Pub Date : 2019-12-30DOI: 10.37005/1818-0744-2019-4-48-54
A.M. Abackumov, L. Tayibov, T. Tsogsaihan
This work is devoted to investigation of fluctuations of pulse energy of the IBR-2M reactor by the method of statistical analysis. There is a description of structural features of the IBR-2M reactor in this work and its main parameters are given. The principle of the creation of neutron pulses is shown. The work also contains a description of the method of statistical analysis and further calculations made by this method. Having the received data, a comparison of the estimates of the standard deviation with the available results for 2012 was made.
{"title":"THE STUDY NOISE OF THE PULSE ENERGY OF THE IBR-2M REACTOR","authors":"A.M. Abackumov, L. Tayibov, T. Tsogsaihan","doi":"10.37005/1818-0744-2019-4-48-54","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-4-48-54","url":null,"abstract":"This work is devoted to investigation of fluctuations of pulse energy of the IBR-2M reactor by the method of statistical analysis. There is a description of structural features of the IBR-2M reactor in this work and its main parameters are given. The principle of the creation of neutron pulses is shown. The work also contains a description of the method of statistical analysis and further calculations made by this method. Having the received data, a comparison of the estimates of the standard deviation with the available results for 2012 was made.","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116333261","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}
Pub Date : 2019-12-30DOI: 10.37005/1818-0744-2019-4-3-5
M. Kakenov, E. Zemlyanaya
The MPI implementation of the calculation of the microscopic optical potential of nucleon-nucleus scattering within the single folding model has been developed. The folding potential and the corresponding differential cross section of the 11Li + p elastic scattering have been calculated at 62 MeV/nucleon on the heterogeneous cluster "HybriLIT" of the Multifunctional Information and Computational Complex (MICC) of the Laboratory of Information Technologies of JINR. The agreement between experimental data and numerical results for various models of the 11Li density distribution used in the construction of the folding potential is demonstrated
{"title":"CALCULATION OF THE 11LI + P ELASTIC SCATTERING CROSS SECTIONS USING THE FOLDING OPTICAL POTENTIAL","authors":"M. Kakenov, E. Zemlyanaya","doi":"10.37005/1818-0744-2019-4-3-5","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-4-3-5","url":null,"abstract":"The MPI implementation of the calculation of the microscopic optical potential of nucleon-nucleus scattering within the single folding model has been developed. The folding potential and the corresponding differential cross section of the 11Li + p elastic scattering have been calculated at 62 MeV/nucleon on the heterogeneous cluster \"HybriLIT\" of the Multifunctional Information and Computational Complex (MICC) of the Laboratory of Information Technologies of JINR. The agreement between experimental data and numerical results for various models of the 11Li density distribution used in the construction of the folding potential is demonstrated","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"7 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128867089","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}
Pub Date : 2019-12-30DOI: 10.37005/1818-0744-2019-4-38-47
V.A. Tainov
Within the domain model of QCD vacuum the properties of a statistical ensemble of almost everywhere homogeneous Abelian (anti-)self-dual gluon fields representing the physical vacuum of quantum chromodynamics are investigated. The two-point correlation function of the topological charge density is calculated and the topological susceptibility is found. It is shown that such vacuum fields ensure the implementation of the area law for the Wilson loop, i.e. the confinement of static quarks.
{"title":"DOMAIN WALL NETWORK AS QCD VACUUM: CORRELATION FUNCTIONS AND CONFINEMENT OF STATIC QUARKS","authors":"V.A. Tainov","doi":"10.37005/1818-0744-2019-4-38-47","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-4-38-47","url":null,"abstract":"Within the domain model of QCD vacuum the properties of a statistical ensemble of almost everywhere homogeneous Abelian (anti-)self-dual gluon fields representing the physical vacuum of quantum chromodynamics are investigated. The two-point correlation function of the topological charge density is calculated and the topological susceptibility is found. It is shown that such vacuum fields ensure the implementation of the area law for the Wilson loop, i.e. the confinement of static quarks.","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114691850","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}
Pub Date : 2019-12-30DOI: 10.37005/1818-0744-2019-4-11-16
K.V. Kurlapova, S. Zeynalov
This article is devoted to the study of the principles of operation of a pulsed ionization chamber, in which particles emitted from a target create a sequence of well-isolated current pulses (the distance between pulses is several times greater than their width). Firstly, using the Ramo-Shockley theorem, the mechanisms of forming signals on the electrodes of an ionization chamber with Frisch nets are considered, then it is shown how information on energy and spatial orientation of particles can be extracted from such signals using modern electronic pulse digitizers.
