In-order to emphasize the importance of sample rotation during irradiation in BI 2000, relative percentage dose profile measurements were carried out using FBX dosimeters placed in the central vertical plane of the irradiation volume, either using sample rotation facility or kept stationary. Results obtained were further intercompared with that of Fricke system under identical irradiation conditions. Difference between the maximum and minimum relative percentage dose as obtained for stationary and rotating conditions as measured by both the systems was found to be 32.0% and 27.5% respectively.