Determining the acceleration height of the electrons responsible for bremsstrahlung gamma-ray bursts with energies above 10 MeV during the solar flares of April 2, 1982, and March 26, 1991

We determined the acceleration height of the electrons that produced short high-energy gamma-ray bursts with Eγ > 10 MeV during the development of the solar flares on March 26, 1991, and April 2, 1982. In both cases, the height was found to be hacc<4×109 cm. This result suggests that the low acceleration location is a typical and, possibly, necessary condition for electron acceleration up to tens and hundreds of MeV. We describe two different methods of height determination that are based on a multi-wave analysis of flares.