Ohashi Hayato, Yatsurugi Junji, Sakaue Hiroyuki A, Nakamura Nobuyuki
Institute for Laser Science, The University of Electro-Communications, Chofu, Tokyo, Japan.
Rev Sci Instrum. 2011 Aug;82(8):083103. doi: 10.1063/1.3618686.
An extreme ultraviolet spectrometer has been developed for spectroscopic studies of highly charged ions with an electron beam ion trap. It has a slit-less configuration with a spherical varied-line-spacing grating that provides a flat focal plane for grazing incidence light. Alternative use of two different gratings enables us to cover the wavelength range 1-25 nm. Test observations with the Tokyo electron beam ion trap demonstrate the high performance of the present spectrometer such as a resolving power of above 1000.
已开发出一种极紫外光谱仪，用于利用电子束离子阱对高电荷离子进行光谱研究。它采用无狭缝配置，配有球面变线距光栅，可为掠入射光提供一个平坦的焦平面。交替使用两种不同的光栅使我们能够覆盖1 - 25纳米的波长范围。利用东京电子束离子阱进行的测试观测证明了该光谱仪的高性能，例如分辨能力超过1000。
