论文标题
多层$^{10} B $ -RPC中子成像检测器
Multilayer $^{10}B$-RPC neutron imaging detector
论文作者
论文摘要
电阻板室（RPC）衬有$^{10} B_ {4} $ C中子转换器，是一种有前途的成本效率技术，对于位置敏感的热中子检测，能够优于$^{3} $ HE基于空间分辨率和计时的检测器。但是，至于正常光束入射的单层$^{10} b_ {4} $ c的其他类型的气态探测器，对单个GAP $^{10} B $ -RPC的热中子的检测效率仅为6％。为了克服这一限制，我们引入了一个多层$^{10} b $ -RPCSTECTER，并带有十个双间隙混合RPC的堆栈。介绍了对检测器设计及其表征的描述在FRM II中子设施的Treff中子梁线上进行的。结果表明，对于波长为4.7Å的中子的检测效率超过60％，空间分辨率（FWHM）分别在X和Y方向上分别为0.25 mm和0.35 mm。
Resistive plate chambers (RPC) lined with $^{10}B_{4}$C neutron converters is a promising cost effective technology for position-sensitive thermal neutron detection capable to outperform $^{3}$He-based detectors in terms of spatial resolution and timing. However, as for the other types of gaseous detectors with a single layer of $^{10}B_{4}$C at normal beam incidence, the detection efficiency to thermal neutrons of a single-gap $^{10}B$-RPC is only about 6%. Aiming to overcome this limitation, we introduce a multi-layer $^{10}B$-RPCs detector with a stack of ten double-gap hybrid RPCs. A description of the detector design and the results of its characterization performed at the TREFF neutron beamline at the FRM II neutron facility are presented. The results demonstrate that the detection efficiency exceeds 60% for neutrons with a wavelength of 4.7 Å and the spatial resolution (FWHM) is about 0.25 mm and 0.35 mm in the X and Y direction, respectively.
