[Triumf-seminars] TRIUMF Accelerator Seminar today at 14:00

[postmaster at admin.triumf.ca]

Date/Time: Wed 2011-02-09 at 14:00

Location:  Auditorium          

Speaker:   Ruohong Li (TRIUMF)

Title:     Laser ion source off-line developments for radioactive ion beams

Abstract: The Resonant Ionization Laser Ion Source (RILIS) is an element selective, highly efficient and versatile tool to generate radioactive ion beams at on-line mass separator facilities. Parallel to TRIUMF's on-line RILIS at ISAC, an off-line laser ion source test stand is operated for systematic laser resonance ionization spectroscopy, ionization scheme and ion source development. Three Ti:sapphire lasers with the option of harmonic frequency generation (doubling, tripling or quadrupling) are used to resonantly step-wise ionize the element of interest. An available grating-tuned Ti:sapphire laser allows continuous laser wavelength scans of up to 100 nm. With this laser inventory and the RILIS test stand, Rydberg series and auto-ionizing levels can systematically be studied. Since August 2009 the LIS test stand has been commissioned and spectroscopy on Ga, Al and Ca has been performed. The development of efficient laser resonant ionization schemes, their investigation and comparison using the laser ion source test stand will be discussed.




______________________________

Subscription information available at http://admin.triumf.ca/netdata/seminars/list