The use of alpha-Al2O3:C in Risø OSL single grains attachment system for assessing the spatial dose rate distribution due to incorporation of 90Sr in human teeth.
The possibility of using a single grain OSL attachment system developed by the Risø National Laboratory (Roskilde, Denmark) for assessing the spatial distribution of radionuclides incorporated in human tissues was investigated. Detectors containing arrays of single grains of alpha-Al2O3)C powder (Landauer Inc., USA) were prepared using aluminium discs (diameter 9.7 mm), which can accommodate 100 single grains in 0.3 mm holes positioned in a 10 x 10 grid. The luminescence and dosimetric properties of each grain were investigated by exposing the detectors to uniform photon radiation fields. After the characterisation of the detectors, the systems were tested to assess the spatial dose rate distribution because of 90Sr incorporated in a tooth sample extracted from an inhabitant of the Techa River region.
Università degli Studi di Milano, Dipartimento di Fisica and INFN, Sezione di Milano, Via Celoria 16, I-20133 Milano, Italy. ivan.veronese@unimi.it
I
I
Veronese
N
N
El-Faramawy
A
A
Giussani
M C
MC
Cantone
E A
EA
Shishkina
H Y
HY
Göksu
D000537:Aluminum Oxide / Q000737:chemistry* / Q000528:radiation effects*; D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005240:Feasibility Studies; D006801:Humans; D008422:Materials Testing; D010316:Particle Size; D011829:Radiation Dosage; D013326:Strontium Radioisotopes / Q000032:analysis*; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods*; D014070:Tooth / Q000737:chemistry*
D013326:Strontium Radioisotopes; D000537:Aluminum Oxide