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Commissioning of two large coherent light facilities at SLAC and DESY should begin in 2008 and in 2011 respectively. In this paper we look further into the future, hoping to answer, in a very preliminary way, two questions. First: What will the next generation of the XFEL facilities look like? Believing that super-conducting technology offers several advantages over room-temperature technology, such as high quality beams with highly populated bunches and the possibility of energy recovery or higher overall efficiency, we focus this preliminary study on the superconducting option. From this belief the second question arises: ''What modifications in superconducting technology and in machine design are needed, as compared to the present DESY XFEL, and what kind of R & D program is required over the next few years to arrive at a technically feasible solution with even higher brilliance and increased overall conversion of AC power to photon beam power. In this paper we will very often refer to and profit from the DESY XFEL design, acknowledging its many technically innovative solutions.
This book constitutes the proceedings of the XVIII International Symposium on Lepton-Photon Interactions. It contains 30 review papers on the latest developments by experts in the field. The subjects cover the structure of photons and hadrons, progress in QCD and diffraction, heavy quark (c, b, t) physics, electroweak precision measurements and tests, CP violation, neutrino physics, searches for new particles and phenomena, cosmology, progress in theory and physics at future colliders.
Ein Übungsbuch in acht einfach verständlichen Kapiteln beschreibt und beleuchtet das Thema Meditieren. Dr. Itai Ivtzan erklärt durch wissenschaftliche Studien untermauert die Wirkung der Meditation durch das Zusammenwirken von Psychologie und Spiritualität. Und er beschreibt unterschiedlichste Arten der Meditation und weshalb es bei kontinuierlicher Anwendung des Meditierenden die Aufmerksamkeit stetig verbessert und weshalb Bewusstsein Freiheit ist. Fragebögen laden zur Selbstreflexion ein