Screening materials with the XIA UltraLo alpha particle counter at Southern Methodist University
Screening materials with the XIA UltraLo alpha particle counter at Southern Methodist University
复制标题
使用南卫理公会大学的 XIA UltraLo α 粒子计数器筛选材料
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
S. Scorza
中科院分区：
文献类型：
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作者：
M. Nakib;J. Cooley;V. Guiseppe;B. Kara;H. Qiu;K. Rielage;R. Schnee;S. Scorza
南卫理公会大学拥有五个现有的商用UltraLo 1800生产型阿尔法计数器之一，由XIA LLC制造。该仪器具有电子漂移室，其具有通过选择内电极尺寸确定的707 cm 2或1800 cm 2计数区域。操作该设备的SMU团队是SuperCDMS筛选工作组的一部分，并使用α计数器研究用于构建SuperCDMS实验的材料中氡衰变的背景速率。我们研究了四个丙烯酸样品从MiniCLEAN直接暗物质搜索与XIA仪器证明其实用性在低背景实验中，通过调查板-南方卫理公会大学拥有由XIA制造的五个现有商业可用的UltraLo 1800生产模型α计数器之一LLC.该仪器具有电子漂移室，其具有通过选择内电极尺寸确定的707 cm 2或1800 cm 2计数区域。操作该设备的SMU团队是SuperCDMS筛选工作组的一部分，并使用α计数器研究用于构建SuperCDMS实验的材料中氡衰变的背景速率。我们已经研究了四个丙烯酸样品从MiniCLEAN直接暗物质搜索与XIA仪器证明其实用程序在低背景实验中通过调查板出的210 Pb和比较的有效性，清洁程序中去除222 Rn后代的样品。
Southern Methodist University houses one of five existing commercially available UltraLo 1800 production model alpha counters made by XIA LLC. The instrument has an electron drift chamber with a 707 cm2 or 1800 cm2 counting region which is determined by selecting the inner electrode size. The SMU team operating this device is part of the SuperCDMS screening working group, and uses the alpha counter to study the background rates from the decay of radon in materials used to construct the SuperCDMS experiment. We have studied four acrylic samples obtained from the MiniCLEAN direct dark matter search with the XIA instrument demonstrating its utility in low background experiments by investigating the plate-out of 210Pb and comparing the effectiveness of cleaning procedures in removing 222Rn progenies from the samples.Southern Methodist University houses one of five existing commercially available UltraLo 1800 production model alpha counters made by XIA LLC. The instrument has an electron drift chamber with a 707 cm2 or 1800 cm2 counting region which is determined by selecting the inner electrode size. The SMU team operating this device is part of the SuperCDMS screening working group, and uses the alpha counter to study the background rates from the decay of radon in materials used to construct the SuperCDMS experiment. We have studied four acrylic samples obtained from the MiniCLEAN direct dark matter search with the XIA instrument demonstrating its utility in low background experiments by investigating the plate-out of 210Pb and comparing the effectiveness of cleaning procedures in removing 222Rn progenies from the samples.