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本文叙述一种基于延迟线耦合读出的两维多丝正比室成像装置。它由多丝室、延迟线、主放大器、定时单道以及时幅变换器等组成。多丝室为流气式,其灵敏面积为20×20cm~2;丝室本身位置分辨率为2.06mm。延迟线为电磁性扁平状结构,其延迟率为6.3ns/mm;上升时间100ns。定时器时间晃动1ns(动态范围为13:1)。最后给出了~(14)C-标记化合物在层析纸分布测量及特别圆圈模型成像实验图像。
This article describes a two-dimensional, multi-wire, proportional-linear-imaging device based on a delay line coupled readout. It consists of multi-wire room, the delay line, the main amplifier, timed single-channel and time-converter and other components. Multi-wire room for the flow of gas, the sensitive area of 20 × 20cm ~ 2; chamber itself position resolution of 2.06mm. Delay line for the electromagnetic flat structure, the delay rate of 6.3ns / mm; rise time 100ns. The timer time is 1 ns shaking (dynamic range is 13: 1). Finally, the ~ (14) C-labeled compounds in the chromatographic paper distribution measurement and special circle model imaging experimental images.