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Design development of double-layer beam shaping assembly using extension nozzle to increase the quality of epithermal neutron beam as a boron neutron capture therapy neutron source 为提高超热中子束作为硼中子俘获治疗中子源的质量，采用延长喷嘴的双层束成形组件的设计开发
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-12-25 DOI: 10.15407/jnpae2021.04.415
Bilalodin, A. Haryadi, Kartika Sari, Y. Sardjono, RasitoTursinah
{"title":"Design development of double-layer beam shaping assembly using extension nozzle to increase the quality of epithermal neutron beam as a boron neutron capture therapy neutron source","authors":"Bilalodin, A. Haryadi, Kartika Sari, Y. Sardjono, RasitoTursinah","doi":"10.15407/jnpae2021.04.415","DOIUrl":"https://doi.org/10.15407/jnpae2021.04.415","url":null,"abstract":"Double layer beam shaping assembly (DLBSA) is a system that moderates fast neutrons into epithermal neutrons. The epithermal neutrons that leave the aperture in the DLBSA system are broadened in the space, thereby reducing the intensity and homogeneity of the epithermal neutron beams. Therefore, it is necessary to improve the design. The development of the DLBSA design was carried out using an extension nozzle. The nozzles are designed using materials made in three configurations, namely Ni+LiF load polyethylene, Pb+LiF load polyethylene, and Bi+LiF load polyethylene. The simulation results show that the addition of a nozzle at the tip of the DLBSA can channel the beam more directionally with high intensity. The addition of nozzles with Ni+LiF load PE material produces an epithermal neutron beam that meets the IAEA standards.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"447 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82908913","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
Principal provisions of the decommissioning concept for the WWR-M research reactor WWR-M研究堆退役概念的主要规定
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-12-25 DOI: 10.15407/jnpae2021.04.348
Y. Lobach, E. Luferenko, M. Lysenko, V. M. Shevel
{"title":"Principal provisions of the decommissioning concept for the WWR-M research reactor","authors":"Y. Lobach, E. Luferenko, M. Lysenko, V. M. Shevel","doi":"10.15407/jnpae2021.04.348","DOIUrl":"https://doi.org/10.15407/jnpae2021.04.348","url":null,"abstract":"The decommissioning Concept for WWR-M research reactor is developed to meet the requirements of the current Ukrainian legislation. The main goal of the Concept is to provide a strategic stage of the work planning, including all the required justifications with a sufficient level of detail. It will allow during the next planning stage to develop the decommissioning project and other documents required to obtain the decommissioning license. The Concept is the institutional and technical document, which defines and substantiates the basic administrative, organizational, and technical measures for the preparation and implementation of the reactor decommissioning. It also describes the main activities and works, defines the procedure, conditions for their implementation and provision, and planned deadlines.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"64 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89074644","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: 3
Impact of chronic irradiation of IMV 9096 and IMV 8614 strains of Pseudomonas aeruginosa on immunomodulatory properties of their lipopolysaccharide complex 慢性照射铜绿假单胞菌IMV 9096和IMV 8614菌株对其脂多糖复合物免疫调节特性的影响
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-12-25 DOI: 10.15407/jnpae2021.04.375
J. V. Shylina, O. Molozhava, S. Litvinov, O. P. Dmitriev
