Spot size diagnostics for flash radiographic X-ray sources at LAPA

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LI Cheng-Gang, LI Qin, SHI Jin-Shui and DENG Jian-Jun. Spot size diagnostics for flash radiographic X-ray sources at LAPA[J]. Chinese Physics C, 2009, 33(S2): 157-160. doi: 10.1088/1674-1137/33/S2/041
LI Cheng-Gang, LI Qin, SHI Jin-Shui and DENG Jian-Jun. Spot size diagnostics for flash radiographic X-ray sources at LAPA[J]. Chinese Physics C, 2009, 33(S2): 157-160.  doi: 10.1088/1674-1137/33/S2/041 shu
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Received: 2009-01-05
Revised: 1900-01-01
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Spot size diagnostics for flash radiographic X-ray sources at LAPA

    Corresponding author: LI Cheng-Gang,

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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