Spectrometer for Temperature and Composition for the Focusing Optics X-ray Solar Imager - FOXSI mission

Spectrometer for Temperature and Composition (STC) will be a small soft x-ray spectrometer and will monitor solar X-ray flux between 3 keV and 15 with 0.15 keV energy resolution. The data collected by STC will complement the main FOXSI instrument measurements and additionally allow temperature and emission measure analysis of small flares as well as a quiet Sun. The instrument will provide fast solar X-ray spectroscopy in the entire flux intensity range, variable seven order in intensity form quiet solar conditions to strongest flares. The exceptionally wide dynamic range of this instrument as well as its high spectral and temporal resolution and wide plasma temperature coverage will result in unprecedented measurements, crucial for energy release processes and space weather monitoring.