  A calculation is presented of the radiative decay of the Upsilon(nS) into a
bound state of bottom squarks. Predictions are provided of the branching
fraction as a function of the masses of the bottom squark and the gluino.
Branching fractions as large as several times 10^{-4} are obtained for
supersymmetric particle masses in the range suggested by the analysis of
bottom-quark production cross sections. Data are shown that limit the range of
allowed masses. Forthcoming high-statistics data from the CLEO Collaboration
offer possibilities of discovery or significant new bounds on the existence and
masses of supersymmetric particles.
