950keV, 3.95MeV and 6MeV X-band linacs for nondestructive evaluation and medicine
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment(2011)
摘要
We are developing compact X-band linac X-ray sources for nondestructive evaluation and medicine. First, we develop a portable X-ray system by a 950keV 9.4GHz X-band linac to realize on-site inspection. We use a low power (250kW) magnetron as an RF source for compactness of the whole system. Since the RF power source is quite small and the stored energy in the structure is also small, we faced the problem of beam loading and current/RF-power oscillation. We are analyzing the problem by the circuit model. We plan to use this system for erosion inspection of metal pipes of petrochemical complex. By adopting a side-coupling cavity design to avoid the oscillation, we have developed 6MeV X-band (9.3GHz) linac for pinpoint dynamic tracking cancer therapy. Furthermore, we are manufacturing 3.95MeV X-band (9.3GHz) linac X-ray source with flexible waveguides for on-site bridge inspection. Updated results and situations are presented.
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关键词
X-band linac,Portable X-ray source,On-site inspection,Petrochemical complex,Bridge inspection,Pinpoint cancer therapy
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