Decay scheme of the Si28 nucleus

Antoufiev, Y.P.; El-Nadi, L.M.; Darwish, D.A.E.; Badawy, O. E.; Sorokin, P.V.

doi:10.1016/0029-5582(63)90558-3

Cited by 19 publications

(1 citation statement)

References 12 publications

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“…This reaction has many resonances at low proton energies and produces ␥ rays in the energy range from a few keV to ϳ10 MeV. 30 In particular, there is a resonance at E p ϭ992 keV that produces ϳ10 Ϫ9 ␥ rays per incident proton. 31 However, the total contribution of this reaction was estimated to be less than a few percent of the average brain dose.…”

Section: Significance Of ␥ Production In Aluminummentioning

confidence: 99%

Designing accelerator‐based epithermal neutron beams for boron neutron capture therapy

et al. 1998

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The 7Li(p,n)7Be reaction has been investigated as an accelerator-driven neutron source for proton energies between 2.1 and 2.6 MeV. Epithermal neutron beams shaped by three moderator materials, Al/AlF3, 7LiF, and D2O, have been analyzed and their usefulness for boron neutron capture therapy (BNCT) treatments evaluated. Radiation transport through the moderator assembly has been simulated with the Monte Carlo N-particle code (MCNP). Fluence and dose distributions in a head phantom were calculated using BNCT treatment planning software. Depth-dose distributions and treatment times were studied as a function of proton beam energy and moderator thickness. It was found that an accelerator-based neutron source with Al/AlF3 or 7LiF as moderator material can produce depth-dose distributions superior to those calculated for a previously published neutron beam design for the Brookhaven Medical Research Reactor, achieving up to approximately 50% higher doses near the midline of the brain. For a single beam treatment, a proton beam current of 20 mA, and a 7LiF moderator, the treatment time was estimated to be about 40 min. The tumor dose deposited at a depth of 8 cm was calculated to be about 21 Gy-Eq.

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Section: Significance Of ␥ Production In Aluminummentioning

confidence: 99%