A new gaseous detector- micro mesh gaseous structure

The structure and working principle of Micromegas (MICRO Mesh Gaseous Structure) is discussed. Some radiation sources of a and X rays are used to test this detector. The optimized electric-field intensity of the conversion gap is obtained. The transmission of electrons and the uniformity of the amplification gap are also presented. The energy resolution of the 5.9 keV peak is better than 27%.

作 者： TANG Hao-Hui GUO Jun-Jun WANG Xiao-Lian XU Zi-Zong   作者單位： University of Science and Technology of China, Hefei 230026, China  刊 名： 中國物理C（英文版）  ISTIC 英文刊名： CHINESE PHYSICS　C  年，卷(期)： 2009 33(9)  分類號： O4  關鍵詞： micromegas   structure   electric field   energy resolution   uniformity  

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