First-principles response simulation of wide-gap CdTe-DSDs for the FOXSI solar sounding rocket experimentShunsaku Nagasawa, Takahiro Minami, Tadayuki Takahashi, Shin Watanabehttps://arxiv.org/abs/2509.00738
First-principles response simulation of wide-gap CdTe-DSDs for the FOXSI solar sounding rocket experimentWe have developed a wide-gap CdTe double-sided strip detector (CdTe-DSD) for the fourth and fifth flights of the Focusing Optics X-ray Solar Imager sounding rocket experiment (FOXSI-4/FOXSI-5). This detector features a 30 um strip width and a variable gap width from 30 um to 70 um, enabling position resolution finer than the strip pitch by inducing charge sharing across adjacent strip electrodes and utilizing this shared energy information for position reconstruction. However, this wide-gap con…