National Research Nuclear University Moscow Engineering Physics Institute Research Articles

Preface

We are pleased to introduce the Proceedings of the III conference Personnel training and legal support for the implementation of research projects of the MegaScience class (June 17, 2021) organized by the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) and the Kutafin Moscow State Law University (MSAL).The purpose of the conference is to discuss issues of personnel training and legal regulations of implementing research projects of the “MegaScience” class. The conference participants presented both positive and negative experiences in implementing scientific projects of the “MegaScience” class, their status, problems of their legal regulation, and problems of international scientific cooperation. The participants also proposed ideas for improving the regulations of the organization of these projects.Due to the current restrictions caused by the coronavirus infection COVID-19, the conference was held online with the help of video communication systems.The received papers were reviewed according to the Journal of Physics: Conference Series standards and to the scientific criteria developed by organizers. This journal volume includes 22 papers devoted to various aspects of cooperation in the field of “MegaScience” class projects. The organizing committee is very grateful to the following:• Ministry of Science and Higher Education of the Russian Federation, National Research Center «Kurchatov Institute», ROSATOM, Russian Foundation for Basic Research• Participants of the conference for their valuable contribution with the delivered presentations and interesting papers• Conference program committee co-chairman: Strikhanov M.N., rector of National Research Nuclear University MEPhI, and Blazheev V.V., rector of the Kutafin Moscow State Law University• Personnel of Journal of Physics for the support and communicationThis volume of the Journal of Physics: Conference Series was issued with the financial support provided by the Russian Foundation for Basic Research (grant. 18-29-15036 mk «Models of legal regulations of unique scientific facilities of “MegaScience” class at the national and international levels in the context of technological development of the Russian Federation»).Editors: Anatoly Petrukhin (MEPhI), Daria Moshkova (MSAL), Dmitry Lozovskij (MEPhI).

Peer Review Statement

All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.• Type of peer review: Single Anonymous• Conference submission management system: Morressier• Number of submissions received: 27• Number of submissions sent for review: 25• Number of submissions accepted: 22• Acceptance Rate (Submissions Accepted / Submissions Received × 100):81.5• Average number of reviews per paper: 2• Total number of reviewers involved: 12• Contact person for queries: Name: Anton Smirnov Email: ADSmirnov@mephi.ru Affiliation: National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, 115409, Russia

The Use of Virtual Reality Technologies in the Specialists’ Training in the Field of Information Security

The paper presents a study of ready-made solutions and ways to use virtual reality (VR) technologies in training specialists. Due to the lack of tools that meet the needs of such preparation in the field of information security (IS), when students study network attacks and ways of protection against them, a training and laboratory complex using the Unity development environment for educational purposes were developed. It is intended for a detailed study of current network attacks implementation and development of protection measures against them. The educational and laboratory bench includes a VR testbed and its algorithmic support successfully tested in the educational process of the the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) within the framework of the discipline "Secure Information Systems".

Microstructure formation and mechanical properties of isothermally-solidified titanium alloy joints brazed by a Ti – Zr – Cu – Ni – Be amorphous alloy foil

Two titanium alloys, OT4 and VT6-c, with a pseudo-α and α + β structure, respectively, were brazed using transient liquid phase (TLP) bonding. To obtain high strength joints an amorphous foil (Ti – 12Zr – 22Cu – 12Ni – 1.5 Be – 0.8V wt.%) was used. Based on microstructural studies and analysis of two- and three-component phase diagrams, the mechanism of the microstructural evolution of the brazed seams of titanium alloys OT4 and VT6-c is described. Brazing at 800 °C with exposure for 0.5 h leads to the formation of a heterogeneous structure consisting of Widmanstätten, eutectoid, and eutectic. Brazed OT4 and VT6-c joints with the presence of a eutectic layer in the centre show low mechanical properties; their ultimate strength lies in a range from 200 to 550 MPa. Increasing the brazing temperature to 840 °C and the exposure time to 2 h, leads to the disappearance of the brittle eutectic component from the seam. This structure typically consists of Widmanstätten with a small number of eutectoid fractions. Joints with the absence of a eutectic layer in the brazed seam demonstrate a strength equal to the base titanium alloys. In this case, failure occurs in the base metal. For brazed samples from the OT4 alloy, the tensile strength value is σb = 750 ± 3 MPa, and for samples from VT6-c, σb = 905 ± 3 MPa. This work was supported by Competitiveness Growth Programme of the Federal Autonomous Educational Institution of Higher Education National Research Nuclear University MEPhI (Moscow Engineering Physics Institute).

