Study of spatial resolution properties of a glass RPC

Study of spatial resolution properties of a glass RPC
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玻璃RPC的空间分辨率特性研究

DOI:
10.1016/j.nima.2011.10.006
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发表时间:
2012-01
期刊:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
--
通讯作者:
Hongtao Liu
Hongtao Liu
中科院分区:
其他
文献类型:
--
作者:
Qite Li;Yanlin Ye;Chao Wen;Wei Ji;Yushou Song;Rongrong Ma;Chen Zhou;Yucheng Ge;Hongtao Liu

文献摘要

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制作了具有优良信噪比的玻璃RPC原型并进行了测试。雪崩和流光操作模式的宇宙射线的探测效率约为95%。提出了一种简单的测量信号电荷分布的方法,该方法与直接光学观察等方法一致。雪崩信号模式的轮廓很窄,这可能导致本征空间分辨率小于1.0mm FWHM。如果使用延迟线或电荷分配技术来确定信号电荷分布的质心,则重要的是减少电子噪声和延迟线(或电阻器)单元的波动,以达到最终的本征位置分辨率。
A prototyping glass RPC with excellent signal-to-noise ratio was constructed and tested. Detection efficiencies for cosmic rays of about 95% were obtained for both avalanche and streamer modes of operation. A simple method to measure the signal charge profile is developed, which is consistent with other methods such as direct optical observation. A narrow profile for avalanche signal mode is obtained, which may lead to an intrinsic spatial resolution less than 1.0mm FWHM. If a delay-line or charge division technique is used to determine the centroid of the signal charge distribution, it is important to reduce the electronics noise and the fluctuations of the delay-line (or resistor) units in order to reach the ultimate intrinsic position resolution.
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