Calibration of indium response functions in an Au-In-BSE system up to 800 MeV.
Calibration of indium response functions in an Au-In-BSE system up to 800 MeV.
复制标题
Au-In-BSE 系统中高达 800 MeV 的铟响应函数的校准。
DOI：
10.1093/rpd/ncp282
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发表时间：
2010
影响因子：
1
通讯作者：
Salehpour,Mohammad
中科院分区：
文献类型：
--
作者：
Wang,Zhonglu;Howell,RebeccaM;Burgett,EricA;Kry,StephenF;Hertel,NolanE;Salehpour,Mohammad
对金(Au)-铟(In)双箔邦纳球扩展(BSE)系统的响应函数进行了标定。用MCNPX程序计算了不同活化截面库(ACTL和ENDF VI分别为ACTL和ACTL，532DOS2为In)对体系In和Au箔的响应。为了验证和修正计算的响应函数，用已知中子强度的252Cf和241AmBe源照射了Bonner球形组件(BSS)，中子强度从热到20 MeV，并照射了洛斯阿拉莫斯中子科学中心的800 MeV中子束。用飞行时间(TOF)技术测量了800 MeV束流的中子谱。我们观察到，共振区激活截面的不确定性会导致基于激活箔的BSS的MCNPX计算的响应函数有很大的不确定性。MCNPX计算的响应函数必须使用已知光谱和强度的中子源进行修正。
Calibration of the response functions of a gold (Au)–indium (In) dual foil Bonner sphere extended (BSE) system was described. The response of the In and Au foil of the system was calculated using MCNPX code with different activation cross-sectional libraries: (ACTL and ENDF VI for gold and ACTL and 532DOS2 for In). To verify and correct the calculated response functions the Bonner sphere set (BSS) was irradiated using252Cf and241AmBe sources of known neutron strengths for neutrons ranging from thermal to 20 MeV, and was irradiated at the 800-MeV neutron beam of the Los Alamos Neutron Science Center. The neutron spectrum of the 800 MeV beam was determined using time-of-flight (TOF) technique. We observed that the uncertainty of activation cross section in the resonance region can result in great uncertainty in the MCNPX-calculated response functions of activation foil-based BSS. The MCNPX-calculated response functions must be corrected using neutron sources of known spectrum and strength.