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首页> 外文会议>International Nuclear Science, Technology and Engineering Conference >Beam characterization of new neutron radiography facility at TRIGA Mark II PUSPATI research reactor
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Beam characterization of new neutron radiography facility at TRIGA Mark II PUSPATI research reactor

机译：Triga Mark II Puspati研究反应堆新中子造影设施的光束特征

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Characterization of neutron beam compositions is important in order to capture great radiographic images. The quality of the neutron beam has significant impacts to the radiographic images produced using that beam. Characterizing of the beam, including determination of the effective value for the thermal neutron content, scattered neutron content, gamma content, and pair production content as well as beam sensitivity, is vital for producing quality radiographic images. This paper provides a characterization of the neutron radiography's beam port (beam port 3) at TRIGA Mark II PUSPATI research reactor (RTP). The experiments to determine the effective beam contents and neutron radiograph sensitivity at the beam are based on American Society for Testing and Materials (ASTM) standards document E545. The Beam Purity Indicator (BPI) and Sensitivity Indicator (SI) are the standard used in these experiments. Neutron radiographic imaging of this standard was performed using direct radiographic method with 0.1 mm thickness Gadolinium (Gd) metal converter and film. Characterization of the beam was carried out for 10, 15, 20, 25 and 30 minutes exposure time at 750 kW reactor operating power. The standard was placed at 110 cm from the beam opening. The current neutron beam performances are compared with previous results.
机译：为了捕获大放射线图像，中子束组合物的表征是重要的。中子束的质量对使用该光束产生的放射线图像具有显着影响。光束的表征，包括测定热中子含量的有效值，散射中子含量，γ含量和对生产含量以及光束敏感性，对于生产质量放射线图像至关重要。本文提供了在Triga Mark II Puspati研究反应器（RTP）的中子射线照相梁（梁11）的表征。确定梁上的有效光束内容和中子放射光照片敏感性的实验是基于美国测试和材料（ASTM）标准文件E545。光束纯度指示器（BPI）和敏感性指示器（SI）是这些实验中使用的标准。使用具有0.1mm厚度钆（Gd）金属转换器和薄膜的直接射线照相方法进行该标准的中子放射线影像学成像。在750kW反应器操作功率下，在750kW反应器的曝光时间内进行光束的表征。标准从光束开口置于110厘米。将当前的中子束性能与先前的结果进行比较。

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