The IMS laboratory is equipped with 2 Harshaw Reader 4500 system to perform the reading of dosimeters. The thermoluminescent dosimeters (TLD) materials are LiF. The TLD is inserted in a specific holder labeled with the user’s ID and the code of the institutes. The results are evaluated according to the ICPR 60. the maximum permissible dose per Year for Hp (10) is 20 mSv and for Hp (0.07) is 500 mSv.