Polarized beams are an ideal probe for magnetic properties in surfaces (β-NMR). Apart from the classical spin polarized Li beams, new intense probe beams that exhibit short half life and low spin are being developed. So far 11Be and 19F have been investigated for their usefulness. Cu and Zn beams are under development.
A major facility upgrade is underway to provide state of the art lasers, diagnostics, beam delivery and an improved operating environment for the development and delivery of new polarized beams, new beams capabilities, experiments & additional beam opportunities and time in the ARIEL era.
Planned 2020-2025 facility upgrades include a mult-purpose spectroscopy chamber that allows for quick reconfiguration between atom/ion spectroscopy/polarization, as well as the integration of a post acceleration system to enhance optical pumping.
This will be followed up by a major facility upgrade requested through a grant application to the Canadian Foundation for Innovation - for POLARIS, a multi-element, multi-spectrometer facility using beta detected NMR.
Project lead for the polarizEr facility is Dr. Ruohong Li (TRIUMF applied physicist and adj. prof. (physics) @ Saint Mary's U and U Windsor.
Optical detection region upgrade - to accomodate colinear fast beam laser spectroscopy & polarized beams this upgrade (planned for winter 2021) will allow for rapid facility reconfiguration between polarized beams and colinear fast beam laser spectroscopy and the multitude of dedicated optical and particle detection configurations employed. | Rb charge exchange cell for efficient quasi-resonant charge exchange of Fr+, Rb is superior to Na, which is used for Li and light element charge exchange. A new vapor-jet charge exchange cell was designed, fabricated & operated (S1010 collinear laser spectroscopy of Fr isotopes, Sept. 2011). Now in routine operation. | Na charge exchange cell efficient quasi-resonant charge exchange on Na is used for Li and light elements. The current vapor-jet charge exchange cell has been optimized for long, continuous operation at ISAC. |
| 8 lithium standard beam for β-NMR / β-NQR experiments |
11 beryllium needs more sensitive asymmetry detection drawback: T1/2=11s | 19 fluorine limited polarization | 31 magnesium 31Mg spin-polarization test T1/2=230(20)ms (fall 2013 - no liquid He for β-NMR to measure pol. - next run 2014) |
32 sodium Osaka group - laser spectroscopy T1/2=12.9(7) ms | new projects | copper bio β-NMR |
actinium atomic structure & optical pumping studies | zinc bio β-NMR |