Thank you for your answers.
Since there is free H in the chamber, what is the relative probability of a p-p fusion compared to p-B11? I haven’t found any cross section data for these yet. Is there any neutron yield?
Also, as I understand the reaction, it is
p + B11 -> C -> 3He + 8.3MeV
Not sure if the gammma number is right but is it actually emitted in the fusion to C? Is any energy released in the disintegration to He?