Recent upgrading of the nanosecond pulse radiolysis setup and construction of laser flash photolysis setup at the Institute of Nuclear Chemistry and Technology in Warsaw, Poland

IF 0.7 4区 物理与天体物理 Q4 CHEMISTRY, INORGANIC & NUCLEAR Nukleonika Pub Date : 2022-09-01 DOI:10.2478/nuka-2022-0005
T. Szreder
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Abstract

Abstract Modification of pulse radiolysis (PR) setup and construction of a new laser flash photolysis (LFP) setup at the Institute of Nuclear Chemistry and Technology (INCT) is described. Both techniques are dedicated to studying fast reactions in real time by direct observation of transients. Time resolution of the PR setup at INCT was ~11 ns, limited by the duration of the electron pulse. Implementation of a new spectrophotometric detection system resulted in a significant broadening of experimental spectral range with respect to the previous setup. Noticeable reduction of the noise-to-signal ratio was also achieved. The LFP system was built from scratch. Its time resolution was ~6 ns, limited by the duration of a laser pulse. LFP and PR were purposely designed to share the same hardware and software solutions. Therefore, components of the detection systems can be transferred between both setups, significantly lowering the costs and shortening the construction/upgrading time. Opened architecture and improved experimental flexibility of both techniques were accomplished by implementation of Ethernet transmission control protocol/Internet protocol (TCP/IP) communication core and newly designed software. This is one of the most important enhancements. As a result, new experimental modes are available for both techniques, improving the quality and reducing the time of data collections. In addition, both systems are characterized by relatively high redundancy. Currently, implementation of new equipment into the systems hardly ever requires programming. In contrast to the previous setup, daily adaptations of hardware to experimental requirements are possible and relatively easy to perform.
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波兰华沙核化学与技术研究所纳秒脉冲辐解装置的最新升级和激光闪光光解装置的构建
摘要介绍了核化学与技术研究所脉冲辐解(PR)装置的改进和新型激光闪光光解(LFP)装置的构建。这两种技术都致力于通过直接观察瞬态来实时研究快速反应。INCT下PR装置的时间分辨率为~11ns,受到电子脉冲持续时间的限制。新的分光光度检测系统的实现使实验光谱范围相对于以前的设置显著拓宽。信噪比也显著降低。LFP系统是从零开始构建的。它的时间分辨率约为6ns,受到激光脉冲持续时间的限制。LFP和PR的设计目的是共享相同的硬件和软件解决方案。因此,检测系统的部件可以在两个设置之间转移,从而显著降低成本并缩短构建/升级时间。通过实现以太网传输控制协议/网际协议(TCP/IP)通信核心和新设计的软件,实现了这两种技术的开放式体系结构和提高的实验灵活性。这是最重要的增强功能之一。因此,这两种技术都有了新的实验模式,提高了数据收集的质量并缩短了时间。此外,这两个系统都具有相对较高的冗余度。目前,在系统中实施新设备几乎不需要编程。与之前的设置不同,硬件每天都可以根据实验要求进行调整,而且相对容易执行。
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来源期刊
Nukleonika
Nukleonika 物理-无机化学与核化学
CiteScore
2.00
自引率
0.00%
发文量
5
审稿时长
4-8 weeks
期刊介绍: "Nukleonika" is an international peer-reviewed, scientific journal publishing original top quality papers on fundamental, experimental, applied and theoretical aspects of nuclear sciences. The fields of research include: radiochemistry, radiation measurements, application of radionuclides in various branches of science and technology, chemistry of f-block elements, radiation chemistry, radiation physics, activation analysis, nuclear medicine, radiobiology, radiation safety, nuclear industrial electronics, environmental protection, radioactive wastes, nuclear technologies in material and process engineering, radioisotope diagnostic methods of engineering objects, nuclear physics, nuclear reactors and nuclear power, reactor physics, nuclear safety, fuel cycle, reactor calculations, nuclear chemical engineering, nuclear fusion, plasma physics etc.
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