McCord T B, Frankston M J
Appl Opt. 1975 Jun 1;14(6):1437-46. doi: 10.1364/AO.14.001437.
We have used silicon vidicon tubes in a two-dimensional integrating imaging device at the telescope to obtain photometric images of astronomical objects. In this article we report on the performance of the imaging system we have experienced under actual observing conditions. The imaging system and the procedures we have devised to use it are described. Exposures reproduce to better than 0.05% of full scale intensity for each picture element. The response of the entire imaging system is linear with gamma = 1 for at least nearly 5 orders of magnitude to within at least 0.44% of full scale intensity and probably much better. Images made through the telescope of extended sources agree photometrically with photomultiplier measurements to about 1%. Photometry of stars reproduces to better than 0.5%.
我们在望远镜的二维积分成像设备中使用了硅视像管，以获取天体的光度图像。在本文中，我们报告了我们在实际观测条件下所经历的成像系统的性能。描述了成像系统以及我们设计的使用该系统的程序。对于每个像素，曝光的再现精度优于满量程强度的0.05%。整个成像系统的响应在至少近5个数量级内呈线性，伽马值为1，误差在满量程强度的至少0.44%以内，可能更好。通过望远镜对扩展源拍摄的图像在光度测量上与光电倍增管测量结果的一致性约为1%。恒星的光度测量再现精度优于0.5%。
