Figure 2: Modulation curves from the SXRP-EM calibration. The curves are reproductions of those previously seen in Silver et al. (1994).

Upper left: Modulation curve for the Lithium polarimeter using a polarized beam. The amplitude of the 2(omega) modulation is 0.70 (+/- 0.01).

Upper right: Modulation curve for the Lithium polarimeter using an unpolarized beam. The amplitude of the 2(omega) modulation is 0.0008 (+0.006, -0.0008).

Lower left: Modulation curve for the Graphite polarimeter using a polarized beam. The amplitude of the 2(omega) modulation is 0.960 (+/- 0.003).

Lower right: Modulation curve for the Graphite polarimeter using an unpolarized beam. The amplitude of the 2(omega) modulation is 0.03 (+/- 0.01).