Quantitative imaging of 478-keV prompt gamma rays from boron neutron capture reactions
arXiv:2509.00435 · doi:10.1038/s41598-025-14212-8
Abstract
The accurate imaging and quantitative measurement of 478-keV prompt gamma rays are critical for advancing boron neutron capture therapy (BNCT), a promising cancer treatment. Although numerical simulations have indicated that such measurements are feasible, their practical application has proven challenging. This study introduces a gamma-ray imaging detector designed specifically for precise BNCT measurements. Using boron-rich phantom samples, we successfully imaged 478-keV gamma rays and established a linear correlation between gamma-ray production and boron concentration. Furthermore, applying this technique in a recognized BNCT treatment facility demonstrated the detector's effectiveness in monitoring boron dose distribution during neutron irradiation, both in pretreatment diagnostics and throughout the treatment process.
arXiv comment35 pages, 8 figures, 2 tables
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