Phonon-mediated superconducting transition-edge sensor x-ray detectors for use in astronomy
Society of Photo-Optical Instrumentation Engineers (SPIE)
Superconducting Transition-Edge Sensors (TESs) are generating a great deal of interest in the areas of x-ray astrophysics and space science, particularly to develop them as large-array, imaging x-ray spectrometers. We are developing a novel concept that is based on position-sensitive macro-pixels placing TESs on the backside of a silicon or germanium absorber. Each x-ray absorbed will be position (X/δX and Y/δY ~ 100) and energy (E/δE ~ 1000) resolved via four distributed TES readouts. In the future, combining such macropixels with advances in multiplexing could lead to 30 by 30 arrays of close-packed macro-pixels equivalent to imaging instruments of 10 megapixels or more. We report on our progress to date and discuss its application to a plausible solar satellite mission and plans for future development.
Leman, S. W., Martinez-Galarce, D. S., Brink, P. L., Cabrera, B., Castle, J. P., Morse, K., Stern, R. A., Tomada, A., & Young, B. A. (2004). Phonon-mediated superconducting transition-edge sensor X-ray detectors for use in astronomy. High-Energy Detectors in Astronomy, 5501, 135–144. https://doi.org/10.1117/12.551982