MCNP计算用ADS截面库ADSlib2.0的制作.PDF

24 4 () Vol. 24 No. 4 2010 12 Journal ofUn iv rsity of South China( Sci nc and T chnology) D c. 20 10 : 1673- 0062( 20 10) 04- 0011- 03 MCNP计算用ADS截面库 ADSlib2. 0的制作 * 谢金森, 于 涛 , 钱金栋 ( , 42 100 1) : 加速器驱动洁净核能系统(简称ADS) 使用高能散裂中子驱动次临界反 堆, 用于嬗变长寿命高放废物( LHW ) . ADS次临界反 堆中子能量较高, 使用传统的 ENDF截面数据库对ADS堆芯物理计算存在着能量上限低部分数据缺失等问题. 本 文使用MAKXSF程序对 IAEA- ADS截面数据库 ADS Nucl ar Data L ibrary进行了加 工, 制作出专用于 MCNP计算用的截面库 ADS lib2. 0, 并与 ENDF /B - V II. 0, JEFF - 238 3. 1和 JENDL- 4. 0库中 U 裂变截面的比较, 表明该截面数据库是可用的. : 加速器驱动洁净核能系统; ADS lib2. 0; MAKXS; M CNP : TL328 : B Processing ofADS Cross- section Library- ADSlib2. 0 forMCNP * XIE Jin-sen, YU ao , QIAN Jin-dong ( School ofNucl ar Sci nc and T chnology, Un iv rsity of Sou th China, H ngyang, Hunan 42100 1, Ch ina) Abstract: A cc l rator D riv n Syst m (ADS) is a sub- critical r actor driv n by high n r- gy spallation n utrons, w hich is us d for Long- lif H igh radioactiv W ast ( LHW ) trans- mutation. N utron n rgy in ADS is h igh r than traditional r actors, w hich lmi its in ENDF data is low r for ADS and som r action cross- s ctions ar m issing. In th is pap r, ADSlib2. 0 which is sp cialADS data forMCNP calculation is proc ss d by MAKXSF using IAEA - 238 ADS cross- s ction library. Th comparison of fission cross- s ction of U b tw n AD- S lib2. 0 and valuat d nucl ar data librari s that includ ENDF /B - V II. 0, JEFF- 3. 1 and JENDL- 4. 0 show s