基于LED光源的成像板剂量性能初步研究

成像板的发光机制与光释光(OSL)元件的发光原理类似,均为光激励发光(PSL).为了验证光释光读出器也能用于成像板读数的可行性,使用丹麦Riso国家实验室生产的DA-15 OSL/TL通用读出仪开展成像板对光子和电子响应的测量研究.结果表明成像板的发光特性和剂量响应与释光类剂量计相同,使用光释光读出器对成像板进行测读可行.

Preliminary Research on Performance of Imaging Plate with LED Light Source

The luminescence mechanism of imaging plate is similar with optically stimulated luminescence (OSL) detectors,both of them are photo stimulated luminescence.In order to prove the possibility of using OSL readers to read imaging platesignals,a DA-15 OSL/TL reader produced by Denmark Riso National laboratory was used to read the imaging plate.The response of imaging plate to photon and electron is measured.The result shows that the characteristics of luminescence and the dose response of imaging plate are matched with other luminescence dosimeters,and the imaging plate signals can be measured by using OSL readers is also be confirmed.