[en] The effective dose equivalents and ratios of organ or tissue doses to effective dose equivalents received by medical diagnostic X-ray workers were evaluated by means of personnel dosemeters. The dosemeters were placed in a nonuniform phantom made of dry skeleton and dry powder as equivalent soft tissue. Ratios of effective dose equivalents to dosemeter readings for male and female personnel were 0.52 and 0.43 for gastrointestinal examinations and 0.32 and 0.21 for chest fluoroscopy, respectively. Based on the personnel monitoring data, the effective dose equivalents to medical diagnostic X-ray workers were estimated