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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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DOE issues new NEPA rule and procedures—and accelerates DOME reactor testing
Meeting a deadline set in President Trump’s May 23 executive order “Reforming Nuclear Reactor Testing at the Department of Energy,” the DOE on June 30 updated information on its National Environmental Policy Act (NEPA) rulemaking and implementation procedures and published on its website an interim final rule that rescinds existing regulations alongside new implementing procedures.
Jeffrey E. Woollard, Thomas E. Blue, Nilendu Gupta, Reinhard A. Gahbauer
Nuclear Technology | Volume 115 | Number 1 | July 1996 | Pages 100-113
Technical Paper | Radiation Protection | doi.org/10.13182/NT96-A35279
Articles are hosted by Taylor and Francis Online.
Design parameters for an epithermal neutron field for an accelerator-based source of neutrons for boron neutron capture therapy are developed. The parameters that are developed incorporate predicted biological effects in patients’ heads. They are based on an energy-spectrum-dependent neutron normal-tissue relative biological effectiveness and the treatment planning methodology of Gahbauer and his coworkers, which includes the effects of dose fractionation. The neutron field optimization parameters are evaluated for two epithermal neutron fields resulting from an accelerator-based neutron source with two different moderator assemblies. For the two moderator assemblies and moderator thicknesses evaluated, the D2O-Li2CO3 moderator assembly is superior to the BeO-MgO moderator assembly. The absorbed-dose delivered to the tumor for the D2O-Li2CO3 moderator assembly is larger than that for the BeO-MgO moderator assembly for almost all tumor depths. The treatment times for the D2O-Li2CO3 moderator assembly are slightly longer than for the BeO-MgO moderator assembly. However, for a 10-mA proton current, the treatment times for both are reasonable.
