Efficiency of a grazing-incidence off-plane grating in the soft-x-ray region.
Efficiency measurements of a grazing-incidence diffraction grating in the off-plane mount were performed using polarized synchrotron radiation. The grating had 5000 grooves/mm, an effective blaze angle of 14 degrees, and was gold coated. The efficiencies in the two polarization orientations (TM and TE) were measured in the 1.5-5.0 nm wavelength range and were compared with the efficiencies calculated using the PCGrate-SX code. The TM and TE efficiencies differ, offering the possibility of performing unique science studies of astrophysical, solar, and laboratory sources by exploiting the polarization sensitivity of the off-plane grating.
Space Science Division, U.S. Naval Research Laboratory, Washington, D.C. 20375, USA. john.seely@nrl.navy.mil
J F
JF
Seely
L I
LI
Goray
Benjawan
B
Kjornrattanawanich
J M
JM
Laming
G E
GE
Holland
K A
KA
Flanagan
R K
RK
Heilmann
C H
CH
Chang
M L
ML
Schattenburg
A P
AP
Rasmussen