Relative detection efficiency of back- and front-illuminated charge-coupled device cameras for X-rays between 1 keV and 18 keV.
High-resolution x-ray measurements were performed with a von Hamos-type bent crystal spectrometer using for the detection of the diffracted photons either a back-illuminated charge-coupled device (CCD) camera or a front-illuminated one. For each CCD the main x-ray emission lines (e.g., Kalpha, Kbeta, Lalpha, and Lbeta) of a variety of elements were measured in order to probe the performances of the two detectors between 1 and 18 keV. From the observed x-ray lines the linearity of the energy response, the noise level, the energy resolution, and the quantum efficiency ratio of the two CCDs were determined.
Szlachetko
J
J
Department of Physics, University of Fribourg, CH-1700 Fribourg, Switzerland. jakub.szlachetko@unifr.ch
Dousse
J-Cl
JC
Hoszowska
J
J
Berset
M
M
Cao
W
W
Szlachetko
M
M
Kavcic
M
M