Preface

These proceedings are a collection of the selected articles presented at the 17th International School-Conference for young scientists and specialists “New Materials”, meeting “Advanced technology” (NMAT2019), held in Moscow, Russian Federation on 5 – 8 November 2019.This conference is regularly organized by National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), as well as Scientific and Technical Material Scientists Society (MSS), Russian Federation. The organizers of this school-conference were also State Corporation “ROSATOM”, National Research Nuclear Center “Kurchatov Institute”, National University of Science and Technology MISiS, Stock Company “A.A. Bochvar High-technology Research Institute of Inorganic Materials” and Research Institute of the Scientific and Production Association (NII NPO “LUCH”).The School-Conference was sponsored by the Competitiveness Growth Program of MEPhI (“5-100” Russian Academic Excellence Project - http://5top100.ru">http://5top100.ru).One of the main goals of this School-Conference was to train young scientists in matters of interdisciplinary scientific communications. Meetings were held in the form of review lectures of the leading scientists with free discussion and personal oral and poster presentations of the participants.The scope of the conference covered the topics related to the nuclear materials science and promising technologies of the development and processing of new structural and functional materials of future generation of nuclear reactors:(1) Technology of production and processing of materials; (2) 3D-technology;(3) Nanotechnology; (4) Pulse powder technology; (5) Ion-beam and plasma technologies;(6) Methods for characterization of microstructure and properties of materials;(7) Technologies of ultrafast quenching of melts; (8) Technologies for brazing and welding of reactor components.The conference was attended by 178 participants from 10 countries (Russia, USA, Belarus, Kazakhstan, Uzbekistan, Azerbaijan, Slovakia, Latvia, Vietnam, Zambia). During the four days of the conference 24 invited lectures, 57 poster presentations were delivered. However, only some papers were qualified for being published in the Open Access IOP Conference Series: Materials Science and Engineering.Based on the peer-review of reports presented at the school-conference 30 selected papers have been included in this volume. These papers present new research in the various fields of Materials Science and Technology predominantly for Nuclear Engineering. We sincerely hope that the reports presented in this volume will contribute to the advancement of knowledge not only in these fields, but also others.The organizing committee of the conference thanks all the participants for their fruitful work and personal contribution to the development of these conference proceedings.Organizing Committee

Preface

We are pleased to introduce the Proceedings of the II conference Personnel training and legal support for the implementation of research projects of the MegaScience class (June 25, 2020) organized by National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) and the Kutafin Moscow State Law University (MSAL).The purpose of the conference is to discuss issues of personnel training and legal regulations of the implementation of research projects of the “MegaScience” class. The conference participants presented both positive and negative experience in the implementation of scientific projects of the “MegaScience” class, their current status, problems of their legal regulation, as well as problems of international scientific cooperation. The participants also proposed ideas for improving the regulations of the organization of these projects.Due to the current restrictions caused by the coronavirus infection COVID-19, the conference was held online with the help of video communication systems.The received papers were reviewed according to the standards of the Journal of Physics: Conference Series and to the scientific criteria developed by organizers. This volume of journal includes 25 papers devoted to various aspects of cooperation in the field of “MegaScience” class projects. The organizing committee is very grateful to the:• Ministry of Science and Higher Education of the Russian Federation, National Research Center «Kurchatov Institute», ROSATOM, Russian Foundation for Basic Research• Participants of the conference for their valuable contribution with the delivered presentations and interesting papers• Conference program committee co-chairman: Strikhanov M.N., rector of National Research Nuclear University MEPhI, and Blazheev V.V., rector of the Kutafin Moscow State Law University• Personnel of Journal of Physics for the support and communicationThis volume of the Journal of Physics: Conference Series was issued with the financial support provided by the Russian Foundation for Basic Research (grant. 18-29-15036 mk «Models of legal regulations of unique scientific facilities of “MegaScience” class at the national and international levels in the context of technological development of the Russian Federation»).Editors: Anatoly Petrukhin (MEPhI), Daria Moshkova (MSAL), Dmitry Lozovskij (MEPhI).

