原子能科学技术
原子能科學技術
원자능과학기술
ATOMIC ENERGY SCIENCE AND TECHNOLOGY
2014年
5期
908-912
,共5页
何丽霞%甘霖%隋洪志%陈立君
何麗霞%甘霖%隋洪誌%陳立君
하려하%감림%수홍지%진립군
滞留量%核材料衡算%自吸收校正%自吸收二维校正模型
滯留量%覈材料衡算%自吸收校正%自吸收二維校正模型
체류량%핵재료형산%자흡수교정%자흡수이유교정모형
holdup%nuclear material account%self-absorption correction%two-dimensional model for self-absorption correction
实现铀生产工艺设备中滞留量的准确测量是核材料衡算与控制过程的一个关键点。由于γ射线的自吸收效果显著,工艺设备几何结构特殊,无法采用常规校准方法进行数据处理。本文开展该情况下的自吸收校正方法研究,在物料厚度、介质成分、几何参数不确定的条件下,初步建立了自吸收二维校正模型。模拟样品验证表明,建立的自吸收二维校正模型满足铀生产工艺设备滞留量测量的需求。
實現鈾生產工藝設備中滯留量的準確測量是覈材料衡算與控製過程的一箇關鍵點。由于γ射線的自吸收效果顯著,工藝設備幾何結構特殊,無法採用常規校準方法進行數據處理。本文開展該情況下的自吸收校正方法研究,在物料厚度、介質成分、幾何參數不確定的條件下,初步建立瞭自吸收二維校正模型。模擬樣品驗證錶明,建立的自吸收二維校正模型滿足鈾生產工藝設備滯留量測量的需求。
실현유생산공예설비중체류량적준학측량시핵재료형산여공제과정적일개관건점。유우γ사선적자흡수효과현저,공예설비궤하결구특수,무법채용상규교준방법진행수거처리。본문개전해정황하적자흡수교정방법연구,재물료후도、개질성분、궤하삼수불학정적조건하,초보건립료자흡수이유교정모형。모의양품험증표명,건립적자흡수이유교정모형만족유생산공예설비체류량측량적수구。
Achieving exactly quantitative holdup in uranium produced tank is a key point for nuclear material account and control .Due to the tank’ s particularity design and gamma ray remarkable self-absorption , conventional calibration methods can ’ t be adopted for self-absorption data analysis .The self-absorption correction method in the special case was researched , and also a two-dimensional model for self-absorption correction was established .It is available for these cases such as thickness of the material , matrix ingredients and geometric are incomprehensive . The validation of simulation sample shows that the two-dimensional model meets the requirement of holdup measure-ment in uranium produced tank .