title: Absolute detection efficiency of a ceramic-channel electron multiplier in the soft x-ray region.
abstract: The photon detection efficiency of a ceramic-channel electron multiplier (Ceratron) has been measured on an absolute scale from 20 to 78 A using monochromatized synchrotron radiation. The measured efficiency was several percent at these wavelengths. Its wavelength dependence shows a gradually increasing trend for wavelengths longer than 28 A. The efficiency showed two maxima at -23 and 27 A, which are presumed to originate from the O-K absorption and the Ti-L absorption, respectively. Optimization of the detection efficiency is discussed.
authors.forename: I H
authors.initials: IH
authors.lastname: Suzuki
authors.forename: N
authors.initials: N
authors.lastname: Saito