Oct 3 – 7, 2022
Science Culture Center, IBS
Asia/Seoul timezone

Latest improvements of the SPIRAL1 facility at GANIL

Oct 3, 2022, 6:54 PM
S236 (Science Culture Center, IBS)


Science Culture Center, IBS

55 EXPO-ro, Yuseong-gu, Daejeon
Poster Session Poster Session


Dr Pierre Chauveau (GANIL)


Since 2001, the SPIRAL1 facility has been providing post-accelerated radioactive beam by the ISOL method. Over the last decade, SPIRAL1 has been improved to provide beams of condensable elements, by using a combination of a FEBIAD-type ion source (to produce 1+ ions) and a PHOENIX ECR charge breeder (to transform 1+ ions into N+ ions for post-acceleration).
The FEBIAD ion source has undergone several minor design changes over the years in order to increase its efficiency and reliability over week-long experimental campaigns. The latest design of our Target Ion Source System (TISS) has achieved argon ionization efficiencies up to 25% and has been able to sustain 15% efficiency for 8 continuous days with excellent stability.
Progress has also been made on the SPIRAL1 charge breeder (SP1CB), which has been fitted with a second HF amplifier. This new TWT amplifier can be used alone (variable single frequency heating) or in combination with a Klystron amplifier (double frequency heating) to help us control the charge-state distribution at the exit of the SP1CB and therefore the range of energy and intensity available after post-acceleration with the CIME cyclotron.
Recent results regarding these improvements will be presented.

Primary authors

Dr Pierre Chauveau (GANIL) Vincent Bosquet (Ganil) Samuel DAMOY (GANIL) Pierre DELAHAYE (GANIL) Mickaël DUBOIS (GANIL) Pascal JARDIN (GANIL) Mathieu LALANDE (GANIL) Dr Laurent Maunoury (GANIL) Jean-Charles Thomas (GANIL Caen)

Presentation materials