Preface

We are pleased to introduce the Proceedings of the International research conference «International scientific and practical conference for young specialists, scientists and post-graduates on nuclear reactor physics (ICNRP Volga 2020)» organized by the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) and held on September 7-11, 2020.The conference is held every two years and has more than 40-year history. The main participants are students, graduate students and young scientists, which represent universities, research institutes and scientific organizations. The conference aims to provide an opportunity to exchange experience in the design, operation and modeling of nuclear reactors. The conference is dedicated to the sustainable development of nuclear technologies, topical issues and trends in the field of nuclear reactors physics and the nuclear fuel cycle.Representatives of research organizations and universities from eight countries (Russia, Germany, Norway, Jordan, Egypt, Belarus, Vietnam, and Algeria) presented their reports on various topics. The major topics are features of fast reactors, advanced nuclear reactor design, challenges in closed fuel cycle implementation and computational reactor tests, codes and databases. Over 110 participants from 21 organizations attended the conference. More than 100 reports were presented. Due to COVID-19 based restrictions the conference held online via video communication platform. This format appeared to be very convenient and allowed more participants to attend the conference.The received papers were reviewed according to the standards of the Journal of Physics: Conference Series and organizers scientific criteria.The organizing committee is very grateful to the:● Participants of the conference for their valuable contribution with the delivered presentation, who showed their interest and patient despite nonstandard conference format,● Competitiveness Program of National Research Nuclear University MEPhI for the financial support,● Personnel of Journal of Physics for the support and communication.COMMITTEES:● Asmolov V. G. Adviser to the General Director of Rosatom State Corporation - Chairman● Pershukov V. A. Special Representative of Rosatom State Corporation for International and Scientific and Technical Projects - Co-Chairman● Khomyakov Yu. S. Head of the Department of the Scientific Director of the Private Institution “ITCP” “PRORIV”● Hamshik J. Professor of the Department of Electrical and Information Technology of the Slovak Technical University● Leskin V. I. Professor of the Department of Nuclear Physics and Technologies, MEPhI● Tikhomirov G. V. deputy director of the Institute of Nuclear Physics and Technologies, MEPhI

Peer review declaration

All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.• Type of peer review: Single-blind • Conference submission management system: EMAILS • Number of submissions received: 29 • Number of submissions sent for review: 29 • Number of submissions accepted: 29 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 100% • Average number of reviews per paper: 2 • Total number of reviewers involved: 26 • Any additional info on review process: TSER 2020 submissions review process was carried out according to the usual standards of single-blind peer reviewing and in full compliance with the ethical policy of the IOP Publishing. Contact person for queries: Alla Oudalova, D.Sc.Instutute of Nuclear Physics and Engineering, National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Obninsk, Russian Federation AAUdalova@mephi.ru

Preface

We are pleased to introduce the Proceedings of the conference Personnel training and legal support for the implementation of research projects of the MegaScience class (June 20-21, 2019) organized by National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) and the Kutafin Moscow State Law University (MSAL).The conference was attended by scientists conducting research on unique scientific facilities of the mega-science class. Participants of the conference presented both positive and negative experience in implementing scientific projects of the megascience class, made proposals on optimal organization of these projects. The problems of legal regulation of creation and functioning of unique scientific facilities of the megascience class, as well as the problems of international scientific cooperation were identified.The received papers were reviewed according to the standards of the Journal of Physics: Conference Series and to scientific criteria developed by organizers. This volume of journal includes 21 papers devoted to various aspects of cooperation in the field of megascience class projects.List of Conference Photograph are available in the pdf.