{"title":"Impact of chronic irradiation of IMV 9096 and IMV 8614 strains of Pseudomonas aeruginosa on immunomodulatory properties of their lipopolysaccharide complex","authors":"J. V. Shylina, O. Molozhava, S. Litvinov, O. P. Dmitriev","doi":"10.15407/jnpae2021.04.375","DOIUrl":"https://doi.org/10.15407/jnpae2021.04.375","url":null,"abstract":"The effect of chronic irradiation of Pseudomonas aeruginosa (P. aeruginosa) phytopathogenic strain IMV 9096 and saprophytic strain IMV 8614 at a dose rate of 0.19 µGy/s of γ-radiation in the dose field of 137Cs on the immunomodulatory properties of their lipopolysaccharide (LPS) has been investigated. It was shown that in the wild-type seedlings of Arabidopsis thaliana (A. thaliana) Col-0 pre-treatment with LPS 9096, isolated from both irradiated and non-irradiated bacterial culture, caused an increased harmful effect 2.8 - 5.6 fold when plants were then infected with bacteria of this strain. Seedling damage was more pronounced with the use of LPS, isolated from bacteria exposed to chronic radiation. In seedlings of mutant jin1 with impaired jasmonate signaling pre-treatment of LPS 9096 caused attenuation of the damage at 20 - 45 % when infected with P. aeruginosa 9096. Pre-treatment of Arabidopsis seeds with bacterial LPS 8614, obtained from both irradiated and non-irradiated P. aeruginosa 8614 cultures, had a non-significant effect (± 15 % over control). In mutant plants, jin1 pre-treatment of seeds with LPS 8614 led to increased damage when infected with P. aeruginosa IMV 9096 at 30 - 60 %. It was found that chronic irradiation of bacteria changes the immunomodulatory properties of their LPS and the effect depends on the bacterial strain. This effect is mediated by jasmonate and salicylate signaling systems.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83967111","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 137Сs content in tissues and organs of scots pine (Pinus sylvestris L.) in moist fairly infertile pine type of Polissya of Ukraine after Chornobyl accident 切尔诺贝利事故后乌克兰Polissya湿润相当不育林型苏格兰松(Pinus sylvestris L.)组织器官中137Сs含量的动态变化
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-12-25 DOI: 10.15407/jnpae2021.04.382
V. Krasnov, O. Оrlov, O.V. Zhukovskyi
{"title":"Dynamics of 137Сs content in tissues and organs of scots pine (Pinus sylvestris L.) in moist fairly infertile pine type of Polissya of Ukraine after Chornobyl accident","authors":"V. Krasnov, O. Оrlov, O.V. Zhukovskyi","doi":"10.15407/jnpae2021.04.382","DOIUrl":"https://doi.org/10.15407/jnpae2021.04.382","url":null,"abstract":"Based on multiyear monitoring observations, dynamics of 137Сs intake into the main tissues and organs of aboveground phytomass of Scots pine (Pinus sylvestris L.) during 30 years from the Chornobyl accident was determined as well peculiarities of their radioactive contamination. Empirical (observations), radioecological and statistical methods were used. It was found that for the wood increase of values of transfer factor was observed between 1991 and 2002 yrs with the further monotonous decrease of this value up to 2020; in internal bark, 1-year shoots, 2-year shoots, 1-year needles, 2-year needles, twigs thick and twigs thin multiyear dynamics was similar – an increase of values of transfer factor in the period of 1991 - 2002 yrs with further decrease of it up to 2020. At external bark, monotonous decrease of values of transfer factor was found during the whole observation period 1991 - 2020.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84326677","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
Further results from DAMA/LIBRA-phase2 and perspectives DAMA/LIBRA-phase2和透视图的进一步结果
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-12-25 DOI: 10.15407/jnpae2021.04.329
R. Bernabei, P. Belli, A. Bussolotti, V. Caracciolo, F. Cappella, R. Cerulli, C. Dai, A. d’Angelo, N. Ferrari, A. Incicchitti, A. Leoncini, X. Ma, A. Mattei, V. Merlo, F. Montecchia, X. Sheng, Z. Ye
{"title":"Further results from DAMA/LIBRA-phase2 and perspectives","authors":"R. Bernabei, P. Belli, A. Bussolotti, V. Caracciolo, F. Cappella, R. Cerulli, C. Dai, A. d’Angelo, N. Ferrari, A. Incicchitti, A. Leoncini, X. Ma, A. Mattei, V. Merlo, F. Montecchia, X. Sheng, Z. Ye","doi":"10.15407/jnpae2021.04.329","DOIUrl":"https://doi.org/10.15407/jnpae2021.04.329","url":null,"abstract":"The data collected by the DAMA/LIBRA-phase2 set-up during two additional annual cycles have been analyzed, further investigating the long-standing model-independent annual modulation effect pointed out by DAMA deep underground at the Gran Sasso National Laboratory of the I.N.F.N. by using various different experimental configurations. Including the new results, the total exposure of DAMA/LIBRA-phase2 over 8 annual cycles is 1.53 t·yr and the evidence for a signal that