A thin emulsion spectrometer using a compact permanent magnet

A thin emulsion spectrometer using a compact permanent magnet
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DOI：
10.1016/j.nima.2008.03.109
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发表时间：
2008-07
期刊：
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
影响因子：
1.4
通讯作者：
C. Fukushima;M. Kimura;S. Ogawa;H. Shibuya;G. Takahashi;K. Kodama;T. Hara;S. Mikado
C. Fukushima;M. Kimura;S. Ogawa;H. Shibuya;G. Takahashi;K. Kodama;T. Hara;S. Mikado
中科院分区：
物理与天体物理3区
文献类型：
--
作者：
C. Fukushima;M. Kimura;S. Ogawa;H. Shibuya;G. Takahashi;K. Kodama;T. Hara;S. Mikado

文献摘要

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用KEK质子同步加速器产生的二次光束测试了一个30毫米长的光谱仪，该光谱仪由紧凑型永磁体内的三个乳化液片组成。在0.5 ~ 2.0GeV/c的动量范围内，利用自动乳化液读出系统重建的轨迹矢状面测量，获得了σ(p)/p=13.3±0.3%的动量分辨率。
A 30mm long spectrometer made of three emulsion sheets inside a compact permanent magnet has been tested with secondary beams produced by the proton synchrotron at KEK. A momentum resolution of σ(p)/p=13.3±0.3% has been obtained in the momentum range from 0.5 to 2.0GeV/c, using the sagitta measurements of the tracks reconstructed with an automated emulsion readout system.