Intercomparision measurements of Cl-36

Abstract

As a part of reassessment study of A-bomb radiation dosimetry in Hiroshima and Nagasaki, the magnitudes of Cl-36 created in A-bombed granites through a (n,g) reaction have been measured by a means of a tandem accelerator mass spectrometry (AMS). In order to guarantee the reliability of result, three laboratories, Tsukuba, LLNL and Munchen, were involved into this study and measured the samples prepared from the same granites. Though each laboratory uses own developed AMS techniques, the agreement of result is sufficient and the results strongly support a new dosimetry system DS02. It will be reported the details of the Cl-36 AMS and will be discussed about the results. [J Radiat Res 44:383 (2003)]