Page 20 - IEAR1_60y_Book_of_Abstracts

10 Invited Talks

THE ISOLDE PROJECT AT CERN – FROM A SMALL EXPERIMENT TO A
1 Dec LARGE FACILITY
9:00am
H. Haas a
a
hhaas@cern.ch
Department of Physics, University of Aveiro, and EP Division, CERN, Switzerland

The concept of Isotope Separation On Line (ISOL) to produce beams of pure
radioisotopes combines a fast chemical separation, in the simplest cases just evapo-
ration, to select a certain element from the reaction products produced in a massive
target, with a following physical separation of isotopes in a mass spectrometer. It
was first tested with gaseous fission products by thermal neutrons from a reactor
in Kopenhagen and 1967 installed at the synchrocyclotron (SC) of CERN, using
600MeV protons. After an intensity upgrade of the SC in 1972 the ISOLDE2 facility
quickly became a widely applied source of low energy (60keV) radioactive isotope
beams, not only for nuclear spectroscopy, but also for atomic, solid-state, biological
and medical research. It was in 1987 supplemented with a high-resolution separator
having superior properties. Following the shutdown of the SC in 1990 the installations
were moved to the CERN Booster accelerator, where 1.4GeV protons are available.
It now not only supplies 60keV beams of radioactive isotopes for more than 70 ele-
ments, but also accelerated beams of an energy up to 6MeV/u for nuclear reaction
studies. The presentation will be supplemented by some recent highlight results from
various fields.

1 Dec MATERIAL SCIENCE RESEARCH AT ISOLDE-CERN
10:30am
J. Schell a
a juliana.schell@cern.ch
CERN, Geneva, Switzerland
Institute for Materials Science and Center for Nanointegration, Essen, Germany

Solid State Physics research at ISOLDE has been running since the mid-1970s and
accounts for about 10-15% of the overall physics programme. ISOLDE is the world
flagship for the on-line production of exotic radioactive isotopes, with high yields,
high elemental selectivity and isotopic purity. Consequently, it hosts a panoply of
state-of-the-art nuclear techniques which apply nuclear methods to research on life
sciences, material science and bio-chemical physics. The ease of detecting radioac-
tivity - < 1 ppm concentrations - is one of the features which distinguishes the use of
radioisotopes for materials science research. The manner in which nuclear momenta
of excited nuclear states interact with their local electronic and magnetic environ-
ment, or how charged emitted particles interact with the crystalline lattices allow
the determination of the location, its action and the role of the selected impurity
element at the nanoscopic state. ISOLDE offers an unrivalled range of available
radioactive elements and this is attracting an increasing user community in the field
of nuclear solid state physics research and brings together a community of materials