Abstract
A detailed comparison of the performance of uniform and graded multilayers as soft x-ray monochromators and normal incidence collectors has been made. In particular, the responses of flat depth-, and laterally graded multilayers to Al Kα radiation, λ = 8.34 Å, have been computed and compared with the corresponding uniform multilayer. Furthermore, the efficiency of graded and uniform multilayers as normal incidence x-ray collectors has been calculated in terms of effective areas for parabolic reflectors tuned to the O Kα line, λ = 23.7 Å. Finally, the effective areas of four strong solar emission lines in the 30–60 Å region have been computed for uniform multilayers. Normal incidence multilayer mirrors are well suited for spectroheliograph type of applications.
© 1983 Optical Society of America
Full Article | PDF ArticleMore Like This
Kwon Su Chon, Yoshiharu Namba, and Kwon-Ha Yoon
Appl. Opt. 45(19) 4609-4616 (2006)
J. F. Seely, M. P. Kowalski, W. R. Hunter, and G. Gutman
Appl. Opt. 35(22) 4408-4412 (1996)
Peter H. Mao, Fiona A. Harrison, David L. Windt, and Finn E. Christensen
Appl. Opt. 38(22) 4766-4775 (1999)