Ka. Sjoland et al., SUBCELLULAR ANALYSIS OF BORON WITH A NUCLEAR MICROPROBE, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 129(1), 1997, pp. 101-105
The boron distribution in cells from a rat brain, into which a boron c
ompound (BOPP) had been injected in the context of Boron Neutron Captu
re Therapy (BNCT), was analyzed with a nuclear microprobe by Nuclear R
eaction Analysis. The B-11(p,alpha)Be reaction was utilized at the re
sonance at 0.63 MeV. Boron images and Scanning Transmission Ion Micros
copy (STIM) images were recorded and evaluated by various methods. The
sample preparation was straightforward and introduced only a minimum
of steps which could potentially interfere with the result. Methods to
to compare different boron compounds for BNCT are suggested. The boro
n was distributed fairly evenly in the cells. The average boron concen
tration was about 7 ppm dry weight, and the variation over individual
cells small.