Developments in accelerator mass spectrometry (AMS) method for 182Hf

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TUO Fei, HE Ming, SHEN Hong-Tao, WU Shao-Yong, HU Yue-Ming, BAO Yi-Wen, OUYANG Ying-Gen, YOU Qu-Bo, DOU Yu-Ling and JIANG Shan. Developments in accelerator mass spectrometry (AMS) method for 182Hf[J]. Chinese Physics C, 2008, 32(S2): 201-204.
TUO Fei, HE Ming, SHEN Hong-Tao, WU Shao-Yong, HU Yue-Ming, BAO Yi-Wen, OUYANG Ying-Gen, YOU Qu-Bo, DOU Yu-Ling and JIANG Shan. Developments in accelerator mass spectrometry (AMS) method for 182Hf[J]. Chinese Physics C, 2008, 32(S2): 201-204. shu
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Received: 2008-07-17
Revised: 1900-01-01
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Developments in accelerator mass spectrometry (AMS) method for 182Hf

    Corresponding author: TUO Fei,

Abstract: The present detection limit for 182Hf at CIAE HI-13 AMS systems could not satisfy various applications (e. g. detection of a nearby supernovae signal). Therefore, techniques were developed in this work to improve the AMS measurement of 182Hf mainly on building a new injector and using a method that based on solid-phase reaction for the preparation of HfF4 samples from HfO2. The experimental results show that mass resolution of the injector can reached 630, and the F/O- and beam current of 180HfF5 for HfF4 samples produced by dry method is about 2—3 times and 1.5 times of that by previously method, respectively.

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