@mastersthesis{MS-Thesis_1998_Folkert, address = {Cambridge, MA, USA}, author = {Folkert, Michael Ryan}, month = {June}, school = {Massachusetts Institute of Technology}, title = {{Monte Carlo Simulation of Neutron Shielding for Proton Therapy Facilities}}, url = {http://hdl.handle.net/1721.1/50492}, year = {1998} }