| 红光固体二极管点阵在释光测年中的光照应用 |
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| 引用本文： | 王旭龙,李晓妮,卢演俦.红光固体二极管点阵在释光测年中的光照应用[J].海洋地质与第四纪地质,2004,24(1):133-137. |
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| 作者姓名： | 王旭龙 李晓妮 卢演俦 |
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| 作者单位： | 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,西安,710075 |
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| 基金项目： | 黄土与第四纪国家重点实验室基金(SKLLQ0317) |
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| 摘 要： | 释光测年实验室照明光源的特征(波长与功率)直接影响到释光测年数据的准确性,因此释光测年技术对照明光源的要求很严格。通过对比,选择了典型的红光固体二极管R LED1(661±15)nm作为研究对象。利用R LED1点阵对已知剂量的石英和钾长石样品进行不同时间的光照后,再用单片再生法恢复样品的等效剂量,发现样品的等效剂量与已知剂量差别不大,表明石英和钾长石经过不同时间的R LED1点阵光照后没有发生明显的信号衰减,对测年样品没有影响。因此,利用波长为(661±15)nm的红光固体二极管作为释光测年实验室的照明光源是安全可靠的。
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| 关 键 词： | ？红光固体二极管 单片再生法 光照 晒退 测年 |
| 文章编号： | 0256-1492(2004)01-0133-05 |
| 修稿时间： | 2003年11月13 |
RED LED AND ITS APPLICATION TO LUMINESCENCE LIGHTING |
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| WANG Xu-long,LI Xiao-ni,LU Yan-chou Institute of Earth Environment,Chinese Academy of Sciences,Xi'an ,China.RED LED AND ITS APPLICATION TO LUMINESCENCE LIGHTING[J].Marine Geology & Quaternary Geology,2004,24(1):133-137. |
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| Authors: | WANG Xu-long LI Xiao-ni LU Yan-chou Institute of Earth Environment Chinese Academy of Sciences Xi'an China |
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| Institution: | WANG Xu-long,LI Xiao-ni,LU Yan-chou Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710075,China) |
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| Abstract: | The choice of lighting is very vital for luminescence dating laboratory. Based on the bleaching of different wavelengths of quartz and feldspar, R-LED1 ( 661 15 nm ) was selected from three types of red LED ( R-LED1, R-LED2 and R-LED3 ) for its waveband and lighting intensity. To estimate the safety of R-LED1 array lighting, dose recovery test using single-aliquot regenerative-dose protocol was applied to the quartz and K-feldspar after exposure for different times to R-LED1 array lighting. The recovery doses showed that there was no obvious effect after exposure to R-LED1 array. Contrasting to the low-pressure sodium vapor lamp, R-LED1 array is safe for luminescence dating laboratory, and more convenient, cheaper for use. So R-LED1 array is an ideal lighting for luminescence dating laboratory. |
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| Keywords: | red LED array SAR protocol lighting bleaching |
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