NUKLEONIKA 2005, 50(Supplement 2):S55-S57
Przemysław P. Panta, Wojciech Głuszewski
Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland
Calorimetry is applicable to both absolute calibration of routine dosimeters and absolute measurements
of electron beam (EB) intensity (for industrial radiation processing). Advantages of graphite as the
absorbing calorimetric material are a good heat capacity and negligible heat defect of this material.
Knowledge of the specific heat capacities of the calorimetric core materials is fundamental in making
absolute dose measurements. Two kinds of high-purity graphite used in calorimeters were analysed, i.e.
Union Carbide grade AGOT and nuclear grade graphite [10]. There are some differences of specific
heat of these graphites, up to 2%, which influence dosimetric response of calorimeters made of them.