Evaluation of Dose in Gamma-Ray with White Light-Sensitive Phosphor Material in low Temperature


  • P. Rubalajyothi
  • A. Rajendran


Dysprosium doped Barium Calcium Sulphate polycrystalline has been used to perform thermoluminescene studies at different heating rates from lower to higher range of 10 Gy to 2000 Gy. Thermoluminescence spectra showed almost equal peaks and most of the major intensity high points have extreme temperatures of 110, 114, 127 and 125 K exposure. These materials are very effective and sensitive in low dose level response with superb linearity. Using the glow curve fitting to calculate the geometry factor, energy values are observed at all dose levels. Catch cross-segments of each dimension are additionally assessed by utilizing the obtained energy esteems. Additionally, the warming rate conditions of the obtained high points were also examined. It is demonstrated that while the dose level increased, the peak intensity also increased by about 10 Gy to 700 Gy and it reached the maximum dose. Because after 700 Gy doses level, to expose the gamma radiation, the glow curves are splitting further studies were conducted to reduce the voltage value to 800 mV using up to 2000 Gy.