Abstract
A Princeton Instruments PI-LCX 1300 charge-coupled device (CCD) camera used for X-ray spectrum
measurements in laser-plasma experiments is calibrated using three radioactive sources and investigated with
the Monte Carlo code Geant4. The exposure level is controlled to make the CCD work in single photon counting
mode. A summation algorithm for obtaining accurate X-ray spectra is developed to reconstruct the X-ray
spectra, and the results show that the developed algorithm effectively reduces the low-energy tail caused by
split pixel events. The obtained CCD energy response shows good linearity. The detection efficiency curves
from both Monte Carlo simulations and the manufacturer agree well with the experimental results. This
consistency demonstrates that event losses in charge collection processes are negligible when the developed
summation algorithm of split pixel events is employed.
© 2013 Chinese Optics Letters
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