# Humza Nusrat I'm a medical physicist. I build AI agents that plan radiation treatment, and I check their work. - Henry Ford Cancer, Detroit - Assistant Professor, Michigan State University - Email: hi@humza.ai - Web: https://humza.ai ## About Radiotherapy is full of systems that are powerful, fragile and deeply human. I try to make them safer without removing the judgment. I'm a board-certified medical physicist at Henry Ford Health, where I work in MR-guided adaptive therapy and radiosurgery, and an assistant professor at Michigan State University. Before that I was a staff physicist at Sunnybrook in Toronto. My PhD was in radiation dosimetry and detector development. Today most of my research asks a narrow question: when an AI agent makes a treatment plan, which of its failures need a better model, and which can be fixed with a clearer interface or a plain check? ## Research ### SAGE: AI agents that plan radiotherapy Language-model agents that operate the Eclipse planning system: they adjust objectives, read the recalculated dose, and try again, with a physicist reviewing every plan. Tested on prostate and on 41 radiosurgery cases. Status: Two papers, 2026. [Prostate paper](https://doi.org/10.1002/mp.70654) · [Radiosurgery paper](https://doi.org/10.1038/s41598-026-73885-x) ### Virtual reality for radiation oncology training Simulators that let trainees practise linac safety and HDR prostate brachytherapy before they do it for real. Status: Ongoing. [Brachytherapy simulator paper](https://doi.org/10.1016/j.brachy.2026.05.006) ### Measuring dose inside an MRI MR-linacs image the patient while treating, but the magnet changes how dose detectors respond. We built an MR-compatible water calorimeter and measured absorbed dose in an MR-linac directly. Status: Published 2020. [Calorimetry paper](https://doi.org/10.1002/mp.14468) · [Calorimeter validation](https://doi.org/10.1002/mp.14448) ### FLASH radiotherapy FLASH delivers a full dose in under a second, which may spare healthy tissue but overwhelms most detectors. I worked on ultra-high dose-rate electron beams and scintillating detectors that can keep up. Status: PhD work. [Scintillator paper](https://doi.org/10.1002/mp.13691) ## Selected papers - 2026. [Stereotactic radiosurgery plan optimization with a human-in-the-loop reasoning large language model agent](https://doi.org/10.1038/s41598-026-73885-x). *Scientific Reports*. First author. - 2026. [Local large language model-guided optimization for prostate radiotherapy planning](https://doi.org/10.1002/mp.70654). *Medical Physics 53(9), e70654*. First author. - 2026. [Development and pilot evaluation of a virtual reality simulator for HDR prostate brachytherapy](https://doi.org/10.1016/j.brachy.2026.05.006). *Brachytherapy 25(5), 728–735*. Senior author. - 2020. [Water calorimetry in MR-linac: direct measurement of absorbed dose and determination of chamber kQ,B](https://doi.org/10.1002/mp.14468). *Medical Physics 47(12), 6458–6469*. Second author. Sylvia Fedoruk Prize. - 2019. [Quantifying the impact of lead doping on plastic scintillator response to radiation](https://doi.org/10.1002/mp.13691). *Medical Physics 46(9), 4215–4223*. First author. - 2018. [Innovations in Calorimetry](https://novapublishers.com/shop/recent-advancements-and-applications-in-dosimetry/). *Chapter 7 in Recent Advancements and Applications in Dosimetry, ed. Maria F. Chan. Nova Science Publishers*. First author. Full list: [Google Scholar](https://scholar.google.com/citations?user=yMey5EQAAAAJ&hl=en) ## Tools I've built - [Dose Oracle](https://hnusrat1.github.io/dose-oracle/): 150+ normal-tissue dose limits from QUANTEC, HyTEC, PENTEC and UK SABR, with BED and EQD2 converted for you. - [Protocol Compass](https://hnusrat1.github.io/protocol-compass/): SBRT and SRS protocols for lung, brain, spine, prostate and liver in one place. - [RadOnc.AI](https://radonc-ai.vercel.app): Hands-on lessons for clinicians learning to use language models safely. - [Inverse-Square Explorer](https://hnusrat1.github.io/inverse-square/): Why stepping back from a source cuts your dose so quickly, shown with moving particles. ## Side projects - [The Walled Web](https://walledweb.com): Which websites block AI? A tracker that checks every day how sites treat AI crawlers, search bots and assistants, and shows the answer in plain words. - [Crucible](https://crucible-ftx9.onrender.com): Language models debate each other, switch sides, and are scored by a panel of judges. The demo is on a free server and can take a minute to wake up. ## Path - 2025 to present: Assistant Professor, Michigan State University. Department of Radiology, College of Human Medicine - 2024 to present: Senior Staff Physicist, Henry Ford Cancer, Detroit. MR-guided adaptive therapy and radiosurgery. - 2021 – 2024: Staff Medical Physicist, Sunnybrook Health Sciences Centre, Toronto. IMRT QA and reference dosimetry lead. - 2019 – 2021: Medical Physics Residency, University of Toronto. CAMPEP-accredited. - 2014 – 2019: PhD, Biomedical Physics, Toronto Metropolitan University. Radiation dosimetry and detector development. ## Recognition - 2026: Dr. Margot C. LaPointe Early Career Investigator Award. Henry Ford Health, for the SAGE radiosurgery research. - 2023: Global Rising Star in Medical Physics. American Association of Physicists in Medicine, for virtual and augmented reality research. - 2021: Sylvia Fedoruk Prize. Best paper in Canadian medical physics, for MR-linac water calorimetry. - 2018: Anthony J. MacKay Award. Best student paper, Canadian Radiation Protection Association. - 2014, 2017: TA of the Year. Toronto Metropolitan University. - 2009: TD Canada Trust Scholarship. Awarded to 20 of more than 7,000 applicants across Canada. ## Contact hi@humza.ai · [Google Scholar](https://scholar.google.com/citations?user=yMey5EQAAAAJ&hl=en) · [LinkedIn](https://www.linkedin.com/in/hnusrat/) · [X](https://x.com/hznus) · [GitHub](https://github.com/hnusrat1) --- Last updated 2026-10-20.