Spot size diagnostics for flash radiographic X-ray sources at LAPA |
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Authors: | LI Cheng-Gang LI Qin SHI Jin-Shui DENG Jian-Jun |
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Institution: | Laboratory of Accelerator Physics and Application, Institute of Fluid Physics, CAEP |
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Abstract: | Spot size is one of the parameters to characterize the performance of a radiographic X-ray source.It determines the degree of blurring due to magnification directly.In recent years,a variety of measurement methods have been used to diagnose X-ray spot size at Laboratory of Accelerator Physics and Application (LAPA).Computer simulations and experiments showed that using a rolled-edge to measure the spot size are more accurate,and the intensity distribution of X-ray source was obtained by a device with a square aperture.Experimental and simulation results on a flash X-ray source at our laboratory are presented and discussed in this paper.In addition,a new method for time resolved diagnostics of X-ray spot size is introduced too. |
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Keywords: | linear induction accelerator X-ray spot size rolled-edge square aperture time resolved |
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