The Coulomb barrier must be overcome for it to occur.
One way to cause this process uses a gas and ion dump to neutralize ions, a technique called neutral beam injection. The Coulomb barrier must be overcome for it to occur. A commonly used apparatus to study this phenomena is a tokamak ("TOE"-kuh-mack"). Natural ways to do it include CNO and the (*) proton-proton chain, which produces helium. In the late 1980's and early 1990's controversial reports claimed to have developed a "cold" version of this process. For 10 points, name this process where atomic nuclei combine.
One way to cause this process uses a gas and ion dump to neutralize ions, a technique called neutral beam injection.
nuclear {fusion} [prompt on {heating} before "Lawson"]