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从核物理我们可知,氘核的半径r0约为1.5×10-21cm,这个半径亦J 氘核之问产生核力相互作用的临界距离。由于氘核带正电荷,核外存在一个U(r)=e2/r的库仑位垒,式中,r为离氘核的距离,e为氘核所带电荷。由于核力为引力,库仑力是斥力,因此由r=r0时U(r)值可得库仑位垒的峰值为9.5×105eV。核力虽然对这个峰值位垒有一削减作用,但由
From the nuclear physics we can see that the radius of the deuteron r0 is about 1.5 × 10-21cm, this radius is also J deuteron nuclear nuclear force to produce the critical distance between the interaction. Since the deuterium has a positive charge, there is a Coulomb barrier with U (r) = e2 / r outside the nucleus, where r is the distance from the deuteron and e is the charge of the deuteron. Since Coulomb force is a repulsive force due to the nuclear force, the peak value of Coulomb barrier obtained from U (r) at r = r0 is 9.5 × 10 5 eV. Although nuclear forces have a reduction effect on this peak barrier,