Working Groups

About the GRID, LATTICE, Microbeam and FLASH Radiation Therapy Working Groups

The Radiosurgery Society® (RSS) has made a collaborative effort to create three Working Groups (Clinical, Physics and Biology) to address the clinical and scientific facets of GRID, LATTICE, Microbeam and FLASH radiation therapies, with the goal of conducting research to advance clinical treatments for patients. Members of the GRID, LATTICE, Microbeam and FLASH Working Groups are experts in the fields of radiobiology, medical physics and radiation oncology who work collectively to understand the biology, technical and physical parameters, and clinical practice of these emerging technologies.


  • Soren Bentzen, PhD
    University of Maryland, Baltimore, MD
  • Robert J. Griffin, PhD
    University of Arkansas for Medical Sciences, Little Rock, AR
  • Charles Limoli, PhD
    University of California, Irvine, Irvine, CA


  • Xiaodong Wu, PhD
    SPHIC, Shanghai, China
  • Hualin Zhang, PhD
    University of Southern California, Los Angeles, CA


  • Sha Chang, PhD, FAAPM, DABR
    University of North Carolina School of Medicine, Chapel Hill, NC


  • Nina A. Mayr, MD, FASTRO, FAAAS
    University of Washington, Seattle, WA
  • Charles B. Simone, II, MD, FACRO
    New York Proton Center, New York, NY


  • Majid M. Mohiuddin, MD
    Advocate Lutheran General Hospital, Park Ridge, IL
  • James W. "JW" Snider, III, MD
    South Florida Proton Therapy Institute, Delray Beach, FL


Working Group Publications

An International Consensus on the Design of Prospective Clinical–Translational Trials in Spatially Fractionated Radiation Therapy for Advanced Gynecologic Cancer

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Tribulations and Trials: The Implementation of Biologically Dependent Radiation Therapy Technologies

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An International Consensus on the Design of Prospective Clinical−Translational Trials in Spatially Fractionated Radiation Therapy

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Radiation Research Special Issue: New Beam Delivery Modalities are Shaping the Future of Radiotherapy

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Implementation of New Biology-Based Radiation Therapy Technology: When Is It Ready So Perfect Makes Practice?

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Understanding High-Dose, Ultra-High Dose-Rate and, Spatially Fractionated Radiotherapy

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Symposia & Workshops


The Working Group's next symposium will take place on March 22, 2023, just prior to the 2023 RSS Scientific Meeting at the Loews Sapphire Falls at Universal Orlando in Orlando, FL.

Advancements in GRID, LATTICE, Microbeam and FLASH Symposium - 2023

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The Working Group's most recent symposium took place on March 3, 2022, just prior to the 2022 RSS Scientific Meeting in Carlsbad, CA.

Advancements in GRID, LATTICE and FLASH Radiotherapy Symposium - 2022

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The RSS, in collaboration with the National Institutes of Health, has hosted two GRID, LATTICE, Microbeam and FLASH Radiation Therapy Workshops. Abstracts from both workshops are available to the public and videos and presentations are available to RSS Members. Use the links below to find out more.

RSS GRID, LATTICE, FLASH and Microbeam Radiation Therapies 2020 Virtual Session

Available FREE to members.

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Workshop on Understanding High-Dose, Ultra-Dose-Rate and Spatial Fractionated Radiotherapy

August 21, 2018

Program Coordinator

Wendy Burman

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