National and Global Citizenship Education: Case Studies from Two Singapore Social Studies Classrooms

Abstract

Synchrotron radiation facilities presently have several options available to provide variably-polarized radiation, primarily by innovative insertion device designs. At the same time there is considerable interest within the larger {SR} user community in these new sources which will finally manipulate polarization, one of the most important properties of the radiation. Consequently, many synchrotron radiation facilities, both existing and under construction, can, or will, provide variably-polarized radiation to users. An update on current activity in this rapidly evolving technology, both in the {US} and abroad, is presented, covering requirements, various source and beamline options, and diagnostics.