Development of Two-dimensional Imaging Sensor System Utilizing Photostimulated Luminescence Phenomnenon for Ionizing Radiation

利用光刺激发光现象电离辐射二维成像传感器系统的开发

• 批准号: 09558060
• 负责人: NANTO Hidehito
• 金额: $ 6.4万
• 依托单位: Kanazawa Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09558060/
• 关键词: Radiation dosimeter; Photostimulated luminescence; Image sensor; Ceramics; Phosphors; 放射線; 薄膜

In order to develop an intelligent two-dimensional imaging sensor utilizing photostimulated luminescence for ionizing radiation, we investigated the optical characteristics of various photostimulable phosphor materials and the characteristics of the commercially-available imaging plate (IP). The following fruitful results were obtained;(1) Fading mechanismof the IP which has tosolve in practical application to radiation dosimetry was studied. It was found that fading is affected by the humidity, the temperature, the concentration of luminescent centers and type of the electron trapping centers.(2) We found out some new photostimulable phosphor materials such as KCI:Eu, KBr:Eu, KCIィイD2xィエD2BrィイD21-xィエD2:Eu and SrS:Eu, Sm as the material for two-dimensional imaging sensor for radiation dosimetry.(3) It was found that the analysis of the PSL stimulation spevtrum of the IP is useful for a novel radiation dosimeter which can discriminate the energy and the type of the radiation.

为了使用光验光发光进行电离辐射开发智能的二维成像传感器，我们研究了各种可光刺激的磷光材料的光学特性以及商业上可用的成像板（IP）的特性。获得了以下富有成果的结果；（1）在辐射剂量测定法中具有TOSOLVE的IP的褪色机制是研究的。 It was found that fading is affected by The humidity, the temperature, the concentration of luminescent centers and type of the electronic trapping centers.(2) We found out some new photostimulable phosphor materials such as KCI:Eu, KBr:Eu, KCIi D2xie D2Brii D21-xie D2:Eu and SrS:Eu, Sm as the material for two-dimensional imaging sensor for （3）发现对IP的PSL刺激SPEVTRUM的分析对于可以区分辐射的能量和类型的新型辐射剂量列表很有用。

项目成果

S.Nasu, H.Nanto et al.: "Fading Characteristics of Photostimulable Phosphor Materials" Radiation Detectors and Their Uses. 97-8. 14-23 (1997)

S.Nasu、H.Nanto 等人：“光刺激磷光体材料的褪色特性”辐射探测器及其用途。

H.Nanto, S.Nasu et al.: "New Photostimulable Phosphor Materials for Imaging Plate of Computed Radiography" Proceedings of SPIE. 3336(印刷中). (1998)

H.Nanto、S.Nasu 等人：“用于计算机放射成像成像板的新型光刺激磷光体材料”SPIE 3336 论文集（出版中）。

T.Douguchi,H.Nanto et al,: "Photostimulated Luminescence and Its Fading Characteristics in Alkali Halides Phosphors" Radiation Detectors and Their Uses. 98-4. 66-73 (1998)

T.Douguchi、H.Nanto 等人：“碱卤化物磷光体中的光刺激发光及其衰落特征”辐射探测器及其用途。

H.Nanto, S.Nasu et al.: "photostimulated Luminescence in KCl_xBr_<1-x>:Eu Phosphor Ceramics as a Two-dimensional Image Sensor Matelial for Radiation" 電気学会論文誌E. 117・3. 142-146 (1997)

H.Nanto、S.Nasu 等人：“KCl_xBr_<1-x> 中的光刺激发光：Eu 磷光体陶瓷作为辐射用二维图像传感器材料” 日本电气工程师学会会刊 E. 117・3 142-146（1997）

H.Nanto: "Physics of Photostimulable Phosphors"Ionizing Radiation. 25. 9-24 (1999)

H.Nanto：“光激发磷光体物理学”电离辐射。