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Meeting MS&T21: Materials Science & Technology
Symposium Research Lightning Talks
Presentation Title Germanium Photodiodes for Capture of High Energy X-rays
Author(s) Joseph G. Wood, Klaus van Benthem, Charles Hunt
On-Site Speaker (Planned) Joseph G. Wood
Abstract Scope Despite recent advances in many alternative energy fields, fusion energy remains the veritable holy grail of cheap stable clean energy. The primary goal of the National Ignition Facility at Lawrence Livermore National Laboratory is to achieve stable fusion. While fusion has been achieved, significant optimization and improvements still need to be made. In order to improve operating parameters, a complete understanding of what occurs within the reactor and within the hohlraum is necessary. Due to the forces and time scales involved, current detectors are insufficient at fully capturing the fusion events. To address this, we seek to develop photodiode detectors composed of germanium. Compared to silicon, germanium offers superior x-ray stopping power and superior charge carrier mobilities, allowing for thinner and faster diodes. In our work we develop a model of the etching behavior of germanium, both doped and undoped, and then establish a compatible fabrication procedure.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Direct Ink Writing with Highly Loaded Aqueous Silicon Carbide Suspensions
Germanium Photodiodes for Capture of High Energy X-rays
Joining of Silicon Carbide for High-temperature Applications
Mechanical behavior of bonded-PDMS for biological payloads in microgravity
Perfecting Steel Processing in the 21st Century
Refractories for the Food Industry
Superalloy Development for Specific Applications: A Low CTE Alloy
Using Unsupervised Learning to Understand Thin Film Growth
Will Low-cost Ceramic Water Filters Really Work?

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