[en] Digital Breast Tomosynthesis (DBT) is an efficient method to diagnose changes in the breast tissues. However, it may promote some future detriment to the patient exposed in this test. The future effects can be evaluating using absorbed dose values. In this work a breast compressed phantom was developed for use mammography and DBT tests. This phantom is made in PMMA and it is composed of four plates. It has a semicircular shape with dimensions of 18 to 10 cm and a thickness of 5 cm. The phantom was used for observe the dose distribution in the central area of the phantom and the entrance skin air kerma (ESAK) in the superior surface. To record profile doses it was used radiochromic film sheets cut in a semi circular shape. The experiments were made in a device Selenia, Dimensions model, using the automatic exposition control to define the optimized acquisition protocol. The phantom was irradiated with 30 kV and 55,4 m A.s, using tungsten target and aluminium filter. The defined X-ray beam and a mammographic ionizing chamber were used for expose some film strips and obtain two calibration curves, one for the surface and another for the middle, in the range of interest. The film sheets were placed in the phantom alternatively, in two different expositions, using the same protocol. After digital images of the film sheets were made and worked to obtain dose profiles. The average air kerma recorded in the central cut was 1.54 mGy and the average ESAK recorded was 5.48 mGy. The variation of the ESAK in the surface area was lower than 10% and in the middle the air kerma variation was lower than 8%. The use of radiochromic film was good to obtain dose profiles in breast tomosynthesis expositions. (Author)