TY - RPRT TI - ROAD: ROtational direct Aperture optimization with a Decoupled ring-collimator for FLASH radiotherapy AU - Lyu, Qihui AU - Neph, Ryan (ORCID:0000000281766723) AU - O’Connor, Daniel (ORCID:0000000173781125) AU - Ruan, Dan (ORCID:0000000334007684) AU - Boucher, Salime AU - Sheng, Ke PY - 2021 DO - 10.1088/1361-6560/abcbd0 UR - https://www.osti.gov/biblio/1852360 ID - 1852360 ER -