一个使用氦基混合气的小单元漂移室的实验研究
일개사용양기혼합기적소단원표이실적실험연구
Experimental Study of a Small-cell Drift Chamber Operated with Helium-Based Gases
  • 万方数据
    高能物理与核物理 고능물리여핵물리
    HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
    2005年 4期 387-392 ,共6页

    刘建北%陈昌%陈元柏%金艳%刘荣光%马骁妍%马媛媛%秦中华%唐晓%王岚%伍灵慧%徐美杭%朱旻萱%朱启明

    류건북%진창%진원백%금염%류영광%마효연%마원원%진중화%당효%왕람%오령혜%서미항%주민훤%주계명

    漂移室%小单元%氦基混合气 漂移室%小單元%氦基混閤氣
    표이실%소단원%양기혼합기
    drift chamber%small cell%helium-based gas mixture
    利用宇宙线分别研究了一个小单元漂移室在He/C3H8(60/40)和He/CH4(60/40)两种氦基混合气下的性能.作为比较还测试了在Ar/CO2/CH4(89/10/1)混合气下的性能.研究表明上述氦基混合气的空间分辨和dE/dx分辨好于Ar/CO2/CH4(89/10/1)混合气.使用He/C8H8(60/40)可以获得110μm的空间分辨,在30-40次取样下dE/dx分辨可以达到6%-7%.
    이용우주선분별연구료일개소단원표이실재He/C3H8(60/40)화He/CH4(60/40)량충양기혼합기하적성능.작위비교환측시료재Ar/CO2/CH4(89/10/1)혼합기하적성능.연구표명상술양기혼합기적공간분변화dE/dx분변호우Ar/CO2/CH4(89/10/1)혼합기.사용He/C8H8(60/40)가이획득110μm적공간분변,재30-40차취양하dE/dx분변가이체도6%-7%.
    The performance of a small-cell drift chamber operated with two helium-based gas mixtures, He/C3H8(60/40) and He/CH4(60/40), was studied using cosmic rays, respectively. The gas mixture Ar/CO2/CH4(89/10/1) was also tested for comparison. The spatial resolution and dE/dx resolution of the helium-based gases are better than those of Ar/CO2/CH4(89/10/1). A good spatial resolution of 110μm and a dE/dx resolution of 6%-7% with 30-40 samples were obtained with He/C3H8(60/40).
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