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                                 Abstract:The practical emittance measurement of a Proton Linear Accelerator inevitably involves deformation.This paper suggests a syntactic pattern recognition method to handle the deformation problem.This approach consists of two steps.The first step is to use a use a sett of shape primitives to describe the contour of the emittance shape.The second step is to analyze the description syntactically.Syntax-Directed Translation scheme is employed to remove the deformation.
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                        References
	
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