Measured Neutron Spectra and Dose Equivalents From a Mevion Single-Room, Passively Scattered Proton System Used for Craniospinal Irradiation. - Howell, Rebecca M.; Burgett, Eric A.; Isaacs, Daniel; Price Hedrick, Samantha G.; Reilly, Michael P.; Rankine, Leith J.; Grantham, Kevin K.; Perkins, Stephanie; Klein, Eric E. (International Journal of Radiation Oncology, Biology, Physics, 2016)