In this work we examine the production of fission fragments from the reaction of 81 MeV/u 238U on 9Be targets with thicknesses of 9, 47, and 94 mg/cm2. The A1900 separator and detector systems were used to make particle identification of the fragments. The fragments were characterized by their mass, nuclear charge, atomic charge, and momentum. Over 400 partial momentum distributions were measured and cross sections for a selection of isotopes were calculated and compared to theoretical predictions and previous work. The predictions of the code LISE++ were compared to the results with general overall agreement. Eight new isomers were identified and three new isomeric transitions were observed.
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