Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2017, Vol. 28 ›› Issue (7): 98 doi: 10.1007/s41365-017-0252-5

• LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS • Previous Articles     Next Articles

The AMS measurement of 236U at CIRCE

Yong-Jing Guan1,  Hui-Juan Wang1, Mario De Cesare2,3, Filippo Terrasi4   

  1. 1 Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science & Technology, Guangxi University, Nanning 530004, China
    2 Department of Diagnostic Methodologies and Measurement Techniques, Italian Aerospace Research Centre (CIRA), 81043 Capua (CE), Italy
    3 INFN, 80126 Naples, Italy
    4 CIRCE, Department of Mathematic and Physics, II University of Naples, 81100 Caserta, Italy
  • Supported by:

    Supported by the National Science Foundation of China (Nos. 41166002 and 11665006), and partly supported by the Guangxi Natural Science Foundation (No. 2012GXNSFFA060005) and Provincial Key laboratory Project.

PDF ShareIt Export Citation
Yong-Jing Guan, Hui-Juan Wang, Mario De Cesare, Filippo Terrasi. The AMS measurement of 236U at CIRCE.Nuclear Science and Techniques, 2017, 28(7): 98     doi: 10.1007/s41365-017-0252-5


Accelerator mass spectrometry (AMS) is an ultrasensitive technique for measuring long-lived actinides, e.g., 236U, 237Np and 239Pu 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 236U/238U was 1×10-11 by special resolution and 5.0×10-12 by time resolution. The pulse height defect of 236U in an ion-implanted silicon detector in the low-energy range with 17.26 MeV is presented.

Key words: Uranium, Accelerator mass spectrometry, Sensitivity, Pulse height defect