Speaker
Description
Recent developments in X-ray technology have highlighted a significant gap between the advancements in X-ray facility capabilities and the corresponding limitations in detector technologies, especially in the soft X-ray energy range (200 eV to 2 keV). While hybrid pixel detectors are the standard for higher-energy X-ray applications (2–20 keV), their implementation in the soft X-ray regime remains underexplored despite their high frame rates, dynamic range, and excellent signal-to-noise ratios. Low Gain Avalanche Diodes (LGADs), characterized by moderate internal gains in the range of 5–10, have emerged as a promising solution for addressing the signal-to-noise ratio limitations inherent in soft X-ray detection. However, several challenges remain in optimizing LGAD technology for this lower energy range.
At Brookhaven National Laboratory, we are developing and optimizing the LGAD sensor technology for hybrid detectors targeting soft X-rays. This presentation will introduce the challenges and progress of our Deep Junction LGAD development. We will discuss optimization strategies and present results from recently developed sensors. Furthermore, we will report on the currently achievable performance and outline future improvements.