Utilization of Radiochromic Films for Personnel Dosimetry

Until now, no occupational personal badge for radiation dosimetry can be used for providing self reading exposure in real time. Radiochromic films -an organic-based dyes- originally designed by International Specially Product (ISP) as series of GAFCHROMIC products have features include changes in color upon irradiation due to polymerization process. Other superior features include dose response linearity in the range of 1 cGy up to 103 Gy, change in density post-irradiation, energy dependence, and sensitivity to day light. The recent improvements in features and applications- specially measuring the lower doses - have attracted our attention for use these films in occupational personnel dosimetry. We designed, constructed and tested a new badge assembly based on radiochromic film taking into consideration the appropriate precautions in handling, calibration and scanning.