【摘 要】
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The X-ray has been one of the most important tools for scientific explorations and other applications, since it was discovered by Wilhelm Conrad R(o)ntgen in 18
【机 构】
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TsinghuaUniversity
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The X-ray has been one of the most important tools for scientific explorations and other applications, since it was discovered by Wilhelm Conrad R(o)ntgen in 1895.To reduce the dose on the target or the background noise, mono-energetic x-ray sources are strongly demanded.
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