2nd International Telecommunication Conference “Advanced Micro - and Nanoelectronic Systems and Technologies”

Second International Telecommunication Conference on Advanced Micro - and Nanoelectronic Systems and TechnologiesV S Pershenkov, D S Veselov and G I Zebrev*National Research Nuclear University MEPhI (MEPhI), Kashirskoe shosse 31, Moscow, 115409, Russian FederationCorresponding author’s e-mail address: GIZebrev@mephi.ruSecond International Telecommunication Conference on Advanced Micro - and Nanoelectronic Systems and Technologies took place from June 1st to June 2nd 2017 at National Research Nuclear University MEPhI (Moscow Engineering Physics Institute). It was organized by the Micro - and Nanoelectronic Department of National Research Nuclear University MEPhI (the oldest Microelectronic department in Russia (USSR).The Conference consists of one plenary and three oral and poster sessions. The plenary session presented the most significant results of Micro - and Nanoelectronic Department MEPHI and other participants. This Conference provides to participants an opportunity to discuss their scientific and technical results in a wide audience of leading industry experts.The main topics of the Conference were• Semiconductor physics;• Design of micro - and nanosystems;• Manufacturing technology of micro - and nanosystems.More than 150 specialists on Micro - and Nanoelectronics took part in the Conference. They represented leading Russian scientific research centres and universities (such as National Research Center “Kurchatov Institute”, All-Russia Research Institute of Automatics (VNIIA), Bauman Moscow State Technical University, Moscow Aviation Institute (National Research University), Moscow Power Engineering Institute, Moscow State University of Mechanical Engineering (MAMI), D. Mendeleev University of Chemical Technology of Russia and many others) and universities from Armenia, Belarus, Ukraine, Germany, Colombia, Spain, South Korea, Republic of Uzbekistan.We would like to thank all of the speakers, participants and organizing committee members for their contribution to the Conference.

Structure Features and Properties of Graphene/Al 2 O 3 Composite

This work has been supported by the Competitiveness Program National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russian Ministry of Education and Science No. 02. A 03.21.0005; the Russian Science Foundation No16 - 19 - 10213; the Spanish Ministry of Economy and Competitiveness project MAT2015 - 67586-C3-R. E. Klyatskina acknowledges the Valencian Government for her Post-Doc. Contract APOSTD/2014/046 and A. Borrell acknowledges the Spanish Ministry of Economy and Competitiveness for her contract RYC2016 - 20915.

Spark-Plasma Sintering of Al2O3–Graphene Nanocomposite

This work was supported by the Competitiveness Program of National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russian Ministry of Education and Science no. 02. A 03.21.0005 and by the Russian Science Foundation (project no. 16-9-10213 from May 6, 2016).

The communicative preferences of technical university students in social networks

The paper focuses on social networking activities of university students from the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) and Saint Petersburg State University of Civil Aviation. The authors make an attempt to determine the network communicative preferences of students that train for technical professions. The choice of the universities is motivated by the strategic importance of the professions obtained by their graduates. Respondents’ preferences in using various social networks for the instructions were detected by the questionnaire described in the paper. The results show strong preference of VK, Instagram, Facebook, but in practice, reflecting the access rate, only VK could be used for education purposes. It is noted that the network preferences of the students from both technical universities are in line with the general Russian trends. And though online social networks are used by them mostly for the sake of rest and recreation, for communicating with friends, the students show that they are greatly interested in accumulating their social and professional capital by means of online social networks. This fact runs counter to their evaluation of the content offered by the contemporary professionally oriented network communities, with which they are not satisfied.

5th International Scientific Workshop on “Advanced Technologies of Materials Field-Assisted Consolidation”

PrefaceThese proceedings are a collection of the selected articles presented at the 5th International Scientific Workshop «Advanced Technologies of Electromagnetic Field Assisted Consolidation of Materials», held in Moscow, Russian Federation on 29-31 August 2016. This workshop is regularly organized by Key Laboratory for Electromagnetic Field Assisted Materials Processing of National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Russian Federation.The Scientific Workshop was sponsored by the Competitiveness Growth Program of MEPhI (“5–100” Russian Academic Excellence Project - http://5top100.ru).One of the main goals of this Scientific Workshop was to train young scientists in matters of advanced technologies of electromagnetic field assisted consolidation of powder materials. Meetings were held in the form of review lectures of the leading scientists with free discussion and personal oral and poster presentations of the participants.The general scope of the Scientific Workshop covered the advanced technologies of electromagnetic field assisted consolidation of materials.The workshop was attended by 67 participants from 5 countries (Russia, Belarus, Ukraine, Latvia and USA). During the three days of the workshop 14 invited lectures, 35 oral presentations were delivered. However, only some papers were qualified for being published in the Open Access IOP Conference Series: Materials Science and Engineering (MSE).Based on the peer-review of reports presented at the workshop 22 selected papers have been included in this volume. These papers present new research in the various fields of technology of electromagnetic field assisted consolidation of powder materials. We sincerely hope that the reports presented in this volume will contribute to the advancement of knowledge not only in these fields, but also others.The organizing committee of the workshop thanks all the participants for their fruitful work and personal contribution to the development of these conference proceedings.List of Figures, Editors and Committees are also availabe in this pdf

