The Measurement Technology Method of 239Pu with the Developed Compact AMS System
With the technology improvement,a compact Accelerator Mass Spectrometry(AMS)device has been developed by China Institute of Atomic Energy on the basis of the low-energy AMS device developed earlier.The measurement method of239Pu was investigated with newly established compact AMS device.In order to establish the239Pu transport with the AMS system,the relationships of the transmission efficiency with the type of stripping gas,the selection of charge states,the thick-ness of stripping gas and the pre-acceleration voltage were systematically studied by using 238U,and then the optimized condi-tions of 239Pu measurement with the AMS system is established.It is verified that the linear R2 of the device is 0.999 7 and the detection limit of 239Pu is 0.1 fg through a series of standard samples and blank samples.It lays a foundation for the wide ap-plication of 239Pu in environmental and geological fields.
compact AMS239Pustudy of the measurement technology
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