Study on the Impact of Thermal Agitation on Doppler Coefficient in Epithermal Range for Gd-Bearing Fuel

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="left">Gd<sub>2</sub>O<sub>3</sub> concentration [wt%]</td><td align="center">Impact on Doppler<br/> coefficient [%]</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">0</td><td align="center">9.4</td></tr><tr><td align="left">0.2</td><td align="center">12.2</td></tr><tr><td align="left">2</td><td align="center">12.0</td></tr><tr><td align="left">5</td><td align="center">10.6</td></tr><tr><td align="left">10</td><td align="center">8.5</td></tr><tr><td align="left">20</td><td align="center">5.6</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Impact evaluated by UA method for various Gd<sub>2</sub>O<sub>3</sub> concentrations.

Science and Technology of Nuclear Installations

tab3

Table 3

Table 3: Study on the Impact of Thermal Agitation on Doppler Coefficient in Epithermal Range for Gd-Bearing Fuel 