美国国家标准技术研究院将其回旋加速器紫外辐射装置升级 ,现名 Surf ,比作为1 974～ 1 998年间国家辐射标准的原装置在精度、纯度和功率方面都要好。该院称 ,改良装置的 1 3束线将对一系列光子学应用有利 ,包括用于半导体光刻的反射镜的制造、卫星搭载的环境传感器的校准等。S The National Institute of Standards and Technology upgraded its cyclotron ultraviolet radiation device, now Surf, to be better than the original device for national radiation standards between 1974 and 1998 in accuracy, purity and power. The hospital claims that the 13-beam line of retrofit devices will benefit a range of photonics applications, including the manufacture of mirrors for semiconductor lithography and the calibration of satellite-mounted environmental sensors. S