Application of the “MBWC” two-dimensional position readout technique to a multiwire proportional counter
Application of the “MBWC” two-dimensional position readout technique to a multiwire proportional counter
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“MBWC”二维位置读出技术在多线正比计数器中的应用
DOI：
10.1016/0168-9002(95)00682-6
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发表时间：
1995
影响因子：
1.4
通讯作者：
Y. Awaya
中科院分区：
文献类型：
--
作者：
T. Mizogawa;Michiyuki Sato;Y. Awaya
将一种称为“带加权耦合电容的修正双陆棋法”的二维位置读出技术应用于多丝正比计数管，并对其图像线性度和位置分辨力进行了研究。两种类型的技术之一，三输出MBWC方法，已经显示了几种图像变形。阐明了变形的来源和避免变形的方法。另一方面，通过采用另一类型（四输出MBWC方法）已经容易地获得基本上线性的图像。用Fe K X射线研究了平行于金属丝方向的总空间分辨率和垂直于金属丝方向的位置编码阴极的空间分辨率。得到的最佳值分别为130和110 μm（FWHM），对应于10600 × 600像素。
A two-dimensional position readout technique named “modified backgammon method with weighted coupling capacitors (MBWC)” has been applied to a multiwire proportional counter, and its image linearity and position resolution have been investigated. One of two types of the technique, the three-output MBWC method, has shown several kinds of image deformations. The sources of the deformation and the way to avoid them are clarified. On the other hand, an essentially linear image has been readily obtained by adopting the other type (four-output MBWC method). The overall spatial resolution parallel to the wire direction and the spatial resolution of the position encoding cathode for the direction perpendicular to the wire have been investigated with Fe K X-rays. The best values obtained are 130 and 110 μm (FWHM), respectively, which correspond to ∼600 × 600 pixels.