The Moscow Meson Factory linear accelerator (linac) is used in the production of
particular isotopes for medical use.
Strontium‑82 is created by bombarding rubidium‑85 with protons.
Complete the nuclear equation to show this process.
The Moscow Meson Factory accelerates protons up to energies of 160 MeV before
colliding them into rubidium.
The first 100 MeV is supplied using a linac with drift tubes, as shown.
Explain how the linac accelerates the protons.
When the first linacs were made, the maximum frequency for the a.c. supply was
about 7 MHz.
Suggest why it is an advantage to use a much higher frequency than this.