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SIMULATION USING GEANT 4 OF AXAS-D SYSTEM WITH REGISTRATION K-SERIES OF IODINE IN ACTIVATED CARBON FOR VENTILATION SYSTEMS NPP 使用 Geant 4 对 axas-d 系统进行模拟，并对通风系统 NPP 中活性炭中的碘进行 K 系列登记
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-137
O. Zakharchenko, V. Levenets, O. Lonin, S. Sokolov
{"title":"SIMULATION USING GEANT 4 OF AXAS-D SYSTEM WITH REGISTRATION K-SERIES OF IODINE IN ACTIVATED CARBON FOR VENTILATION SYSTEMS NPP","authors":"O. Zakharchenko, V. Levenets, O. Lonin, S. Sokolov","doi":"10.46813/2024-151-137","DOIUrl":"https://doi.org/10.46813/2024-151-137","url":null,"abstract":"The material shows the results of using the Geant4 program to simulate the operation and capabilities of the SKIF stand when recording radiation K-series with detector the AXAS-D of stable iodine in activated carbon, which is used for air purification at the NPP. The radiation spectra obtained in different situations are shown: at the entrance and exit of the measuring installation; and their processing. The parameters of the registration system were obtained – efficiency and dependence on the thickness of the detector crystal.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":" May","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE STUDY OF GAMMA RADIATION PARAMETERS ON THE COMPUTER MODEL OF THE NEUTRON SOURCE ON THE LINEAR ELECTRON ACCELERATOR 直线电子加速器中子源计算机模型的伽马辐射参数研究
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-128
S. Gokov, V. Horbach, S. Kochetov, L. Kolpakova, O. Lyukhtan, E. Tsiats’ko
{"title":"THE STUDY OF GAMMA RADIATION PARAMETERS ON THE COMPUTER MODEL OF THE NEUTRON SOURCE ON THE LINEAR ELECTRON ACCELERATOR","authors":"S. Gokov, V. Horbach, S. Kochetov, L. Kolpakova, O. Lyukhtan, E. Tsiats’ko","doi":"10.46813/2024-151-128","DOIUrl":"https://doi.org/10.46813/2024-151-128","url":null,"abstract":"In the Geant4 software, with the help of the computer model of the neutron source at the output of the linear electron accelerator, the main characteristics of gamma radiation were determined at the location of the irradiated samples and outside on top of the lead shielding on the large detector. We conducted several computer experiments\u0000on 107 primary electrons with an energy of 25 MeV. The analysis of the obtained data showed that the graphite neutron reflector is also an effective reflector of low-energy gamma quanta (Eγ < 1 MeV), its presence increased the flow of gamma quanta of these energies at the small detector by 30%. At the same time, lead protection reduced the\u0000gamma background on the samples and in the bunker by more than 20 times. The performed calculations proved that lead shielding with a thickness of 5 cm is sufficiently effective for conducting experiments on neutron programs at primary electron energies of 25 MeV.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":" 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141363837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
INVESTIGATION OF THE PARTIAL CHANNEL OF 8Be NUCLEUS GROUND STATE FORMATION IN THE 14N(γ,2α6Li) REACTION 14N (γ,2α6Li) 反应中 8Be 核基态形成的部分通道研究
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-023
S. Afanasiev, I.O. Afanasieva
{"title":"INVESTIGATION OF THE PARTIAL CHANNEL OF 8Be NUCLEUS GROUND STATE FORMATION IN THE 14N(γ,2α6Li) REACTION","authors":"S. Afanasiev, I.O. Afanasieva","doi":"10.46813/2024-151-023","DOIUrl":"https://doi.org/10.46813/2024-151-023","url":null,"abstract":"Using the track 4𝜋-detector method (a diffusion chamber arranged in a magnetic field on the way of a beam of bremsstrahlung photons with the final energy 𝐸𝛾max = 150 MeV), the reaction 14N(γ,2α6Li) has been studied. The distributions of events over the excitation energy of 2𝛼-particles were analyzed and a channel of the formation of the 8Be nucleus in the ground state was revealed and has been separated. Events in which the 𝛼-particle pairs correspond to the formation of the 8Be nucleus in the ground state can be reliably identified. The energy and angular distributions of 𝛼 particles at each stage of decay are analyzed.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":"106 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141361298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
LONG-TERM MAGNETIC STABILITY OF Sm-Co MAGNET FOR THE ACCELRATOR APPLICATIONS 用于加速器应用的钐钴磁体的长期磁稳定性
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-042
V.O. Bovda, O.M. Bovda, I.S. Guk, V.M. Lyashchenko, A.O. Mytsikov, L.V. Onyshchenko, V.M. Podorozhkin
