2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/84732Beginning with the general Bjorken-Mtingwa solution, we derive a simplified model of intrabeam scattering (IBS), one valid for high energy beams in normal storage rings; our result is similar, though more accurate than a model due to Raubenheimer. In addition, we show that a modified version of Piwinski's IBS formulation (where eta squared over beta has been replaced by the dispersion invariant) at high energies asymptotically approaches the same result.4 pages, 2 figures, presented at epac'02Accelerator Physicstext