X‐ray imaging using storage phosphors is an increasingly popular method of taking data on synchrotron x‐ray stations. There are now commercially available scanners, which are being used at Daresbury and most other synchrotron light facilities worldwide. Although the basic principle behind the x‐ray stimulation and the subsequent readout of the phosphor has been known for a number of years, the details of the physical mechanisms have not been widely published and appear to be incompletely understood. Users of image plate systems might be surprised to learn of some of the observations made by the Daresbury Detector Development Group during the assessment of the storage phosphor technique as applied to x‐ray diffraction on the synchrotron. We present intriguing examples of yet unexplained phenomena which may need to be taken into account for experiments with very low experimental signal‐to‐noise ratios in their images. Possible future developments in image plate phosphors are also discussed.
[1]
G. Lange,et al.
Physical model of photostimulated luminescence of x‐ray irradiated BaFBr:Eu2+
,
1988
.
[2]
S. P. Keller,et al.
Studies on Some Infrared Stimulable Phosphors
,
1957
.
[3]
A. Winnacker,et al.
Photostimulation mechanisms of x‐ray‐irradiated RbBr:Tl
,
1989
.
[4]
F. Seitz.
An interpretation of crystal luminescence
,
1939
.
[5]
Synthesis and characterization of some PSL phosphors
,
1989
.
[6]
J. W. Campbell,et al.
Millisecond X-ray diffraction and the first electron density map from Laue photographs of a protein crystal
,
1987,
Nature.
[7]
Y. Amemiya.
Imaging plate ‐ X‐ray area detector based on photostimulable phosphor
,
1990
.