CONACYT-Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P.70-543, 04510, Ciudad de México, México.
Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Legaria, 11500, Ciudad de México, México.
Appl Radiat Isot. 2022 Jan;179:110021. doi: 10.1016/j.apradiso.2021.110021. Epub 2021 Nov 9.
In this investigation, the Continuous-Wave Optically Stimulated Luminescence (CW-OSL) properties of polyminerals extracted from Mexican and Peruvian Guajillo chilli were studied using a source of cesium-137 (Cs-137) gamma radiation. The Guajillo chilli polyminerals were stimulated with blue light for 120 s, and their luminescence was detected in the UV region. The General Order Kinetics (GOK) deconvolution analysis of the CW-OSL curves was carried out using three individual components. The CW-OSL dose response from 10 to 5000 Gy was analysed in Guajillo chilli polyminerals. After different storage periods, the polyminerals show an increase in the CW-OSL intensity. A strong and moderate effect of the sunlight (60 min) and artificial (6 h) light is observed on the CW-OSL response. Therefore, the CW-OSL properties of polyminerals could be used in the identification of Mexican and Peruvian Guajillo chilli exposed to Cs-137 gamma radiation.
本研究使用铯-137（Cs-137）γ 射线源，对从墨西哥和秘鲁的绿辣椒中提取的多矿物进行连续波光激励发光（CW-OSL）特性研究。绿辣椒多矿物用蓝光激励 120s，在紫外区检测其发光。通过三个独立分量对 CW-OSL 曲线进行了广义有序动力学（GOK）反卷积分析。分析了绿辣椒多矿物中 10 到 5000Gy 的 CW-OSL 剂量响应。经过不同的储存期后，多矿物的 CW-OSL 强度增加。观察到阳光（60 分钟）和人工（6 小时）光对 CW-OSL 响应有强烈和中度的影响。因此，CW-OSL 特性可用于识别暴露于 Cs-137γ 辐射的墨西哥和秘鲁绿辣椒。
