Photonics

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A 65-nm CMOS Machine-Learning-Enhanced Bandwidth-Efficient LiDAR

A 65-nm CMOS Machine-Learning-Enhanced Bandwidth-Efficient LiDAR 150 150
Author(s): Pooya Poolad, Foad Arvani, Bahaa Radi, Ping-Hsuan Hsieh, Tony Chan Carusone

Abstract:

We present a proof-of-concept light detection and ranging (LiDAR) signal processing architecture that integrates a machine-learning-enhanced processing unit (PU) with on-chip time-to-digital converters (TDCs) to reduce bandwidth and memory requirements in SPAD-based direct time-of-flight (dToF) systems. The proposed architecture fits a Gaussian mixture model (GMM) to photon arrival time distributions …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 11
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3652972
Publisher: IEEE

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Single-X-Ray Sensitive Energy-Binning Dosimeter for Closed-Loop Cancer External-Beam Radiotherapy

Single-X-Ray Sensitive Energy-Binning Dosimeter for Closed-Loop Cancer External-Beam Radiotherapy 150 150
Author(s): Rahul Lall, Kyoungtae Lee, Adam Cunha, Rebecca Abergel, Youngho Seo, Ali M. Niknejad, Mekhail Anwar

Abstract:

X-ray radiation dose delivered during cancer external-beam radiotherapy (EBRT) is nonlinear with the biological effect imparted to cancer cells and neighboring healthy tissues. This oftentimes leads to insufficient damage to cancer cells and excessive damage to the surrounding healthy tissues, both increasing toxicity and the risk of cancer recurrence later …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1423 – 1436
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3529848
Publisher: IEEE

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