アンバー色LEDによるOSL
2007 年 6 巻 1 号 p. 48-52
詳細
2007 年 6 巻 1 号 p. 48-52
OSL personal dosimetry has been widely used in our country.Stimulation of luminescence with a green laser or green light emitting diodes (LED) is realized in the design of OSL readers.New high power LED is the most attractive light source because of their simplicity and reliability.In this paper we will report the performance of the OSL reader equipped with“amber”(590nm) LED.The OSL reader with amber LED was used without additional glass filter and had twice the noise level in comparison with the reader equipped with green LED.The minimum detectable dose of the OSL reader using the bare amber LED was 0.02m Sv.It was found that this reader can be used not only for personal dosimetry but also for environmental monitoring.The OSL reader equipped with amber LED does not need an additional optical filtration of LED light and therefore has a more compact design.
