| Developments in accelerator mass spectrometry (AMS) method for 182Hf |
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| 作者姓名： | 拓飞 何明 沈洪涛 武绍勇 胡跃明 包轶文 欧阳应根 游曲波 窦玉玲 姜山 |
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| 作者单位： | 1 Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China;2 School of Nuclear Science & Technology, Lanzhou University, Lanzhou 730000, China;3 Radiochemistry Department, China Institute of Atomic Energy, Beijing 102413, China;4 The College of Physics Science and Technology, Guangxi University, Nanning 530004, China |
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| 摘 要： | 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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| 关 键 词： | 182Hf accelerator mass spectrometry (AMS) HfF4 injector solid-phase reaction |
| 收稿时间： | 2008-7-17 |
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