Paper 13093-296
Paper 13093-296
The path toward 500μm depletion of AstroPix, a pixelated silicon HVCMOS sensor for space and EIC
On demand | Presenting live 19 June 2024 
Abstract
The precise reconstruction of Compton-scatter events is paramount for an imaging medium-energy gamma-ray telescope. The proposed AMEGO-X is enabled by a silicon tracker utilizing AstroPix chips - a pixelated silicon HVCMOS sensor novel for space use. To achieve science goals, each 500x500um2 pixel must be sensitive for energy deposits ranging from 25 -700 keV with an energy resolution of 5 keV at 122 keV (<10%). This is achieved through active depletion of the 500 um thick sensor, although this deep depletion poses an engineering and design challenge. This talk will summarize the current status of depletion measurements highlighting direct measurement with edge TCT laser scanning and the agreement with simulation. Future plans for further testing will also be identified.
Presenter
NASA Goddard Space Flight Ctr. (United States), NASA Postdoctoral Program Fellow (United States)
Dr. Amanda L Steinhebel received her PhD in 2021 at the University of Oregon as a member of the ATLAS collaboration at the LHC and SiD Consortium for the ILC working on dark matter searches and detector development. Her time at NASA Goddard Space Flight Center has been spent bridging the gap between high-energy collider physics and astrophysics through continued dark matter searches with space-based telescopes and instrumentation work to support future MeV telescope designs.