CERN PS laser ion source development

CERN, together with ITEP and TRINITI (Russia), is developing a CO2 laser ion source. The key design parameters are: 1.4 1010 ions of Pb25+ in a pulse of 5.5 ms, with a 4-rms emittance of 0.2 10-6 rad m, working at a repetition rate of 1 Hz. This device is considered as one candidate source for LHC heavy ion operation. The status of the laser development, the experimental set-up of the source consisting of the target area and its illumination, the plasma expansion area and extraction, beam transport and ion pre-acceleration by an RFQ, will be given

Efficiency of solution-processed multilayer polymer light-emitting diodes using charge blocking layers

Parution de l'ouvrage collectif Gothic Science Fiction: 1980-2010, dirigé par Sara Wasson and Emily Alder, Liverpool University Press - Liverpool Science Fiction Texts & Studies, 256 pages Présentation sur le site de The University of Chicago Press. Gothic fiction’s focus on the irrational and supernatural would seem to conflict with science fiction’s rational foundations. However, as this novel collection demonstrates, the two categories often intersect in rich and revealing ways. Analyzing ..