TY - GEN AU - WILKINSON,K J R AU - TUCK,J L AU - RETTIE,R S TI - A 16-MeV. betatron SN - 0028-0836 PY - 2008///1020 KW - Particle Accelerators N1 - Publication Type: Journal Article UR - https://doi.org/10.1038/161472a0 ER -