TY  - RPRT
TI  - Electron beam effective source surface distances for a high energy linear accelerator.
AU  - S C Sharma
AU  - M W Johnson
PY  - 1991
DO  - 10.1016/0958-3947(91)90048-7
UR  - https://pubmed.ncbi.nlm.nih.gov/1907830/
ID  - 1907830
ER  -