Calibration of the Absolute Efficiency of Well-Type NaI(Tl) Scintillation Detector in 0.121–1.408 MeV Energy Range

<table class="fixed-width table-group" id="tab1"><tr><td><table class="table"><colgroup><col style="width:6.85em"/><col style="width:6.85em"/><col style="width:6.85em"/></colgroup><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">PTB<br/>Nuclide</td><td class="align_center">Activity<br/>kBq</td><td class="align_center">Uncertainty<br/>kBq</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left"><sup>152</sup>Eu</td><td class="align_center">290.0</td><td class="align_center">±4.0</td></tr><tr><td class="align_left"><sup>137</sup>Cs</td><td class="align_center">385.0</td><td class="align_center">±4.0</td></tr><tr><td class="align_left"><sup>60</sup>Co</td><td class="align_center">212.1</td><td class="align_center">±1.5</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>PTB radioactive sources activities and their uncertainties.</div>

Science and Technology of Nuclear Installations

tab1

Table 1

Table 1: Calibration of the Absolute Efficiency of Well-Type NaI(Tl) Scintillation Detector in 0.121–1.408 MeV Energy Range 