Calibration of new batches and a study of applications of nuclear track detectors under the harsh conditions of nuclear fusion experiments

► Each new batch of PM-355 material should be carefully calibrated. ► The detectors heated at a temperature higher than 100 °C demonstrate v nearly equal to 1. ► The dependence of VB on the temperature is similar to the dependence of VB on the dose of electron and gamma radiation. ► The aging effect of these materials also has a significant influence on the track diameter.