meets all the requirements of the model-independent Dark Matter annual modulation signature is 11.8 σ C.L. in the energy region (1 - 6) keV. In the (2 - 6) keV energy interval, where data are also available from DAMA/NaI and DAMA/LIBRA-phase1, the achieved C.L. for the full exposure of 2.86 t·yr is 13.7 σ. No systematics or side reaction able to mimic this signature (i.e., to account for the whole measured modulation amplitude and to simultaneously satisfy all the requirements of the signature) has been found or suggested by anyone throughout some decades thus far. A preliminary result on the further lowering of the software energy threshold and perspectives are also mentioned.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"54 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86374554","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: 14
Nuclear security risks in Ukraine 乌克兰的核安全风险
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-12-25 DOI: 10.15407/jnpae2021.04.409
V. I. Gavrilyuk, S. Drapey, B.V. Kaydyk, V. Kirischuk, V. Parkhomenko, O. Romanova, A. Samsonenko, E. I. Katunin, A.V. Boyko
{"title":"Nuclear security risks in Ukraine","authors":"V. I. Gavrilyuk, S. Drapey, B.V. Kaydyk, V. Kirischuk, V. Parkhomenko, O. Romanova, A. Samsonenko, E. I. Katunin, A.V. Boyko","doi":"10.15407/jnpae2021.04.409","DOIUrl":"https://doi.org/10.15407/jnpae2021.04.409","url":null,"abstract":"An approach to conducting a qualitative risk assessment in the field of nuclear security was developed. Nuclear security events that might, with a certain probability, take place in Ukraine were identified. Using the method of expert assessment, qualitative assessments of the probabilities of the implementation of identified events and the levels of their consequences were obtained, a matrix of consequences/probabilities, in which Fibonacci numbers were applied when setting the limit values оf risks, was built and a qualitative assessment of risks was carried out. It has been established that in the field of Ukraine's nuclear security, the risk of sabotage at nuclear power plants is the greatest.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"5 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81666280","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: 1
Determination of the nuclear radius parameter using the γ-ray spectrometer 用γ射线谱仪测定核半径参数
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-12-25 DOI: 10.15407/jnpae2021.04.343
P. Patil, G. B. Hiremath, A. Vinayak, M. Hosamani, V.P. Singh, N. M. Badiger
{"title":"Determination of the nuclear radius parameter using the γ-ray spectrometer","authors":"P. Patil, G. B. Hiremath, A. Vinayak, M. Hosamani, V.P. Singh, N. M. Badiger","doi":"10.15407/jnpae2021.04.343","DOIUrl":"https://doi.org/10.15407/jnpae2021.04.343","url":null,"abstract":"The nuclear radius parameter of carbon, aluminium, iron, copper, and zinc nuclei has been determined by using (n,γ)-reaction. The neutrons from the americium-beryllium source are made to interact with the water moderator to produce the γ-rays of 2.2 MeV through (n,γ)-reaction. The γ-radiation emitted from the water medium is measured with a scintillation detector coupled to 8k multi-channel analyzer. The neutrons from the americium-beryllium source are allowed to transmit through carbon, aluminium, iron, copper, and zinc elemental targets of various thicknesses, and transmitted neutrons are again allowed to interact with water moderators to produce 2.2 MeV γ-radiation. By measuring the yield of γ-radiation produced in water moderators by neutrons transmitted through elemental targets of different mass number values, the total neutron interaction cross-sections are determined. By knowing the total neutron interaction cross-sections and mass number of the target nuclei, the radius parameter has been determined.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"13 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78635268","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
Еffect of fullerene C60 on the diffusion of organic solvents' molecules Еffect富勒烯C60对有机溶剂分子扩散的影响
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-09-25 DOI: 10.15407/jnpae2021.03.259
V. I. Slisenko, O. Vasylkevych
