,The AMS measurement of 236U at CIRCE

• 作 者: Yong-Jing Guan Hui-Juan Wang Mario De Cesare Filippo Terrasi
• 机 构: Guangxi Key Laboratory for Relativistic Astrophysics,School of Physical Science & Technology,Guangxi
• 出 处: Nuclear Science and Techniques
• 发表日期: 2017年07期
• 关键词: Uranium Accelerator mass spectrometry Sensitivity Pulse height defect

Accelerator mass spectrometry(AMS) is an ultrasensitive technique for measuring long-lived actinides,e.g.,~(236)U,~(237)Np and Pu isotopes.In order to improve the detection limit for actinides abundance,and to increase the detection efficiency in actinides AMS measurement,a 16-strip silicon detector was used to identify actinides at the Center for Isotopic Research on Cultural and Environmental heritage in Caserta,Italy.The sensitivity of ~(236)U/~(238)U was 1×10~(-11) by special resolution and 5.0×10~(-12) by time resolution.The pulse height defect of~(236)U in an ion-implanted silicon detector in the low-energy range with 17.26 MeV is presented.

Accelerator mass spectrometry (AMS) is an ultrasensitive technique for measuring long-lived actinides, eg, ~ (236) U, ~ (237) Np and Pu isotopes.In order to improve the detection limit for actinides abundance, and to increase the detection efficiency in actinides AMS measurement, a 16-strip silicon detector was used to identify actinides at the center for Isotopic Research on Cultural and Environmental heritage in Caserta, Italy. The sensitivity of ~ (236) U / ~ (238) U was 1 × 10 ~ (-11) by special resolution and 5.0 × 10 ~ (-12) by time resolution.The pulse height defect of ~ (236) U in an ion-implanted silicon detector in the low-energy range with 17.26 MeV is presented .