Independent test of loop bremsstrahlung

If the sharp ${\mathit{e}}^{+}$ ${\mathit{e}}^{\mathrm{-}}$ peaks seen in the Darmstadt experiments are due to the loop bremsstrahlung (LB) mechanism, the suggestion is made that it should be possible to reproduce those peaks in a relatively simple low-Z ion experiment. ‘‘Rutherford scattering,’’ with ${\mathit{e}}^{+}$ ${\mathit{e}}^{\mathrm{-}}$ detection added, could provide an independent test of LB. Estimates of ${\mathit{Z}}_{\min }$ for both ${\mathit{e}}^{+}$ ${\mathit{e}}^{\mathrm{-}}$ and ${\mathrm{\mu }}^{+}$ ${\mathrm{\mu }}^{\mathrm{-}}$ peaks are given.