Measurement of ⁶³Ni produced in copper samples by the Hiroshima atomic bomb by liquid scintillation method

Abstract

  The ⁶³Ni in copper samples exposed by the Hiroshima atomic bomb was clearly measured by liquid scintillation method for the first time. For the measurement, the chemical separation scheme previously developed in decommissioning the FM/FF cyclotron at Institute for Nuclear Study, University of Tokyo was improved. The obtained results were agreed well with those estimated by the new dosimetry system 2002 (DS02).