title: Single-shot calibration of soft x-ray mirrors using a sinusoidal transmission grating.
abstract: Calibration of soft x-ray diagnostics is a challenge due to the lack of laboratory-size calibrated sources. An in situ calibration method for newly developed x-ray mirrors, is presented. The x-ray source is produced by laser-matter interaction, and twin transmission gratings which create two identical dispersion lines. The gratings have a sinusoidal transmission function, which produces a highly precise high-orders free spectrum. An x-ray mirror interacts with one of the dispersion lines, and the mirror efficiency curve as a function of wavelength is extracted. Mirror efficiency shows good agreement with the literature, and evidence of water layer may justify the need of in situ calibration.
authors.affiliation: Department of Plasma, Soreq-NRC, Yavne 81800, Israel.
authors.forename: Z
authors.initials: Z
authors.lastname: Shpilman
authors.affiliation: Department of Plasma, Soreq-NRC, Yavne 81800, Israel.
authors.forename: Y
authors.initials: Y
authors.lastname: Ehrlich
authors.affiliation: Department of Plasma, Soreq-NRC, Yavne 81800, Israel.
authors.forename: S
authors.initials: S
authors.lastname: Maman
authors.affiliation: Department of Plasma, Soreq-NRC, Yavne 81800, Israel.
authors.forename: I
authors.initials: I
authors.lastname: Levy
authors.affiliation: Department of Plasma, Soreq-NRC, Yavne 81800, Israel.
authors.forename: T
authors.initials: T
authors.lastname: Shussman
authors.affiliation: Department of Plasma, Soreq-NRC, Yavne 81800, Israel.
authors.forename: G
authors.initials: G
authors.lastname: Oren
authors.affiliation: Department of Plasma, Soreq-NRC, Yavne 81800, Israel.
authors.forename: I
authors.initials: I
authors.lastname: Zakosky Nueberger
authors.affiliation: Department of Plasma, Soreq-NRC, Yavne 81800, Israel.
authors.forename: G
authors.initials: G
authors.lastname: Hurvitz