Realization and test of position sensitive boron coated straw-tube
Realization and test of position sensitive boron coated straw-tube
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DOI：
10.1109/nssmic.2013.6829480
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发表时间：
2013-10
期刊：
影响因子：
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通讯作者：
C. Chen;H. Gong;Y. Yang;S. Zhu;T. Huang;Y. Wang;X. Wang;Y. Li
中科院分区：
文献类型：
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作者：
C. Chen;H. Gong;Y. Yang;S. Zhu;T. Huang;Y. Wang;X. Wang;Y. Li
为了解决热中子探测中广泛使用的~ 3 He气体的短缺问题，研制了涂硼吸管来代替~ 3 He正比计数管。本文介绍了一种长1 m、直径4 mm、内表面涂有1 μ mB_4C层、将中子转化为带电粒子的吸管的实现过程。[1]研究了高压、工作气体、阳极丝直径等参数对秸秆管性能的影响。7.27初步实验研究中，采用15 μ m Karma阳极丝（20°C时为1.33μΩ · m）的吸管管，以1atm纯氩气为工作气体，在730 V电压下工作，获得了单管平均位置分辨力.电荷除法读出的位置与真实的位置的线性度可达99.992%。
To deal with the shortage of 3He gas, which is widely used in thermal neutron detection, the boron coated straw-tubes have been developing to replace the 3He proportional counters. We present in this paper the realization process of a straw tube with 1 m long and the diameter is 4 mm, with 1 μm B4C layer coated on the inner surface to convert neutrons to charged particles.[1] The parameters, high voltage, working gas and the diameter of the anode wire, are researched to realize the best performance of the straw tube. 7.27 mm, the average position resolution of a single tube, is achieved with the straw tube with 15 μm-diameter karma anode wire (1.33μΩ · m at 20°C), with 1atm pure argon as working gas and working under the voltage of 730 V in the tentative experimental research. The linearity of positions measured by charged division read out and the real positions can achieve 99.992%.