1. Elisa Rapisarda, CERN, PH Division
CERN ISOLDE
The Isotopes Separator Online DEvice
Elisa Rapisarda, CERN, PH Division

2. The Nuclear Chart periodic stable b+ decay b- decay decay p decay82 50 20
126 28 8
system
periodic
stable
b+ decay
b- decay
decay
p decay
fission
predicted
Closed Shells
atoms: noble gas
nuclei: magic numbers 8

3. Production of Radioactive Ion beams
Nuclear Reaction: proton (1.4 GeV) + 238U (1012 atomen per seconde)
Purification:
Separation in mass number (A)
Separation in proton numbers/ element (Z): lasers
Transport of the ion beam (sometimes 1 atom per second) to the measurement setup
Acceleration in order to induce a new Nuclear Reaction
126 82 50 50 20 28 8 28 20 8

4. CERN
It all starts with a bottle of hydrogen …

5. CERN
… followed by the LINAC2 …

6. CERN
… and the 4 rings of the PSBooster

7. ISOLDE targets
Service Robots

8. ISOLDE target
In position

9. ISOLDE target
Proton on target or on the neutron converter

10. Research with Radioactive Beams
Why?
cosmology
Existence of the elements
Particle physics
(standaard model)
Astrophysics
0=>1028 cm Oerknal
1022 cm Sterrenstelsels
Quarks, leptonen <10-19 cm
1018 cm Supernova
Hadronen <10-13 cm
1011 cm De zon
Energy
Kernen <10-12 cm
Nuclear Physics
106 cm AMS in het klimaat
102 cm Geneeskunde
Gevangen atomen 10-8 cm
10-3 cm Gemerkte cel
Kanalisatie cm
Climate
atomic Physics v
Medicine
Solid State Physics
Biology

11. CERN ISOLDE Isotope Separator On-Line DEvice MEDICIS WITCH:
Laser spectroscopie
Collaps - CRIS
HIE-ISOLDE-acceleration (REX)
MINIBALL
WITCH:
fundamental interaction
Solid State Research
MEDICIS
IDS:
Decay study

12. Courtesy of T.E.Cocolios
-spectroscopy: Previuos Experimental Setup
Courtesy of T.E.Cocolios
Annular Si Si
pure 30 keV Tl beam
from RILIS+ISOLDE
Intensity = 104 pps
C-foils
20 mg/cm2
Si detectors Si
Annular Si ff a
30 keV beam
from ISOLDE
C-foil
Ge detector #1
Windmill Chamber

14. Possible Projects Installation of the apparatus started in Feb 2014
Beam line modification is going on;
AUTOCAD technical drawing of the new beam line and the experimental area
Beam optical simulations of the latest part of the beam line
(Switchyard + three quadrupoles) (MADX and Simion software)
Ongoing work in coming months:
Install detectors frame (hands on)
Install an automatic Refill system of Liquid Nitrogen for the Germanium detectors (hands on)
Test Germanium detectors (set up a simple 1-channel data acquition system)
Commission Tape station and ancillary detectors (hands on)
Team: you will join a small group of 3 to 5 persons (locally 2 Senior Post-Doc, 1 PhD student)
goal: be ready for first decay experiment end July 2014