A new type of ultra-cold ion source is under development which employs transverse laser cooling and compression of a thermal atomic rubidium beam followed by photo-ionization. The resulting ultra-cold plasma is focused to a nanometer-sized spot using an existing Focused Ion Beam column and this spot can be used for the fabrication of nano-structures. Simulations of a 10 cm long laser-cooling stage and of disorder-induced heating of the resulting ion beam, predict an achievable brightness for87Rb+ of order 107 A/m2 sr eV at an longitudinal energy spread of less than 1 eV and a current of tens of pA, which is substantially better than conventional ion sources. Experimental realization of the compact ion source has recently started with the development of an efficient high-flux atom source and a 2D laser cooler. Progress on these items will be reported.
|Number of pages||1|
|Publication status||Published - 2013|
|Event||25th NNV Symposium on Plasma Physics and Radiation Technology, March 5-6, 2013, Lunteren, The Netherlands - De Werelt, Lunteren, Netherlands|
Duration: 5 Mar 2013 → 6 Mar 2013
|Conference||25th NNV Symposium on Plasma Physics and Radiation Technology, March 5-6, 2013, Lunteren, The Netherlands|
|Period||5/03/13 → 6/03/13|