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A new class of small powerful low-cost accelerators that could eventually lead beyond “tabletop” systems to highly integrated, subminiature ones based on IC technology.
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Stanford Reference: 08-334 Abstract Stanford researchers have developed a new method of particle transport, manipulation, and control by means of optically excited electromagnetic modes in suitably configured photonic band gap (PBG) fibers. This revolutionary approach utilizing PBG microstructures offers the opportunity to develop a new class of small powerful low-cost accelerators that could eventually lead beyond “tabletop” systems to highly integrated, subminiature ones based on IC technology or full systems on a single chip (SOCs). These compact high-gradient inexpensive accelerators will have applications throughout industrial fabrication, structural analysis and diagnostics, and instrumentation. Among many examples are instruments needed for both the fabrication and characterization of nanostructures because these are typically based on high-energy electron and ion beams (i.e. e-beam lithography, scanning and transmission electron microscopy, focused ion beams, X-ray sources, Auger spectroscopy and the like). Stage of Research: Researching different modes and how to optimize and realize them for acceleration and other uses such as electron optical or special insertions for laser frequency conversion. Applications Laser driven accelerator structures Industrial fabrication, structural analysis and diagnostics, and instrumentation Instruments based on high energy electron and ion beams (e.g. e-beam lithography, scanning and transmission electron microscopy, focused ion beams, x-ray sources, and Auger spectroscopy) Telecommunications fiber optics Advantages Optimizes accelerator mode properties New structural design of the defect geometry to support well confined accelerating modes in such PBG fibers Enables the development of compact high-gradient inexpensive accelerators Potential advantages over metal/copper cavities in making shorter and higher-energy accelerators New generation of linear particle accelerator has a 20-100-fold increase in accelerating gradients relative to OFHC copper Publications R.J. Noble, J. E. Spencer, and B. T. Kuhlmey, "Hollow-core photonic band gap fibers for particle acceleration", Phys. Rev. ST Accel. Beams 14, 121303 (2011). Robert J. Noble, Eric R. Colby, Benjamin Cowan, Christopher M. Sears, Robert H. Siemann, James E. Spencer, "DESIGNING PHOTONIC BANDGAP FIBERS FOR PARTICLE ACCELERATION"; SLAC, Proceedings of PAC07, Albuquerque, New Mexico, USA Related Web Links SLAC- National Accelerator Lab Patent Status Issued: 8,410,729 (USA)