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Synchrotron radiation ( SR ) , which combines extremely high intensity , high collimation , tunability , and continuous energy spectrum , allows the development of advanced X - ray based techniques that are becoming a uniquely useful tool in life science research , along providing exciting opportunities in biomedical imaging and radiotherapy .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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