TY - RPRT TI - Electron energy constancy verification using a double-wedge phantom. AU - Derek M Wells AU - Philip J Picco AU - Will Ansbacher PY - 2003 DO - 10.1120/jacmp.v4i3.2516 UR - https://pubmed.ncbi.nlm.nih.gov/12841790/ ID - 12841790 ER -