Development of new high-flux-intensity neutron sources and the need to equip them with efficient spectrometers raises the problem of designing special-purpose direct-beam monitors-detectors. These detectors feature an extremely low efficiency and a very low attenuation of the incident neutron beam. In this work, a two-coordinate position-sensitive monitor-detector is described that was developed for real-time recording of the profile of neutron beams generated by both steady and pulsed neutron sources. The basic parameters of this device are the following: a coordinate resolution of 4 x 4 mm(2), a sensitive area of 100 x 100 mm(2), and a recording efficiency of 10(-6)-10(-2). Use of nitrogen as a converter makes it possible to achieve a record low efficiency and still maintain other parameters at a desired level. The device can be combined not only with high-flux-intensity neutron sources already in use worldwide but also with next-generation sources being developed in the United States (SNS) and Japan (JPARC).
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机译：新型高通量强度的中子源的发展以及对它们配备高效光谱仪的需求，引起了设计专用直射束监测器-探测器的问题。这些探测器的特征是入射中子束的效率极低，衰减极小。在这项工作中，描述了一种用于实时记录由稳定和脉冲中子源产生的中子束轮廓的两坐标位置敏感监视器探测器。该设备的基本参数如下：坐标分辨率为4 x 4 mm（2），敏感区域为100 x 100 mm（2），记录效率为10（-6）-10（-2） 。使用氮气作为转化器可以实现创纪录的低效率，并且仍将其他参数保持在所需水平。该设备不仅可以与已经在世界范围内使用的高通量强度的中子源结合使用，还可以与在美国（SNS）和日本（JPARC）开发的下一代源结合使用。
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