Quantitative magnetic field imaging by polarized pulsed neutrons at J-PARC

Quantitative magnetic field imaging by polarized pulsed neutrons at J-PARC
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DOI：
10.1016/j.nima.2011.01.099
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发表时间：
2011-09-21
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：
Kiyanagi, Y.
Kiyanagi, Y.
中科院分区：
物理与天体物理3区
文献类型：
--
作者：
Shinohara, T.;Sakai, K.;Kiyanagi, Y.

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中子成像最有趣的应用之一是它使磁场的观测成为可能。由于中子自旋与磁场的相互作用依赖于中子能量，因此研究磁场成像的中子能量依赖关系对于定量处理磁场特性具有重要意义。在这项研究中，我们在J-PARC上用飞行时间法进行了偏振脉冲中子成像实验，并分析了获得的偏振图像的能量依赖性。我们还定量地分析了螺线管线圈内磁场相对于量子化轴的强度和方向。(C)2011爱思唯尔B.V.保留所有权利。
One of the most interesting applications of neutron imaging is that it enables the observation of magnetic field. Because the interaction between the neutron spin and the magnetic field depends on the neutron energy, it is important to study the neutron energy dependence of magnetic field imaging to quantitatively treat the characteristics of the magnetic field. In this study, we have performed a polarized pulsed neutron imaging experiment using a time-of-flight method at J-PARC and have analyzed the energy dependence of the obtained polarization image. We have also quantitatively analyzed the strength and the direction of the magnetic field relative to the quantized axis inside a solenoid coil. (C) 2011 Elsevier B.V. All rights reserved.