s'authentifier
version française rss feed
HAL : in2p3-00164739, version 1

Fiche concise  Récupérer au format
MISTIC: Radiation hard ECRIS
Labrecque F., Lecesne N., Bricault P.
in Nuclear instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - XVth International Conference on Electromagnetic Isotope Separators and Techniques related to their Applications (EMIS2007), Deauville : France (2007) - http://hal.in2p3.fr/in2p3-00164739
Physique/Physique/Physique des accélérateurs
MISTIC: Radiation hard ECRIS
F. Labrecque1, N. Lecesne2, P. Bricault1
1 :  TRIUMF
TRIUMF
4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3
Canada
2 :  GANIL - Grand Accélérateur National d'Ions Lourds
http://www.ganil-spiral2.eu
CNRS : UPR3266 – IN2P3 – CEA : DSM/GANIL
Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5
France
The ISAC RIB facility at TRIUMF utilizes up to 100 μA from the 500 MeV H־ cyclotron to produce RIB using the Isotopic Separation On Line (ISOL) method. In the moment, we are mainly using a hot surface ion source and a laser ion source to produce our RIB. A FEBIAD ion source has been recently tested at ISAC, but these ion sources are not suitable for gaseous elements like N, O, F, Ne... A new type of ion source is then necessary. By combining a high frequency electromagnetic wave and a magnetic confinement, the ECRIS (Electron Cyclotron Resonance Ion Source) can produce high energy electrons essential for efficient ionization of those elements. To this end, a prototype ECRIS called MISTIC (Monocharged Ion Source for TRIUMF and ISAC Complex) has been build at TRIUMF using a design similar to the one developed at GANIL. The high level radiation caused by the proximity to the target prevented us to use a conventional ECRIS. To achieve a radiation hard ion source, we used coils instead of permanent magnets to produce the magnetic confinement. Each coil is supplied by 1000A-15V power supply. The RF generator cover a frequency range from 2 to 8 GHz giving us all the versatility we need to characterize the ionization of the following elements: He, Ne, Ar, Kr, Xe, C, O, N, F. Isotopes of these elements are involved in star thermonuclear cycles and, consequently, very important for researches in nuclear astrophysics. Measures of efficiency, emittance and ionization time will be performed for each of those elements. Preliminary tests show that MISTIC is very stable over a large range of frequency, magnetic field and pressure

Communications avec actes
2008
24/06/2007
Nuclear instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
internationale
266
M. Lion, W. Mittig, O. Navilliat-Cuncic, P. Roussel-Chomaz, A.C.C. Villari
4407-4410

XVth International Conference on Electromagnetic Isotope Separators and Techniques related to their Applications (EMIS2007)
Deauville
France
24/06/2007
29/06/2007

52.50.Sw; 41.75.Ak; 29.25.Rm
ECR – Ion source – ISAC – MISTIC – ISOL