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Neutron tube design study for boron neutron capture therapy application

机译：硼中子俘获治疗应用的中子管设计研究

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Radio-frequency (RF) driven ion sources are being developed in Lawrence Berkeley211u001eNational Laboratory (LBNL) for sealed-acclerator-tube neutron generator 211u001eapplication. By using a 5-cm-diameter RF-driven multicusp source H (+) yields 211u001eover 95% have been achieved. These experimental findings will enable one to 211u001edevelop compact neutron generators based on the D-D or D-T fusion reactions. In 211u001ethis new neutron generator, the ion source, the accelerator and the target are 211u001eall housed in a sealed metal container without external pumping. Recent moderator 211u001edesign simulation studies have shown the 14 MeV neutrons could be moderated to 211u001etherapeutically useful energy ranges for boron neutron capture therapy (BNCT). 211u001eThe does near the center of the brain with optimized moderators is about 65% 211u001ehigher than the dose obtained from a typical neutron spectrum produced by the 211u001eBrookhaven Medical Research Reactor (BMRR), and is comparable to the dose 211u001eobtained by other accelerator-based neutron sources. With a 120 keV and 1 A 211u001edeuteron beam, a treatment time of approx. 85 minutes is estimated for BNCT.

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