{"title":"LONG-TERM MAGNETIC STABILITY OF Sm-Co MAGNET FOR THE ACCELRATOR APPLICATIONS","authors":"V.O. Bovda, O.M. Bovda, I.S. Guk, V.M. Lyashchenko, A.O. Mytsikov, L.V. Onyshchenko, V.M. Podorozhkin","doi":"10.46813/2024-151-042","DOIUrl":"https://doi.org/10.46813/2024-151-042","url":null,"abstract":"A comparison of measurements of the topology of the magnetic field of a permanent magnet made using the rare earth alloy Sm2Co17, carried out at an interval of 5 years, was made. The data obtained in 2023 indicate that the metrological characteristics of the magnet remained within the limits that were determined in the studies conducted in\u00002018.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":"112 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
LINEAR ACCELERATOR MAGNETIC SYSTEM OF THE NSC KIPT SUBCRITICAL ASSEMBLY “NEUTRON SOURCE” NSC KIPT 亚临界组件 "中子源 "直线加速器磁系统
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-092
I. Karnaukhov, А.О. Mytsykov, А.V. Rezaev, V. Rudenko, D.V. Tarasov, А.Yu. Zelinsky
{"title":"LINEAR ACCELERATOR MAGNETIC SYSTEM OF THE NSC KIPT SUBCRITICAL ASSEMBLY “NEUTRON SOURCE”","authors":"I. Karnaukhov, А.О. Mytsykov, А.V. Rezaev, V. Rudenko, D.V. Tarasov, А.Yu. Zelinsky","doi":"10.46813/2024-151-092","DOIUrl":"https://doi.org/10.46813/2024-151-092","url":null,"abstract":"In NSC KIPT Department of nuclear and accelerator systems the work on Subcritical Assembly “Neutron Source” commissioning is in progress [1, 2]. The driver of the facility is 100 MeV/100 kW electron linear accelerator [3]. One of the important accelerator systems is magnetic system. In the paper the features and characteristics of the NSC 100 MeV/100 kW linear accelerator are represented.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
DYNAMICS OF DEFORMATION FORCES IN SINGLE-PARTICLE SPECTRA OF ODD 2s1d-SHELL NUCLEI ODD 2s1d-SHELL NUCLEI 单粒子光谱中的变形力动力学
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-003
V. Korda, L. P. Korda, V. Klepikov, I. S. Timchenko
{"title":"DYNAMICS OF DEFORMATION FORCES IN SINGLE-PARTICLE SPECTRA OF ODD 2s1d-SHELL NUCLEI","authors":"V. Korda, L. P. Korda, V. Klepikov, I. S. Timchenko","doi":"10.46813/2024-151-003","DOIUrl":"https://doi.org/10.46813/2024-151-003","url":null,"abstract":"With help of our newly-developed evolutionary model-independent approach we have found that with the increase in mass number of all studied odd 2s1d-shell nuclei 23Na, 27Al, 31P, and 35,37Cl the dominant deformation of the shape of these nuclei in low-laying single-particle states changes from quadrupole to hexadecapole and further to hexacontatetrapole. The single states and the continuous sets of states with abnormally weak deformation are found. The points of shape phase transitions with a change in the multipolity of deformation are found in the single-particle spectrum of 37Cl nucleus.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":"107 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141361366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
COMPARISON OF STRUCTURAL DISRUPTIONS ON THE TUNGSTEN SURFACES WHICH INDUCED BY IRRADIATION OF HELIUM IONS BEAMS WITH ENERGIES 0.12 AND 4 MeV 能量为 0.12 和 4 兆电子伏特的氦离子束辐照引起的钨表面结构破坏的比较
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-117
O. Manuilenko, E. Prokhorenko, K. V. Pavlii, B. V. Zajtsev, V. A. Soshenko, V.I. Butenko, T. G. Prokhorenko
{"title":"COMPARISON OF STRUCTURAL DISRUPTIONS ON THE TUNGSTEN SURFACES WHICH INDUCED BY IRRADIATION OF HELIUM IONS BEAMS WITH ENERGIES 0.12 AND 4 MeV","authors":"O. Manuilenko, E. Prokhorenko, K. V. Pavlii, B. V. Zajtsev, V. A. Soshenko, V.I. Butenko, T. G. Prokhorenko","doi":"10.46813/2024-151-117","DOIUrl":"https://doi.org/10.46813/2024-151-117","url":null,"abstract":"Helium ion beams with energies EHe+ = 0.12 and 4 МeV were used to irradiate samples of tungsten with a purity of 99.7%. Graphs of coefficient of the ionization, coefficient of production of phonon and vacancies are obtained. These processes occurred as a result of irradiation. The differential and integral curves of the sputtering coefficient\u0000from the surface of samples of tungsten were constructed, that allowed to determine the number of recoil atoms that reached the surface. The total coefficients of displacements on the surface of the samples were calculated. These characteristics are compared with similar characteristics obtained by irradiating of samples of tungsten (tungsten samples) with a purity of 99.5% with helium ions (0.12, 4 MeV). Areas in which the characteristics are similar and areas where these characteristics differ are marked.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":"118 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RADIATION MAPPING OF THE BORZHAVA RIVER AREAS, TISZA BASIN: PECULIARITIES OF RADIONUCLIDE DISTRIBUTION AND ORGANISATIONAL AND MANAGERIAL SUPPORT OF MOUNTAINOUS TERRITORIES 蒂萨河流域博尔扎瓦河地区的辐射绘图：放射性核素分布的特殊性以及山区的组织和管理支持
