tel (Office): (865) 574-6124  (FAX): (865) 574-1268

Fri., June 13, 2014, at 11:00 AM - 12:00 Noon (refreshments served at 10:40 AM)

Overview of ISOL Facility for RISP

Hyung-Joo Woo, ISOL Team, RISP, Institute for Basic Science, SEOUL, South Korea
ORNL, Bldg. 6008 Large Conference Room

The key feature of ISOL facility is to provide high intensity and high-quality beams of neutron-rich isotopes with mass in the range 80-160 by means of a 70-MeV proton beam directly impinging on uranium carbide thin-disc targets to perform forefront researches in nuclear structure, nuclear astrophysics, reaction dynamics and interdisciplinary fields like medical, biological and material sciences. The technical design of the 10-kW and 35-kW direct fission targets with in-target fission rate of up to 1014 fissions/s has been performed, and for the development of ISOL fission target chemistry initial effort has been given to the production of porous lantanum carbide (LaCx) disc as a benchmark for the final production of porous UCx disc. To produce the large part of the possible beams, three classes of ion source are under development at RISP: the surface ion source, the plasma ion source (FEBIAD), the laser ion source, and the prototype fabrication is in progress. An engineering design and fabrication of ISOL target/ion source front-end system is also in progress, and a prototype will be used as off-line test facility in front of the pre-separator. The technical designs of other basic elements in ISOL facility such as the RF-cooler, the high-resolution mass separator, the A/q separator have been finished, and the results are introduced with the following plans.

Contact: Alfredo Galindo-Uribarri, (865) 574-6124