Nukleonika最新文献_第2页

Structure and local parameters of self-compressed plasma streams in external magnetic field 外磁场中自压缩等离子体流的结构和局部参数

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2023-03-01 DOI: 10.2478/nuka-2023-0001

Yu.Ye. Volkova, D. Solyakov, A. Marchenko, Volodymyr Chebotarev, I. Garkusha, V. Makhlai, Maryna S. Ladygina, T. Merenkova, D. Yeliseyev, Yurii Petrov, Valerii Staltsov

引用次数: 0

Capabilities of Thomson parabola spectrometer in various laser-plasma- and laser-fusion-related experiments 汤姆逊抛物线光谱仪在各种激光等离子体和激光聚变相关实验中的能力

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2023-03-01 DOI: 10.2478/nuka-2023-0005

P. Tchórz, M. Szymanski, M. Rosiński, T. Chodukowski, S. Borodziuk

{"title":"Capabilities of Thomson parabola spectrometer in various laser-plasma- and laser-fusion-related experiments","authors":"P. Tchórz, M. Szymanski, M. Rosiński, T. Chodukowski, S. Borodziuk","doi":"10.2478/nuka-2023-0005","DOIUrl":"https://doi.org/10.2478/nuka-2023-0005","url":null,"abstract":"Abstract The Thomson parabola spectrometer (TPS) [1] is a well-known, universal diagnostic tool that is widely used in laser plasma experiments to measure the parameters of accelerated ions. In contrast to other popular ion diagnostics, such as semiconductor detectors or ion collectors, the TPS is not greatly affected by electromagnetic pulses generated during high-power laser interaction with matter and can be tuned to acquire data in various energy ranges of accelerated ions, depending on the goal of the experiment. Despite the many advantages of this diagnostic device, processing the collected data is a difficult task and requires a lot of caution during interpretation of gathered results. In this work, we introduce the basic principles of operation and data analysis based on the numerical tool created specifically for the TPS designed at the Institute of Plasma Physics and Laser Microfusion, present a range of data obtained during various recent experiments in which our TPS was used, and highlight the difficulties in data analysis depending on the purpose of the experiment and the experimental setup.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45951817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Kinetic energy partitions in electron–ion PIC simulations of ABC fields ABC场电子-离子PIC模拟中的动能分配

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2023-03-01 DOI: 10.2478/nuka-2023-0004

Qin Chen

引用次数: 0

Using microwave refraction to determine local inhomogeneities of a rotating plasma 用微波折射测定旋转等离子体的局部不均匀性

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2023-03-01 DOI: 10.2478/nuka-2023-0003

Yu.P. Martseniuk, Y. Siusko, Y. Kovtun

引用次数: 0

Investigation of low-temperature plasmas formed in low-density gases surrounding laser-produced plasmas 在激光等离子体周围的低密度气体中形成的低温等离子体的研究

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2023-03-01 DOI: 10.2478/nuka-2023-0002

Mateusz Majszyk, A. Bartnik, W. Skrzeczanowski, T. Fok, Ł. Węgrzyński, M. Szczurek, H. Fiedorowicz

{"title":"Investigation of low-temperature plasmas formed in low-density gases surrounding laser-produced plasmas","authors":"Mateusz Majszyk, A. Bartnik, W. Skrzeczanowski, T. Fok, Ł. Węgrzyński, M. Szczurek, H. Fiedorowicz","doi":"10.2478/nuka-2023-0002","DOIUrl":"https://doi.org/10.2478/nuka-2023-0002","url":null,"abstract":"Abstract Low-temperature plasma production is possible as a result of photoionization using high-intensity extreme ultraviolet (EUV) and soft X-ray (SXR) pulses. Plasma of this type is also present in outer space, e.g., aurora borealis. It also occurs when high-velocity objects enter the atmosphere, during which period high temperatures can be produced locally by friction. Low-temperature plasma is also formed in an ambient gas surrounding the hot laser-produced plasma (LPP). In this work, a special system has been prepared for investigation of this type of plasma. The LPP was created inside a chamber filled with a gas under a low pressure, of the order of 1–50 mbar, by a laser pulse (3–9 J, 1–8 ns) focused onto a gas puff target. In such a case, the SXR/EUV radiation emitted from the LPP was partially absorbed in the low-density gas. In this case, high- and low-temperature plasmas (Te ~100 eV and ~1 eV, respectively) were created locally in the chamber. Investigation of the EUV-induced plasmas was performed mainly using spectral methods in ultraviolet/visible (UV/VIS) light. The measurements were performed using an echelle spectrometer, and additionally, spatial–temporal measurements were performed using an optical streak camera. Spectral analysis was supported by the PGOPHER numerical code.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42006063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Online and FREE access to plasma physics experiments 在线免费访问等离子体物理实验

