Commissioning of optically stimulated luminescence dosimeters for use in radiotherapy

A representative study of pediatric panoramic and cephalometric radiation exposure to organs of the head and neck

“…CIRS phantoms are fabricated using materials that are superior in their imaging properties, and may more accurately simulate the radiation absorption characteristics of actual organs and tissues compared to the Rando phantom heads [1]. OSLDs are based on a more recent technology for measuring absorbed radiation, and recent studies appear to indicate that they have a higher sensitivity in the low radiation dose range [2,13]. The aim of our study was to measure radiation exposure to different organs of the head and neck in juvenile phantoms using these recent technologies in combination.…”

“…OSLDs are a more advanced type of dosimeter ( Figure 1). OSL dosimeters when analyzed use only a fraction of the stored charge so that re-analysis is possible, instead of heat, light is used and is easier to control and the material used for dosimetry is sapphire which is very rugged with little to no post irradiation fading [11][12][13]. Anthropomorphic phantoms are available in sizes and conformations that range from newborn to adult.…”

Adaptation and security validation of an irradiator suitable for use of cesium-137 sources

“…Due to their small size, low fading, and easy reading, nanoDot OSL dosimeters based on Al2O3:C from Landauer have also been used in these types of situations [8] [9]. Thus, in order to certify the safety conditions of irradiation, the routine handling procedure was simulated using the transport code MCNPX 2.7 and the DEXRAX32 spectrum generator [10] [11].…”

Optical fibre X-ray radiation dosimeter sensor for low dose applications

“…Evans [44]. When silver activated phosphate glass is subjected to ionising radiation then luminescent centres appear in it.…”

“…Glass dosimeters need no correction factors, have a small energy dependence, exhibit little fading and are linear from 0Gy to 500Gy [44]. One of the major disadvantages of this type of system is that the dosimeter requires an expensive system to read the measurement of the radiation from the glass dosimeter.…”