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Neutron tube design study for boron neutron capture therapy application

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7 Author(s)
Verbeke, J.M. ; Lawrence Berkeley Lab., CA, USA ; Lee, Y. ; Leung, K.N. ; Vujic, J.
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Radio-frequency (RF) driven ion sources are being developed in Lawrence Berkeley National Laboratory (LBNL) for sealed-accelerator-tube neutron generator application. By using a 5-cm-diameter RF-driven multicusp source H+ yields over 95% have been achieved. These experimental findings will enable one to develop compact neutron generators based on the D-D or D-T fusion reactions. In this new neutron generator, the ion source, the accelerator and the target are all housed in a sealed metal container without external pumping. Recent moderator design simulation studies have shown that 14 MeV neutrons could be moderated to therapeutically useful energy ranges for boron neutron capture therapy (BNCT). The dose near the center of the brain with optimized moderators is about 65% higher than the dose obtained from a typical neutron spectrum produced by the Brookhaven Medical Research Reactor (BMRR), and is comparable to the dose obtained by other accelerator-based neutron sources. With a 120 keV and 1 A deuteron beam, a treatment time of ~35 minutes is estimated for BNCT

Published in:

Particle Accelerator Conference, 1999. Proceedings of the 1999  (Volume:4 )

Date of Conference:

1999