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HU Rong-jiang, DUAN Li-min, YANG He-run, LU Chen-gui, JIN Gen-min, MA Peng, LI Zu-yu, ZHANG Jin-xia. Preliminary Test of One-dimensional Position Encoding Read-out for MICROMEGAS[J]. Nuclear Physics Review, 2011, 28(4): 459-463. DOI: 10.11804/NuclPhysRev.28.04.459
Citation: HU Rong-jiang, DUAN Li-min, YANG He-run, LU Chen-gui, JIN Gen-min, MA Peng, LI Zu-yu, ZHANG Jin-xia. Preliminary Test of One-dimensional Position Encoding Read-out for MICROMEGAS[J]. Nuclear Physics Review, 2011, 28(4): 459-463. DOI: 10.11804/NuclPhysRev.28.04.459
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Preliminary Test of One-dimensional Position Encoding Read-out for MICROMEGAS

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  • The basic principles and implementation of onedimensional position encoding readout for MICROMEGAS have been introduced in this paper. A 10 cm×10 cm prototype of onedimensional position encoding readout electrode based on printed circuit board was designed. Preliminary test indicates that the induction readout is feasible and the ideal charge distribution is 1∶2. X rays emitted from 55Fe source were collimated to one of strips on the readout electrode through a slit of 200 μm, position decoding well reproduced the position of the 55Fe source. For its limitations, we have proposed a onedimensional grouped position encoding readout technique to address a neighboring strips simultaneously fired situation. The amount of readout electronics is very easy to approach a obduction of 75% with position encoding read out technology.
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