{"title":"EQUIPMENT FOR THE STUDY OF DIVISION PROCESSES","authors":"K.V. Kurlapova, S. Zeynalov","doi":"10.37005/1818-0744-2019-4-11-16","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-4-11-16","url":null,"abstract":"This article is devoted to the study of the principles of operation of a pulsed ionization chamber, in which particles emitted from a target create a sequence of well-isolated current pulses (the distance between pulses is several times greater than their width). Firstly, using the Ramo-Shockley theorem, the mechanisms of forming signals on the electrodes of an ionization chamber with Frisch nets are considered, then it is shown how information on energy and spatial orientation of particles can be extracted from such signals using modern electronic pulse digitizers.","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124017517","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}
Pub Date : 2019-12-30DOI: 10.37005/1818-0744-2019-4-31-37
V. Fokina, E.А. Kizima, I.V. Miheev, A. Ivankov, V. Garamus
Two types of fullerene C60 water dispersions were investigated by a small-angle X-ray and neutron scattering. As a result, structural parameters of fullerene aggregates were obtained. The water dispersions were obtained by the solvent-exchange technique and by huge dilution of initial C60/Nmethylpyrrolidone solution. The structure organization of water dispersions is considered in respect to their technique preparation. It was shown that fullerene aggregates were characterized by highly polydispersity in size for all dispersions. In the case of son/nC60 dispersion it was found that fullerenes formed aggregates with a dense nucleus (namely a surface fractal) with a radius of 58 ± 1 nm and a fractal dimension of 2.3. In turn, the nmp/nC60 system was characterized by the branched aggregates with fractal dimension 1.5 and bimodal particle size distribution.
{"title":"STRUCTURAL PARAMETERS OF AQUEOUS COLLOIDAL DISPERSIONS OF FULLERENE C60","authors":"V. Fokina, E.А. Kizima, I.V. Miheev, A. Ivankov, V. Garamus","doi":"10.37005/1818-0744-2019-4-31-37","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-4-31-37","url":null,"abstract":"Two types of fullerene C60 water dispersions were investigated by a small-angle X-ray and neutron scattering. As a result, structural parameters of fullerene aggregates were obtained. The water dispersions were obtained by the solvent-exchange technique and by huge dilution of initial C60/Nmethylpyrrolidone solution. The structure organization of water dispersions is considered in respect to their technique preparation. It was shown that fullerene aggregates were characterized by highly polydispersity in size for all dispersions. In the case of son/nC60 dispersion it was found that fullerenes formed aggregates with a dense nucleus (namely a surface fractal) with a radius of 58 ± 1 nm and a fractal dimension of 2.3. In turn, the nmp/nC60 system was characterized by the branched aggregates with fractal dimension 1.5 and bimodal particle size distribution.","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134580432","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}
The paper studies the statistics of pion production in the processes of inelastic hadronhadron collisions at high energies. It is assumed that the multiple birth of particles occurs as a result of the hadronization process of the quark-gluon "fireball". Based on the two selected states – the state of thermal equilibrium and the coherent state – the statistics of the production of pions is calculated
{"title":"STATISTICS OF BIRTH PIONS FROM THE HADRON \"FIREBALL\"","authors":"A. Chizhov, E. A. Kasyanova","doi":"10.37005/2019-4-6-10","DOIUrl":"https://doi.org/10.37005/2019-4-6-10","url":null,"abstract":"The paper studies the statistics of pion production in the processes of inelastic hadronhadron collisions at high energies. It is assumed that the multiple birth of particles occurs as a result of the hadronization process of the quark-gluon \"fireball\". Based on the two selected states – the state of thermal equilibrium and the coherent state – the statistics of the production of pions is calculated","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123656628","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}
Pub Date : 2019-12-30DOI: 10.37005/1818-0744-2019-4-24-30
T. Orazgali
The deep underwater Neutrino Telescope Baikal NT1000 has been deployed in Lake Baikal since 2015. Detector is mainly designed to study astrophysical neutrino fluxes at energies from a few TeV up to 100 PeV. The first stage NT1000 will be an array of 2300 optical modules with an instrumental volume of about 0.4 cubic kilometers, which is planned to be completed by 2020–2021. The properties of Baikal water and a combination of other related circumstances make it possible to create a unique installation in the world practice in sensitivity and angular resolution, opening up new horizons in astronomy and astrophysics. In this article basic information about the NT1000 and the being developed method to measure the optical characteristics at the detector’s water medium using a high-power laser light source are provided.
