A normal-pressure MWPC for beam diagnostics at RIBLL2

TANG Shu-Wen; MA Peng; DUAN Li-Min; SUN Zhi-Yu; LU Chen-Gui; YANG He-Run; HU Rong-Jiang; HUANG Wen-Xue; XU Hu-Shan

doi:10.1088/1674-1137/37/6/066002

Chinese Physics C> 2013, Vol. 37> Issue(6) : 066002 DOI: 10.1088/1674-1137/37/6/066002

A normal-pressure MWPC for beam diagnostics at RIBLL2

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Abstract：
A normal pressure MWPC for beam diagnostics at RIBLL2 has been developed, which has a sensitive area of 80 mm×80 mm and consists of three-layer wire planes. The anode plane is designed with a wider frame to reduce the discharge and without using protection wires. The detector has been tested with a ⁵⁵Fe X-ray source and a 200 MeV/u ¹²C beam from CSRm. A position resolution better than 250 μm along the anode wires and a detection efficiency higher than 90% have been achieved.

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TANG Shu-Wen, MA Peng, DUAN Li-Min, SUN Zhi-Yu, LU Chen-Gui, YANG He-Run, HU Rong-Jiang, HUANG Wen-Xue and XU Hu-Shan. A normal-pressure MWPC for beam diagnostics at RIBLL2[J]. Chinese Physics C, 2013, 37(6): 066002. doi: 10.1088/1674-1137/37/6/066002

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Received: 2012-07-11
Revised: 1900-01-01

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