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Bessho, K.

Paper Title Page
MOPEA064 Accelerator Mass Spectrometry at the Tsukuba 12 MV Pelletron Tandem Accelerator 223
 
  • K. Sasa, N. Kinoshita, Y. Nagashima, K. Sueki, T. Takahashi, Y. Tosaki
    UTTAC, Tsukuba, Ibaraki
  • K. Bessho, H. Matsumura
    KEK, Ibaraki
  • Y. Matsushi
    University of Tokyo, Research Center for Nuclear Science and Technology, Tokyo
  
 

Ac­cel­er­a­tor Mass Spec­trom­e­try (AMS) is a high­ly sen­si­tive mass spec­tro­met­ric method for mea­sur­ing rare iso­topes. The tech­nique is main­ly ap­plied in chronol­o­gy, earth and en­vi­ron­men­tal sci­ences to date sam­ples using long-lived ra­dioiso­topes. With a mul­ti-nu­clide AMS sys­tem on the 12 MV Pel­letron tan­dem ac­cel­er­a­tor at the Uni­ver­si­ty of Tsuku­ba (Tsuku­ba AMS sys­tem), we are able to mea­sure en­vi­ron­men­tal lev­els of long-lived ra­dioiso­topes of C-14, Al-26, Cl-36, Ca-41 and I-129 by em­ploy­ing a molec­u­lar pilot beam method. The high ter­mi­nal volt­age of 12 MV is an ad­van­tage for AMS to de­tect heavy ra­dioiso­topes. The prin­ci­ple of AMS and ap­pli­ca­tions with the Tsuku­ba AMS sys­tem will be re­port­ed in this paper.