Sensitivity of an image plate system in the XUV (60eV<E<900 eV)

Sensitivity of an image plate system in the XUV (60 eV l E l 900 eV) B.H. Fai|or,q=' E.M. Gu||ikson,” N.G. Link,” J.C. Riordan” and B.C. Wilson“ qL-3 Applied Technologies, Pulse Sciences, Inc., 2700 Merced St., San Leandro, CA 94577, U.S.A. ’’Lawrence Berkeley National Laboratory, 1 Cyclotron Roaa', Berkeley, CA 94720, U.S.A. ‘Defense Threat Reduction Agency, Fort Belvoir; VA 22060-6201, U.S.A. AB STRACT: Phosphor imaging plates (IPs) have been calibrated and proven useful for quantitative x-ray imaging in the 1 to over 1000 keV energy range. In this paper we report on calibration measurements made at XUV energies in the 60 to 900 eV energy range using beamline 6.3.2 at the Advanced Light Source at Lawrence Berkeley National Laboratory. We measured a sensitivity of ~ 25 :l: 15 counts/pJ over the stated energy range which is compatible with the sensitivity of Si photodiodes that are used for time-resolved measurements. Our measurements at 900 eV are consistent with the measurements made by Meadowcroft et al. at ~ 1 keV.