锂-6板闪烁体中中子诱导粒子的超高分辨率实时轨迹成像

IF 1.3 4区 工程技术 Q3 INSTRUMENTS & INSTRUMENTATION
Yamamoto Seiichi, Yoshino Masao, Nakanishi Kohei, Kamada Kei, Yoshikawa Akira, Kataoka Jun
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引用次数: 0

摘要

摘要:已知锂-6 (6 Li)能吸收一个中子,可分为一个triton粒子和一个alpha粒子。然而,所产生的triton的轨迹尚未得到实时和高分辨率的成像。我们开发了一种超高分辨率成像系统,可以实时清晰地观察中子诱导粒子的运动轨迹。该系统是基于一个放大单元和一个冷却的电子倍增电荷耦合器件(EM-CCD)相机,结合一个6 Li板和一个ce掺杂的g3al2ga3o12 (GAGG)闪烁板。来自锎-252 (252 Cf)源的中子被照射到6li板上,产生了氚和α粒子。产生的氚或α粒子进入GAGG板并沿着轨迹产生闪烁光。该装置放大了闪烁轨迹,增强了光线,并由EM-CCD相机成像。利用我们的系统,我们可以实时测量粒子的细长轨迹图像。大多数轨迹在图像中都有类似布拉格峰的形状。平均范围为15 μm,宽度为4.6 μm。根据我们估计的范围,我们发现这些轨迹可以归因于诱导的海旋。因此,所开发的实时成像系统为中子产生粒子的超高分辨率成像研究提供了良好的前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ultrahigh resolution real-time trajectory imaging of neutron induced particles in a scintillator from lithium-6 plate
Abstract It is known that a lithium-6 ( 6 Li) absorbs a neutron and is divided into a triton and an alpha particle. However, the trajectories of the produced tritons have not yet been imaged in real time and high resolution. We developed an ultrahigh-resolution imaging system that can clearly observe the trajectories of neutron induced particles in real time. The developed system is based on a magnifying unit and a cooled electron multiplying charge-coupled device (EM-CCD) camera combined with a 6 Li plate and a Ce-doped Gd 3 Al 2 Ga 3 O 12 (GAGG) scintillator plate. Neutrons from a californium-252 ( 252 Cf) source were irradiated to the 6 Li plate, which produced tritons and alpha particles. The produced tritons or alpha particles entered the GAGG plate and produced scintillation light along the trajectories. The scintillation trajectories were magnified by the unit, light intensified, and imaged by the EM-CCD camera. Using our system, we could measure the elongated trajectory images of the particles in real time. Most of these trajectories had Bragg peak like shapes in the images. The average range was 15 μm and the width was 4.6 μm FWHM. From the ranges we estimated, we found that these trajectories could be attributed to the induced tritons. Consequently, the developed real time imaging system is promising for research on the ultrahigh resolution imaging of neutron produced particles.
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来源期刊
Journal of Instrumentation
Journal of Instrumentation 工程技术-仪器仪表
CiteScore
2.40
自引率
15.40%
发文量
827
审稿时长
7.5 months
期刊介绍: Journal of Instrumentation (JINST) covers major areas related to concepts and instrumentation in detector physics, accelerator science and associated experimental methods and techniques, theory, modelling and simulations. The main subject areas include. -Accelerators: concepts, modelling, simulations and sources- Instrumentation and hardware for accelerators: particles, synchrotron radiation, neutrons- Detector physics: concepts, processes, methods, modelling and simulations- Detectors, apparatus and methods for particle, astroparticle, nuclear, atomic, and molecular physics- Instrumentation and methods for plasma research- Methods and apparatus for astronomy and astrophysics- Detectors, methods and apparatus for biomedical applications, life sciences and material research- Instrumentation and techniques for medical imaging, diagnostics and therapy- Instrumentation and techniques for dosimetry, monitoring and radiation damage- Detectors, instrumentation and methods for non-destructive tests (NDT)- Detector readout concepts, electronics and data acquisition methods- Algorithms, software and data reduction methods- Materials and associated technologies, etc.- Engineering and technical issues. JINST also includes a section dedicated to technical reports and instrumentation theses.
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