Nuclear Techniques ›› 2014, Vol. 37 ›› Issue (08): 80501-080501.doi: 10.11889/j.0253-3219.2014.hjs.37.080501


Verification of the integral experimental system with standard sample method

ZHANG Kai1 NIE Yangbo1 BAO Jie1 RUAN Xichao1 REN Jie1 HAN Rui2 HUANG Hanxiong1 LI Xia1 ZHOU Zuying1   

  1. 1(Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing 102413, China) 2(Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China)
  • Received:2014-03-20 Revised:2014-04-17 Online:2014-08-10 Published:2014-07-22

Abstract: Background: Integral experiment is an important means to verify the accuracy of the evaluated nuclear data. The reliability of the experimental system is important for evaluating nuclear data. Purpose: In order to check the reliability of the experimental system in China Institute of Atomic Energy (CIAE), the standard sample method was used. Methods: The neutron leakage spectra were measured at 47° for polyethylene sample (10 cm×10 cm×5 cm) and at 30° for water sample (?10 cm×5 cm). The experimental results (E) have been compared with the calculated ones (C) which have been simulated using MCNP5 code. Results: The results showed that the ratios of n-p scattering area (C/E values) were consistent in the uncertainty of 2% for both samples. Conclusion: This experiment confirmed that the nuclear data measured by this experimental system was reliable.

Key words: Integral experiment, Standard sample method, Time-of-flight (TOF), n-p scatter, C/E values