Plio-Quaternary stepwise drying of Asia: Evidence from a 3-Ma pollen record from the Chinese Loess Plateau

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用于放射性束流实验的低气压二维位置灵敏多丝正比室

为在放射性束流线上进行核反应研究而研制了灵敏面积为50mm×50mm的二维位置灵敏的低气压多丝正比室。低气压多丝正比室为穿透式,在真空中使用,工作气压为800Pa,透射性好,不干扰束流。放射性束流在束测试结果表明:它的x、y方向的位置双径迹分辨为1mm;对30～40MeV的低Z放射性束的探测效率大于80%,适用于中能次级束实验中入射束的定位和反应中产生的带电粒子出射角度的测量。

Characterization of airborne carbonate over a site near Asian dust source regions during spring 2002 and its climatic and environmental significance

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Analysis of 40 years of solar radiation data from China, 1961-2000

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A multi-cycle climatic fluctuation record of the last interglacial period: Typical stratigraphic section in the Salawusu River Valley on the Ordos Plateau, China

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The vegetation and climate change during Neocene and Early Quaternary in Jiuxi Basin, China

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Pollen record from red clay sequence in the central Loess Plateau between 8.10 and 2.60 Ma

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Clay ratio as a tracer to assess the origin of soil-derived dust

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Characteristics of carbonate content and carbon and oxygen isotopic composition of northern China soil and dust aerosol and its application to tracing dust sources

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低气压双维位置灵敏多丝正比室的研制

描述了为在放射性束流线上开展核反应研究而研制的灵敏面积为50mm×50mm的双维位置灵敏的低气压多丝正比室,研制的低气压多丝正比室为穿透式,在真空中使用,工作气压为8mb,透射性好,不干扰束流,放射源测试结果表明,它的x,y方向的位置双径迹分辨为1mm,用放射性束流在束测试结果表明,对30—40MeV的低Z放射性束的探测效率大于80％,适用于中能次级束实验中入射束的定位和反应中产生的带电粒子出射角度的测量。

Potential global climatic impacts of the North Pacific Ocean

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