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2023-03-01 DOI: 10.2478/nuka-2023-0006

Pedro A. Mendes Rossa, Pavel Kuriscák, J. N. Silva, José Veiga, J. Loureiro, João Oliveira, Daniel Hachmeister, H. Fernandes

{"title":"Online and FREE access to plasma physics experiments","authors":"Pedro A. Mendes Rossa, Pavel Kuriscák, J. N. Silva, José Veiga, J. Loureiro, João Oliveira, Daniel Hachmeister, H. Fernandes","doi":"10.2478/nuka-2023-0006","DOIUrl":"https://doi.org/10.2478/nuka-2023-0006","url":null,"abstract":"Abstract Remote controlled laboratories had a great push during the COVID-19 pandemic. In fact, they were already out there but lacking in visibility. This external trigger pushed the academy to face a global challenge to start offering remote experiments more consistently and maturely. Instituto Superior Técnico (IST) has been offering several remote experiments since 2000 but with the need for an update due to technological aging. As such, the framework for remote experiments in education (FREE) was created based on new web technologies. In addition to the most diverse experiments that had already been developed, FREE includes two experiments that aimed at advanced-level physics students: the Langmuir probe and the electromagnetic (EM) cavity. Both allow users to configure the various parameters and to access the results in real time or check back later. All this access is done using a browser (on a PC or mobile phone) without the need to install additional software. The results of an experimental execution are stored in a database and are downloadable, allowing users to do various analyses and to determine the corresponding plasma density and temperature. In this paper, we will introduce how FREE was used in the implementation of both experiments and give an insight into their didactic approach, such as: (i) how to perform an experimental execution, (ii) the typical data set obtained with, and (iii) the corresponding analysis necessary for the user to retrieve information from it.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44124368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid 90Sr quantification method based on the Bateman equation for routine laboratory work 用于常规实验室工作的基于Bateman方程的90Sr快速定量方法

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2022-12-01 DOI: 10.2478/nuka-2022-0006

Karol Wiatr, B. Rubel, M. Kardaś

引用次数: 0

Intermediates derived from p-terphenyl in the methyltributylammonium bis[(trifluoromethyl)sulfonyl]imide ionic liquid saturated with carbon dioxide: Pulse radiolysis study 二氧化碳饱和的甲基三丁基铵双[（三氟甲基）磺酰基]酰亚胺离子液体中对三苯基衍生的中间体：脉冲辐解研究

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2022-12-01 DOI: 10.2478/nuka-2022-0007

R. Kocia

引用次数: 0

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 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

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2022-09-01 DOI: 10.2478/nuka-2022-0005

T. Szreder

{"title":"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","authors":"T. Szreder","doi":"10.2478/nuka-2022-0005","DOIUrl":"https://doi.org/10.2478/nuka-2022-0005","url":null,"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.","PeriodicalId":19467,"journal":{"name":"Nukleonika","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41299266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Observation of intrapulse energy switching in standing-wave electron linac 驻波电子直线加速器中脉冲内能量转换的观察

IF 0.7 4区物理与天体物理

Nukleonika Pub Date : 2022-09-01 DOI: 10.2478/nuka-2022-0004

M. Matusiak, T. Kosiński, S. Wronka, Tomasz Zakrzewski

引用次数: 0