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SPIRAL – a new radioactive beam facility

Lieuvin M.

Nukleonika

2003

Vol. 48,suppl.2

149-154

SPIRAL, the Radioactive Beam Facility at GANIL (Caen-France) is in operation since September 2001 and has already accelerated several radioactive beams. The paper presents the machine and the main characteristics of the first beams produced. We describe also the new project which is presently under discussion at GANIL:SPIRAL 2. This new machine will use either an electron or a deuteron linac to produce heavy fission nucleons far from the valley of stability.

Recent achievements at TRIUMF

Dutto G.

Nukleonika

2003

Vol. 48,suppl.2

159-163

A new series of experiments (mainly in astrophysics) began at TRIUMF in July 2001 when the ISAC-I linear accelerator started delivering radioactive ion beams (RIB) of energy up to 1.5 MeV/u. Since then the linac has operated reliably. Required improvements demand care during scheduled maintenance. More difficult was the smooth production of RIB with a 500 MeV proton beam on different target materials, where state-of-the-art techniques are being learned. Targets of CaO, Ta, SiC, Nb, and CaZrO3 have been used in combination with a surface ion source and incident proton currents up to 40 žA. Record radioactive beam intensities were achieved. A second target station is now being commissioned and will become operational during the fall of 2002. A superconducting linear accelerator extending the RIB energy to 6.5 MeV/u has recently been approved and is now being constructed (ISAC-II). A new 3500 m2 experimental building is being erected. A charge state booster, which will extend the mass range of the accelerated ions from A ? 30 to A ? 150, is also being commissioned. The 500 MeV cyclotron is being refurbished for reliability and upgraded to higher currents. A suitable operational beam tune for a total H- accelerated beam current of 300 žA has been commissioned and is now available to supply beam to four separate extraction proton lines simultaneously.