1st International Symposium ‘Physics, Engineering and Technologies for Bio-Medicine’

The 1st International Symposium “Physics, Engineering and Technologies for BioMedicine” was held in Moscow at the occasion of the foundation of the new Institute PhysBio at MEPHI (Russia) on October 20-23, 2016.Under the auspices of the Russian Ministry of Science and Education, the Ministry of Health and the State Company Rosatom, the Symposium is organized by the Institute of Engineering Physics for Biomedicine (PhysBio), which has recently been established at National Research Nuclear University MEPhI (Moscow Engineering Physics Institute).The PhysBio’s goal is to train highly-skilled personnel through the research and development in engineering physics for biomedicine, including nuclear medicine, material science, laser physics and biophotonic technologies.The Symposium was aimed to meet the leading scientists and experts in nuclear medicine, biophysics, biophotonics, and emerging fields to present their works and to have invited lectures.

Development of methodical instruments of obtaining, research and control of electrophysical service properties of nanostructure composites

The article highlights the main problems of development of methodical instruments of obtaining, research and control of electrophysical service properties of nanostructure composites. Some of the results obtained at the research performed by scientists from National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) and National Research University St. Petersburg State Polytechnical University are presented. The results are discussed in the focus of development of a new general method of control of electrophysical service properties of materials and products of nanostructured composites during the manufacturing process.

1st International Telecommunication Conference “Advanced Micro- and Nanoelectronic Systems and Technologies”

First International Telecommunication Conference on Advanced Micro- and Nanoelectronic Systems and Technologies took place from December 22nd to December 23rd 2015 at National Research Nuclear University MEPhI (Moscow Engineering Physics Institute). It was organized by the Micro- and Nanoelectronic Department of National Research Nuclear University MEPhI (the oldest Microelectronic department in Russia (USSR).The Conference consists of one plenary and three oral and poster sessions. The plenary session presented the most significant results of Micro- and Nanoelectronic Department MEPHI and other participants. This Conference provides to participants an opportunity to discuss their scientific and technical results in a wide audience of leading industry experts.The main topics of the Conference were:• Semiconductor physics;• Design of micro- and nanosystems;• Manufacturing technology of micro- and nanosystems.More than 150 specialists on Micro- and Nanoelectronics took part in the Conference. They represented leading Russian scientific research centres and universities (such as National Research Center “Kurchatov Institute”, All-Russia Research Institute of Automatics (VNIIA), Bauman Moscow State Technical University, Moscow Aviation Institute (National Research University), Moscow Power Engineering Institute, Moscow State University of Mechanical Engineering (MAMI), D. Mendeleev University of Chemical Technology of Russia and many others) and universities from Armenia, Belarus, Ukraine, Germany, Colombia, Spain, South Korea, Republic of Uzbekistan.We would like to thank all of the speakers, participants and organizing committee members for their contribution to the Conference.

