CAJ | 학술논문

堆内超临界水回路对我国超临界水堆燃料和结构材料的辐照腐蚀实验具有重要意义，辐照装置位于反应堆堆芯栅格，是超临界水回路的核心部件。采用MCNP程序模拟研究辐照装置的关键物理参数，并考虑超临界水热物特性对物理参数的反馈效应。计算得到辐照装置热中子注量率为4.72×1013 cm-2· s-1，快中子注量率为1.55×1014 cm-2· s-1，辐照产热率为14.7 kW ，反应性引入为0.045％。
퇴내초림계수회로대아국초림계수퇴연료화결구재료적복조부식실험구유중요의의，복조장치위우반응퇴퇴심책격，시초림계수회로적핵심부건。채용MCNP정서모의연구복조장치적관건물리삼수，병고필초림계수열물특성대물리삼수적반궤효응。계산득도복조장치열중자주량솔위4.72×1013 cm-2· s-1，쾌중자주량솔위1.55×1014 cm-2· s-1，복조산열솔위14.7 kW ，반응성인입위0.045％。
In-pile supercritical water loop is essential for irradiation and corrosion tests of candidate fuel and structural materials of supercritical water reactor .The irradiation facility is the key component of the loop ,positioned in the grid of the reactor core . Physical parameters were calculated with MCNP code , considering the thermal feedback .The thermal neutron and fast neutron fluence rate ,irradiation heating and reactivity insertion of the irradiation facility are respectively 4.72 × 1013 cm -2 · s-1 , 1.55 × 1014 cm -2 · s-1 ,14.7 kW and 0.045% .