{"title":"Еffect of fullerene C60 on the diffusion of organic solvents' molecules","authors":"V. I. Slisenko, O. Vasylkevych","doi":"10.15407/jnpae2021.03.259","DOIUrl":"https://doi.org/10.15407/jnpae2021.03.259","url":null,"abstract":"The results of studying the dynamics of molecules of solutions of fullerene C60 in benzene and toluene are presented. The studies were carried out by the method of quasi-elastic scattering of slow neutrons. The following were determined: the total self-diffusion coefficient D, its collective Dcoll and single-particle Ds-p contributions, and molecule relaxation time τ0 before and after the dissolution of fullerene. It is necessary to pay attention to the fact that in our case a kind of neutron contrast experiment takes place. The significant difference (more than ten times) in the cross-sections for an incoherent scattering of neutrons by hydrogen and carbon nuclei made it possible to obtain diffusion parameters that characterize the dynamics of solvent molecules exclusively. It turned out that the intensity of diffusion movements of solvent molecules is almost ten times higher than the mobility of fullerene molecules.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"70 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86748743","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
Inductive hyperthermia planning for patients with breast cancer metastasis to lymph nodes 乳腺癌淋巴结转移患者的诱导热疗计划
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-09-25 DOI: 10.15407/jnpae2021.03.312
O. Mokhonko, V. Orel, I. Smolanka Sr, L. Syvak, A. Loboda, I. Dosenko, A. Lyashenko, I.I. Smolanka (Jr.), O. Rykhalskyi, V. B. Orel, O. Dasyukevich, T. Tarasenko, S. I. Vovyanko
{"title":"Inductive hyperthermia planning for patients with breast cancer metastasis to lymph nodes","authors":"O. Mokhonko, V. Orel, I. Smolanka Sr, L. Syvak, A. Loboda, I. Dosenko, A. Lyashenko, I.I. Smolanka (Jr.), O. Rykhalskyi, V. B. Orel, O. Dasyukevich, T. Tarasenko, S. I. Vovyanko","doi":"10.15407/jnpae2021.03.312","DOIUrl":"https://doi.org/10.15407/jnpae2021.03.312","url":null,"abstract":"Inductive hyperthermia treatment plans were built using Comsol Multiphysics software for patients with breast cancer metastasis to lymph nodes. To assess the influence of electromagnetic irradiation on temperature increase in metastatic lymph nodes, treatment plans were based on moderate hyperthermia parameters (< 42 °C). The proposed technology can be used to provide a more personalized approach to treatment planning for patients with locally advanced breast cancer receiving combination therapy which involves neoadjuvant chemotherapy and expand eligibility for organ-preserving surgery.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"17 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75134350","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
Evaluation of cross-section data for radionuclides used in positron emission tomography by effects of level density models using EMPIRE 3.2.2 code 利用EMPIRE 3.2.2代码用水平密度模型评价正电子发射断层扫描中放射性核素的截面数据
IF 0.3
Nuclear Physics and Atomic Energy Pub Date : 2021-09-25 DOI: 10.15407/jnpae2021.03.237
G. Hasan, E. Nury, F. Groppi
{"title":"Evaluation of cross-section data for radionuclides used in positron emission tomography by effects of level density models using EMPIRE 3.2.2 code","authors":"G. Hasan, E. Nury, F. Groppi","doi":"10.15407/jnpae2021.03.237","DOIUrl":"https://doi.org/10.15407/jnpae2021.03.237","url":null,"abstract":"This work presents the evaluated results of cross-sections for natural chromium (natCr) with several nuclear reactions of natCr(d,x)52g,m+Mn, natCr(d,x)54Mn, natCr(d,x)51Cr, and natCr(d,x)48V using the statistical nuclear model EMPIRE 3.2.2 code with different level density models, for some radionuclides used in positron emission tomography. We compared the results to data sets found in literature, and data chosen from various sets of the electronic TENDL library.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"458 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2021-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79796930","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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