XIX Conference on Plasma Surface Interactions

The 19th Conference on Plasma Surface Interactions (PSI-2016) was held at National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) on 28-29 January 2016. This is a traditional annual meeting organized by MEPhI for many years and devoted to the recent achievements of Russian scientists and foreign colleagues in experimental and computer simulations of plasma and its components' interactions with plasma faced materials (PFM) for fusion devices and plasma technologies. The conference agenda covered a broad list of topics including:• plasma induced erosion and modification of materials;• radiation damage in materials;• lithium and liquid metals as PFM;• modeling of plasma surface interaction and processes in SOL of tokamak plasma;• diagnostics of plasma-surface interaction.The aim of the conference was to present and discuss new results in PSI in a wide audience with different areas of expertise. The important feature of the conference is to give PhD and undergraduate students the opportunity for approbation of results of their scientific activity and improve their knowledge in the novel directions of R&D in the field of fusion and plasma technologies. In total, more than 80 experienced and young researchers participated in the conference.These Proceedings contain 21 papers selected for publication, which were reviewed by the invited international team of editors (T. Tanabe, S. Petrovich, Ch. Grisolia, Yu. Martynenko, S. Krasheninnikov, L. Begrambekov, A. Pisarev).The Conference as well as editing of this issue were supported by National Research Nuclear University MEPhI in the framework of the Russian Academic Excellence Project (contract No. 02.a03.21.0005, 27.08.2013).Finally, we would like to thank all of the speakers, participants and organizing committee members for their contribution to the conference.AcknowledgementsThe organizers of the conference would like to thank for the support from National ResearchNuclear University MEPhI in the framework of the Russian Academic Excellence Project(contract No. 02.a03.21.0005, 27.08.2013).

10th International School-Conference on Materials for Extreme Environment: Development, Production and Application (MEEDPA10)

These proceedings are a collection of the selected articles presented at the 10th International School- Conference for young scientists and specialists "New Materials", meeting "Materials for Extreme Environment: development, production and application" (MEEDPA10), held in Moscow, Russian Federation on 19-23 October 2015. This conference is regularly organized by the Center of Nuclear Systems and Materials (NSM) of National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), as well as the Scientific and Technical Material Scientists Society (MSS), Russian Federation.The School-Conference was sponsored by the Competitiveness Growth Program of MEPhI ("5-100" Russian Academic Excellence Project - http://5top100.ru).One of the main goals of this School-Conference was to train young scientists in matters of interdisciplinary scientific communications. Meetings were held in the form of review lectures of the leading scientists with free discussion and personal oral and poster presentations of the participants.The general scope of the School-Conference covered the materials and nuclear fuel for PWR/BWR and fast breeder reactors.The conference was attended by 143 participants from 8 countries (Russia, Belarus, Ukraine, Kazakhstan, France, UK and USA). During the four days of the conference 14 invited lectures, 25 oral and 47 poster presentations were delivered. However, only some papers were qualified for being published in the Open Access IOP Conference Series: Materials Science and Engineering (MSE) journal.Based on the peer-review process, of the reports presented at the school-conference, 66 selected papers were included in this volume. These papers present new research in the various fields of Materials Science and Technology for Nuclear Engineering. We sincerely hope that the reports presented in this volume will contribute to the advancement of knowledge not only in these fields, but also others.All papers in the issue are grouped into four sections, as well as in the conference program: (1) Structural materials: steels, Zr- and V- alloys, refractory alloys; (2) Functional materials and nuclear fuel; (3) Technology: brazing, welding, sintering, ion and plasma treatment; (4) Methods of research and modeling of materials.The organizing committee of the conference thanks all the participants for their fruitful work and personal contribution to the development of these conference proceedings.

Determination of traces of uranium and thorium in titanium and copper used for the construction of the Russian Emission Detector 100 by inductively coupled plasma mass spectrometry.

The Russian Emission Detector 100 (RED-100) under construction at the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) is designed to detect the presently undiscovered effect of coherent neutrino scattering. One of the factors limiting the sensitivity of the detector is the spontaneous decay of uranium and thorium in the detector materials. Radioactive impurities in detector materials at levels of parts per billion can significantly affect the sensitivity. Five random samples of titanium and one of copper from materials used in the construction of the detector were selected for assay. The concentration of (232)Th and (238)U were measured by inductively coupled plasma mass spectrometry (ICP- MS) in solid titanium using both: solutions in acids and direct sampling by laser ablation (LA-ICP-MS). The LA- ICP-MS method allowed us to determine (238)U and (232)Th at subnanogram per gram levels. This method is much faster than ICP-MS with liquid injection. The titanium samples studied have impurities in the range between 1 ng g(-1) and 21 ng g(-1) for (238)U and 3 ng g(-1) and 31 ng g(-1) for (232)Th. In copper we set upper limits of 0.4 ng g(-1) for (238)U and 1 ng g(-1)for (232)Th. The total activity of the cryostat constructed from materials studied was estimated to be 43 Bq.