Festa G, Grazzi F, Pietropaolo A, Scherillo A, Schooneveld E M
Consiglio Nazionale delle Ricerche, Istituto dei Sistemi Complessi, Firenze, Italy.
ENEA Centro Ricerche Frascati, Department of Fusion and Technologies for Nuclear Safety and Security, Frascati, Roma, Italy; MIFP-Mediterranean Institute of Fundamental Physics, Via Appia Nuova 31, 00040 Marino, Rome, Italy.
Appl Radiat Isot. 2017 Dec;130:264-269. doi: 10.1016/j.apradiso.2017.10.020. Epub 2017 Oct 13.
Experimental tests are presented that assess the cross-talk level among three scintillation detectors used as neutron counters exploiting the thermal neutron radiative capture on Cd. The measurements were done at the INES diffractometer operating at the ISIS spallation neutron source (Rutherford Appleton Laboratory, UK). These tests follow a preliminary set of measurements performed on the same instrument to study the effectiveness of this thermal neutron counting strategy in neutron diffraction measurements, typically performed on INES using squashed He filled gas tubes. The experimental data were collected in two different geometrical configurations of the detectors and compared to results of Monte Carlo simulations, performed using the MCNP code.
本文展示了一些实验测试，这些测试评估了三个用作中子计数器的闪烁探测器之间的串扰水平，该中子计数器利用镉上的热中子辐射俘获。测量是在英国卢瑟福·阿普尔顿实验室的ISIS散裂中子源运行的INES衍射仪上进行的。这些测试是在同一仪器上进行的一组初步测量之后进行的，目的是研究这种热中子计数策略在中子衍射测量中的有效性，中子衍射测量通常在INES上使用充有氦气的压扁气体管进行。实验数据是在探测器的两种不同几何配置下收集的，并与使用MCNP代码进行的蒙特卡罗模拟结果进行了比较。
