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Shen, H.

Paper Title Page
G-08 Accelerator Mass Spectrometry for Long-Lived Heavy Ion 236U at CIAE 384
 
  • X. Wang, H. Shen, S. Jiang, M. He, K. Dong, C. Li, W. Wang, S. Wu, Y. Bao, X. Guan, Y. Hu, Q. You
    CIAE, Beijing
  • D. Zhang, G. Shi, C. Huang
    Guangxi University, Nanning
 
 

Funding: Work supported by the NSAF (National Nature Science Fundation- China Academy of Engineering Physics Fundation) No.10576040.


236U is a long-lived ra­dioac­tive iso­tope with a half-life of 2.342(3) ×107 a, which pro­duced prin­ci­pal­ly by ther­mal neu­tron cap­ture on 235U. 236U is po­ten­tial­ly ap­plied in ge­o­log­i­cal re­search and nu­cle­ar safe­guards. Ac­cel­er­a­tor mass spec­trom­e­try (AMS) is present­ly the most sen­si­tive tech­nique for the mea­sure­ment of 236U. A method for AMS mea­sure­ment of long-lived heavy ion 236U was de­vel­oped at CIAE with the set up the AMS ded­i­cat­ed in­jec­tor and the newly pro­posed 208Pb16O2- molec­u­lar ions for the sim­u­la­tion of 236U ion trans­port. A sen­si­tiv­i­ty of lower than 10-10 has been achieved for iso­topic ratio 236U/238U in pre­sent work.