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

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 180HfF-/5 for HfF4 samples produced by dry method is about 2-3 times and 1.5 times of that by previously method,respectively.

关键词： 182Hf accelerator mass spectrometry (AMS) HfF4 injector solid-phase reaction

作者: TUO Fei(拓飞) JIANG Shan(姜山) HE Ming(何明) SHEN Hong-Tao(沈洪涛) WU Shao-Yong(武绍勇) HU Yue-Ming(胡跃明) BAO Yi-Wen(包轶文) OUYANG Ying-Gen(欧阳应根) YOU Qu-Bo(游曲波) DOU Yu-Ling(窦玉玲)

作者单位: Department of Nuclear Physics,China Institute of Atomic Energy,Beijing 102413,China;School of Nuclea Department of Nuclear Physics,China Institute of Atomic Energy,Beijing 102413,China Radiochemistry Department,China Institute of Atomic Energy,Beijing 102413,China Department of Nuclear Physics,China Institute of Atomic Energy,Beijing 102413,China;The College of P

会议类型: 国际会议

会议名称: The 13th National Nuclear Physics Conference of China(第十三届全国核物理大会暨第八届会员代表大会)

会议地点: 兰州

会议语种:英文

页码: 201-204

在线出版日期: 2007-08-22（万方平台首次上网日期，不代表论文的发表时间）