SH43B-2455
Hard X-ray Detector Calibrations for the FOXSI Sounding Rocket
Thursday, 17 December 2015
Poster Hall (Moscone South)
Andres Lopez1,2, Lindsay Glesener1, Juan Camilo Buitrago Casas3, Raymond Han4, Shin-nosuke Ishikawa5, Steven Christe6 and Sam Krucker1, (1)University of California Berkeley, Berkeley, CA, United States, (2)Organization Not Listed, Washington, DC, United States, (3)Universidad Nacional de Colombia, Observatorio Astronómico Nacional, Bogota, Colombia, (4)University of Chicago, Chicago, IL, United States, (5)National Astronomical Observatory, Mitaka, Japan, (6)NASA GSFC, Greenbelt, MD, United States
Abstract:
In the study of high-energy solar flares, detailed X-ray images and spectra of the Sun are required. The Focusing Optics X-ray Solar Imager (FOXSI) sounding rocket experiment is used to test direct-focusing X-ray telescopes and Double-sided Silicon Strip Detectors (DSSD) for solar flare study and to further understand coronal heating. The measurement of active region differential emission measures, flare temperatures, and possible quiet-Sun emission requires a precisely calibrated spectral response. This poster describes recent updates in the calibration of FOXSI's DSSDs based on new calibration tests that were performed after the second flight. The gain for each strip was recalculated using additional radioactive sources. Additionally, the varying strip sensitivity across the detectors was investigated and based on these measurements, the flight images were flatfielded. These improvements lead to more precise X-ray data for future FOXSI flights and show promise for these new technologies in imaging the Sun.
