Ni. Chkhalo et al., THE STATION FOR DETECTOR CALIBRATION IN THE SOFT-X-RAY RANGE AT THE VEPP-2M STORAGE-RING, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 359(1-2), 1995, pp. 440-444
The experimental station for detector calibration with synchrotron rad
iation (SR) in the photon energy range of 0.1-1 keV has been designed
and constructed at the storage ring VEPP-2M. SR from a positron beam i
s extracted from a bending magnet of the storage ring and monochromati
zed by a multilayer mirror. The first calibration procedures are to us
e the good calculability of the SR photon flux and the measured parame
ters of the multilayer monochromator when the calibration is performed
in a monochromatic beam, or the reconstruction of a detector spectral
sensitivity from detector signals measured in ''white'' SR beam throu
gh a set of calibrated absorbing filters and at different positron ene
rgies. A description of the station, the estimations of the calibratio
n uncertainties and preliminary results of the monochromator testing a
re presented.