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-148
O. Symkanych, N. Svatiuk, V.T. Maslyuk, K. Krch, O.T. Devinyak, M.Yu. Тokar, S.S. Milyovich, O. Glukh
{"title":"RADIATION MAPPING OF THE BORZHAVA RIVER AREAS, TISZA BASIN: PECULIARITIES OF RADIONUCLIDE DISTRIBUTION AND ORGANISATIONAL AND MANAGERIAL SUPPORT OF MOUNTAINOUS TERRITORIES","authors":"O. Symkanych, N. Svatiuk, V.T. Maslyuk, K. Krch, O.T. Devinyak, M.Yu. Тokar, S.S. Milyovich, O. Glukh","doi":"10.46813/2024-151-148","DOIUrl":"https://doi.org/10.46813/2024-151-148","url":null,"abstract":"The article presents the results of radioecological studies of the Borzhava River, which is an integral part of a comprehensive study of the Tisza River water systems and their impact on the hydrological balance of the region. To study the processes of migration, accumulation, and prediction of the behavior of gamma-active nuclides (natural\u000040K, 238U, and 232Th series and man-made 137Cs), the spatial and seasonal distribution of these nuclides in the river bottom sediments was mapped. Seasonal fluctuations in the concentration of 137Cs, 40K, 238U, and 232Th activity in spring, autumn, and summer were determined. A multivariate statistical analysis was carried out, establishing the\u0000degree of correlation between the sampling points regarding the content of gamma-active nuclides. The research and generalization of the regularities of distribution, migration, and accumulation of gamma-active nuclides can be used to develop regulatory and legal documentation.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":"123 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PASSIVE PLASMA LENS, REDUCING ENERGY SPREAD OF GAUSSIAN-KIND BUNCHES 被动等离子体透镜，减少高斯束的能量扩散
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-067
I. V. Demydenko, V. Maslov
{"title":"PASSIVE PLASMA LENS, REDUCING ENERGY SPREAD OF GAUSSIAN-KIND BUNCHES","authors":"I. V. Demydenko, V. Maslov","doi":"10.46813/2024-151-067","DOIUrl":"https://doi.org/10.46813/2024-151-067","url":null,"abstract":"Acceleration by the wakefield in the plasma can provide compact sources of relativistic electron beams of high brightness. Free electron lasers and particle colliders, using plasma wakefield accelerators, require high efficiency and beams with low energy spread. In this paper, we investigated by numerical simulation the focusing of Gaussiankind bunches by a passive plasma lens depending on their length. We have shown that for a homogeneous focusing field and to prevent loss of energy from bunches, the presence of an electron bunch-precursor is necessary. This plasma lens decreases the energy spread of bunches, since the first front of the bunch, which is of more energy, is in decelerating field, and its back front, which is of smaller energy, is in accelerating field. In addition, we investigated the evolution of the bunches with time to visually demonstrate the effect of the plasma lens in the wakefield accelerator.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":"114 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IMPROVING THE FUNCTIONALITY OF THE SMALL-DIMENSION ACCELERATOR DIN-2K WITH A PLASMA OPENING SWITCH 利用等离子体开放开关改进小型加速器 DIN-2K 的功能
Problems of Atomic Science and Technology Pub Date : 2024-06-10 DOI: 10.46813/2024-151-060
D. Vinnikov, V. Katrechko, O. Manuilenko, O.M. Ozerov, I.N. Onishchenko, V.I. Tkachev, V. Yuferov, S.V. Marchenko
{"title":"IMPROVING THE FUNCTIONALITY OF THE SMALL-DIMENSION ACCELERATOR DIN-2K WITH A PLASMA OPENING SWITCH","authors":"D. Vinnikov, V. Katrechko, O. Manuilenko, O.M. Ozerov, I.N. Onishchenko, V.I. Tkachev, V. Yuferov, S.V. Marchenko","doi":"10.46813/2024-151-060","DOIUrl":"https://doi.org/10.46813/2024-151-060","url":null,"abstract":"Experimental studies were carried out to establish the effect of the parameters of various components of an electronic accelerator with an IES cell and a POS on the values of the current and the power of the accelerated beam. The studies were focused on the choice of the parameter ratio for the discharge circuit of the inductive energy storage cell, geometric shape and material of the cathode, size of the anode-cathode gap and dielectric inserts. The established optimal set of the specified parameters made it possible to obtain a pulsed electron beam with a duration of 200 ns, a current of 30 kA and a power of 6 GW.","PeriodicalId":510408,"journal":{"name":"Problems of Atomic Science and Technology","volume":" February","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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