{"title":"MEASURING THE OPTICAL CHARACTERISTICS AT THE BAIKAL NEUTRINO TELESCOPE SITE","authors":"T. Orazgali","doi":"10.37005/1818-0744-2019-4-24-30","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-4-24-30","url":null,"abstract":"The deep underwater Neutrino Telescope Baikal NT1000 has been deployed in Lake Baikal since 2015. Detector is mainly designed to study astrophysical neutrino fluxes at energies from a few TeV up to 100 PeV. The first stage NT1000 will be an array of 2300 optical modules with an instrumental volume of about 0.4 cubic kilometers, which is planned to be completed by 2020–2021. The properties of Baikal water and a combination of other related circumstances make it possible to create a unique installation in the world practice in sensitivity and angular resolution, opening up new horizons in astronomy and astrophysics. In this article basic information about the NT1000 and the being developed method to measure the optical characteristics at the detector’s water medium using a high-power laser light source are provided.","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131227218","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}
Pub Date : 2019-12-30DOI: 10.37005/1818-0744-2019-4-17-23
A.A. Moldagaliyeva, S. Ershov
This paper provides an overview of the experimental data on the 19C nucleus, which qualify its structure as a nucleus with a singleneutron halo. A theoretical approach (two-body cluster model) is described, which allows to take into account the specificity of the halo structure.
{"title":"STRUCTURE OF ONE-NEUTRON HALO IN THE 19C NUCLEUS","authors":"A.A. Moldagaliyeva, S. Ershov","doi":"10.37005/1818-0744-2019-4-17-23","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-4-17-23","url":null,"abstract":"This paper provides an overview of the experimental data on the 19C nucleus, which qualify its structure as a nucleus with a singleneutron halo. A theoretical approach (two-body cluster model) is described, which allows to take into account the specificity of the halo structure.","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133013711","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}
Pub Date : 2019-12-27DOI: 10.37005/1818-0744-2019-3-24-26
I. A. Gogin, N.V. Lomakin, S. A. Kozlov
In the present article discusses «Сombined alarm system and active protection «Skunk», designed to protect against theft of valuable property. The principle of action on an attacker is smoke and light noise exposure. The project is being developed at NPK «Dedal» JSC and is at the stage of outline documentation and preparation for the assembly of a prototype. The article describes the basic principle of the product. The composition is proposed and the alleged technical characteristics of the product are described, which clearly show its competitiveness.
{"title":"COMBINED ALARM SYSTEM AND ACTIVE PROTECTION «SKUNK»","authors":"I. A. Gogin, N.V. Lomakin, S. A. Kozlov","doi":"10.37005/1818-0744-2019-3-24-26","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-3-24-26","url":null,"abstract":"In the present article discusses «Сombined alarm system and active protection «Skunk», designed to protect against theft of valuable property. The principle of action on an attacker is smoke and light noise exposure.\u0000The project is being developed at NPK «Dedal» JSC and is at the stage of outline documentation and preparation for the assembly of a prototype.\u0000The article describes the basic principle of the product. The composition is proposed and the alleged technical characteristics of the product are described, which clearly show its competitiveness.","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122222500","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}
Pub Date : 2019-12-27DOI: 10.37005/1818-0744-2019-3-9-17
V. Babkin, S. Buzin, A. Burdyko, M. Buryakov, N. Gorbunov, A. Dmitriev, P. Dulov, M. Rumyantsev
In the present article discusses the design and characteristics of a multi-gap resistive plate chamber (MRPC) with a 15 cm strips and analogue readout. The results of studies of the characteristics of the developed structure of MRPK using cosmic rays are presented.
{"title":"STUDY OF A PROTOTYPE THE MULTI-GAP RESISTIVE PLATE CHAMBER WITH SHORT STRIPS AND ANALOGUE READOUT","authors":"V. Babkin, S. Buzin, A. Burdyko, M. Buryakov, N. Gorbunov, A. Dmitriev, P. Dulov, M. Rumyantsev","doi":"10.37005/1818-0744-2019-3-9-17","DOIUrl":"https://doi.org/10.37005/1818-0744-2019-3-9-17","url":null,"abstract":"In the present article discusses the design and characteristics of a multi-gap resistive plate chamber (MRPC) with a 15 cm strips and analogue readout. The results of studies of the characteristics of the developed structure of MRPK using cosmic rays are presented.","PeriodicalId":306467,"journal":{"name":"Bulletin of Dubna International University for Nature, Society, and Man. Series: Natural and engineering sciences","volume":"16 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121041756","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}
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