The radiation background of BES detector depends on the radiation level in the BES experimental hall.

北京谱仪BES辐射本底水平是由大厅内的辐射水平决定的。

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Objective To assess the radiation background levels of Shandong basin in east line of northward rerouting of southern river.

目的对南水北调东线山东段通水前沿线流域的放射性本底水平进行评价。

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The way to reduce radiation level of experimental hall is very important for suppression of radiation background of BES and improvement of detection efficiency.

降低厅内的辐射水平是减少BES的辐射本底和提高BES探测效率和“信噪比”的重要途径。

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One of the main challenges for anyone attempting to ascertain the health effects of Chernobyl radiation is that there is so much background radiation in the atmosphere to begin with.

CNN: 26 years on: helping Chernobyl's children

Dr. GERBER: It's approximately four times the natural radiation dose that we all receive annually in the Unites States, as a result from background radiation due to radon and other materials.

NPR: Study: Heart CT Scans May Pose Risk

Any health effects from the more abundant and diverse background radiation would completely swamp anything from reactors.

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