Li7 Be8 / B7 Reakton
Zu beachten ist das Tal bei 2.2 MeV
The threshold of the Li7(p,n)Be7 reaction is at 1.882 MeV. (Bair 1952) It is possible to accelerate protons to this energy with the existing pole pieces in place. The existing pole pieces have an 8 cm radius and a separation gap of 1.25 inches. By equations (4b) and (5), this geometry and field strength is capable of accelerating protons to a maximum kinetic energy of 1.96 MeV. It is possible to acquire lower energy particles by positioning the detector at a smaller radius. A detector positioned 7.34 centimeters from the center of the accelerator will intercept particles with energies of approximately 1.88 MeV in the presence of a 2.7 T magnetic field.