Work

A 0.05 mm3 diode-based single charged-particle real-time radiation detector for electron radiotherapy

Year: 2025

Type: article

Abstract: Real-time radiation monitoring at the single-particle level is an unmet need for electron radiotherapy, especially for dose deposition to targets in motion or critical OARs. We have developed a first-in-class CMOS-based 0.05 mm 3 single electron sensitive detector. The chiplet integrates all the requisite electronics. The functionality of the system is verified under 6 and 9 MeV clinical electron beams. Percentage depth vs. pulse-width curves for 6 and 9 MeV beams are measured and verified using Monte-Carlo simulations. The proposed system has the potential to enhance the electron radiotherapy quality and safety, providing real-time dosimetry from multiple sites simultaneously.

Source: Physics and Imaging in Radiation Oncology

DOI: 10.1016/j.phro.2025.100762

Authors: Kyoungtae Lee, Rahul Lall, Michel M. Maharbiz, Mekhail Anwar

Institutions: University of California, San Francisco, Daegu Gyeongbuk Institute of Science and Technology, University of California, Berkeley

Language: English

Topic: Advanced Radiotherapy Techniques

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,980