Rehnberg J D, Yoder J R, Hunt G R
Perkin-Elmer Corporation,Norwalk, Connecticut, USA.
Appl Opt. 1967 Jun 1;6(6):1111-20. doi: 10.1364/AO.6.001111.
Equipment was constructed to produce pictorial maps of lunar radiance patterns or of possible variations in lunar surface composition. A motor-driven platform scans a rectangular line raster in the image plane of an astronomical telescope. A liquid helium-cooled copper-doped germanium detector subtending 5 see of arc is scanned through a 15 min of arc square field. The detector signal modulates a glow lamp, also mounted on the scan platform which, by synchronously scanning, builds up a pictorial image on Polaroid film. When operated in the radiometric mode the equipment produces a pictorial display of lunar thermal patterns. When operated in the compositional study mode the incoming lunar emission spectrum is instrumentally compared with the reflection spectrum of mineral specimens. If the spectra are converse the resulting minimum signal produces a dark area on the map, implying compositional similarity between the . lunar surface region and the mineral material. Several pictorial examples are given.
该设备用于绘制月球辐射模式或月球表面成分可能变化的图像地图。一个电动平台在天文望远镜的像平面上扫描一个矩形线光栅。一个液氦冷却的掺铜锗探测器，其视角为5角秒，在一个15角分见方的视场中扫描。探测器信号调制一个同样安装在扫描平台上的辉光灯，通过同步扫描，在宝丽来胶片上形成一幅图像。当以辐射测量模式运行时，该设备会生成月球热模式的图像显示。当以成分研究模式运行时，仪器会将接收到的月球发射光谱与矿物标本的反射光谱进行比较。如果光谱相反，由此产生的最小信号会在地图上形成一个暗区，这意味着月球表面区域与矿物材料之间的成分相似。文中给出了几个图像示例。
