aluminum nitride ceramic as an optically stimulable luminescence dosimeter plate

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ID: 166229
2016
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Abstract
Photostimulable storage phosphors have been used in a wide range of applications including radiation measurements in one- and two-dimensional spaces, called point dosimetry and radiography. In this work, we report that an aluminum nitride (AlN) ceramic plate, which is practically used as a heat sink (SHAPAL®, Tokuyama Corp., Yamaguchi, Japan), shows good optically-stimulated luminescence (OSL) properties with sufficiently large signal and capability for imaging applications, and we have characterized the AlN plate for OSL applications. Upon interaction with X-rays, the sample color turns yellowish, due to a radiation-induced photoabsorption band in the UV-blue range below ~500 nm. After irradiating the sample with X-rays, an intense OSL emission can be observed in the UV (360 nm) spectral region during stimulation by red light. Although our measurement setup is not optimized, dose detection was confirmed as low as ~3 mGy to over 20 Gy. Furthermore, we have successfully demonstrated that the SHAPAL® AlN ceramic plate has great potential to be used as an imaging plate in radiography.
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Authors Go Okada, Kentaro Fukuda, Safa Kasap, Takayuki Yanagida
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Journal pakistan journal of medical sciences
Year 2016
DOI
10.3390/photonics3020023
URL
http://www.mdpi.com/2304-6732/3/2/23
Keywords
photonics

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