  The Silicon Charge Detector (SCD) is a subdetector of the High Energy Cosmic
Radiation Detection payload. The dynamic range of the silicon microstrip
detector can be extended by the capacitive coupling effect, which is related to
the interstrip capacitance and the coupling capacitance. A detector prototype
with several sets of parameters was designed and tested in the ion beams at the
CERN Super Proton Synchrotron. The capacitive coupling fractions with readout
strip and floating strip incidences were studied using the beam test data and
SPICE simulation.
