Figure cont.3 : Stability of SMD Response.
This comparison of the SMD-recorded spectrum of the Cu
anode at 981113 and 980106 shows little indication for
evolution of the SMD response. Note that the later
data set (dashed line) has more O-K present -- likely
leading to the slight reduction of the Cu line
relative to the high-energy continuum seen in the ratio plot.
The anode was cleaned before the 981006 test - the
is even better!
ddIDL> @sxd_contamination ; edited for det_sel=SMD data_sel=6,7