去年大跃进中,我们设计并制成了一台平面中子晶体谱仪。本文将简略地介绍这台仪器的概貌和初步调整后的性能以及在调整过程中所得到的初步结果。 限于篇幅,我们不准备再重复许多文献(例如[1])中已谈得很多的基本原理。 1.仪器机械结构及工作概况的简单描述 图1是“跃进一号”的工作示意图。从反应堆水平实验孔道内引出的中子束经过准直后入 During the Great Leap Forward last year, we designed and fabricated a planar neutron crystal spectrometer. This article will briefly outline the overview of the instrument and the initial adjusted performance and the initial results obtained during the tuning process. Due to space limitations, we are not going to repeat the much-talked-about rationale in many of the literature (eg [1]). 1. Brief Description of the Mechanical Structure and Work Profile of the Instrument Figure 1 is the working sketch of “No. 1 Yuejin”. The neutron beam from the reactor horizontal experimental channel is collimated and then entered