2020

A joint workshop of the Laboratory of Radiation Biology and the Laboratory of Information Technologies was held on 18 June 2020. It was dedicated to a joint project “Information system (IS) for analyzing behavioural and pathomorphological changes in the central nervous system in the study of the effects of ionizing radiation and other factors on biological objects”. More than 70 specialists from LIT and LRB, as well as from research institutions of Germany, Switzerland and other countries, participated in the workshop, which was held in the online format. The materials of the workshop are available at the Seminar in Indico

Dear Colleagues! In the scientific journal "Physics of Particles and Nuclei Letters" (2020, Vol. 17, No.3,) you can find articles of LIT employees:

1. M. Baznat, A. Botvina,G. Musulmanbekov, V. Toneev, V. Zhezher Monte-Carlo generator of heavy ion collisions DCM-SMM. Abstracts. Particles and Nuclei, Letters. Vol. 17, No. 3(228). P. 265
2. Kashunin I. А., Mitsyn V. V., Trofimov V. V., Dolbilov A. G. Integration of the Cluster Monitoring System Based on Icinga2 at JINR LIT MICC. Particles and Nuclei, Letters. Vol. 17, No. 3(228). P. 345–352

Due to the adverse epidemiological situation, the 32nd Summer International Computer School will be held in a new online format.

The ICS-2020 will be held for school students, from 19 July to 2 August, and for teachers and students who want to master the project approach in teaching research activities – from 12 to 17 July 2020.

The procedure for registering participants is as follows:

1. Participants should pre-register on the site mksh.ru by filling application form from 15 May to 5 June (separately for school students and mentors).
2. After the announcement of the School programme, participants should sign up for the particular activities until 12 June (sigh up forms will be opened on 7 June).

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The continuity of operation of the networking and IT infrastructure of JINR and all the elements of the Multifunctional Information and Computing Complex (MICC) is considered by the Laboratory of Information Technologies JINR as the most important task. Grid clasters, cloud infrastructure and high-performance platform HybriLIT, which includes the supercomputer “Govorun”, have been always configured for 24/7 operation. MICC provides resources for various tasks solved in the frames of numerous projects JINR takes an active part in. More...

On 13 April, a scientific paper by an international scientific group was published in Nature Physics. A LIT staff member O. Chuluunbaatar and a BLTP employee Yu. V. Popov were members of the group in the frames of JINR international cooperation. The group conducted a kinematically complete experimental measurement of characteristics of Compton scattering at free atoms using the highly efficient method of COLD Target Recoil Ion Momentum Spectroscopy (COLTRIMS). The group also provided a relevant theoretical description of it.

Experimentalists from the Goethe University (Frankfurt am Main, Germany) targeted a strong photon beam of the Petra III synchrotron (DESY, Hamburg) through the helium supersonic flow.

The COLTRIMS method allowed measuring not only the scattered electron momentum but also the momentum of helium recoil-ion for separate scattering processes. Taking into account the law of pulse energy conservation, it gave an opportunity to fully restore the kinematic properties of the scattering process. Moreover, the use of the method solved the problem of a very low cross-section of the Compton ionization in the photon energy diapason of several KeV that is about 6 times lower than the typical cross-section of the photoabsorption. All this opens opportunities for the use of Compton scattering as yet another instrument of atomic spectroscopy along with such powerful methods of study of atoms and molecules as (e, 2e), (ion, ion e) and others. Theoretical description of this phenomenon is based on the calculations carried out at the supercomputer “Govorun”.

We are glad to bring to your attention a new preprint «A Three-Point Grid Based Polynomial Prediction» P5-2020-1 published by the JINR Publishing Department. The author of the paper is N. D. Dikusar. Abstract: Within the framework of the recently proposed basic element method (BEM), a new approach is made to the solution of the problem of polynomial prediction and extrapolation of the sixth order for smooth functions. The one step forward forecast is performed using two fifth degree polynomials. The formulae for the coefficients of BEM-polynomials depend on the grid step, the values of the function and its first derivative at the nodes of two three-point grids. The method was tested on the numerical solution of the Cauchy problem for ODE. The efficiency of numerical integration is ensured by a threefold calculation of the right side of the equation and the O(h5) accuracy of the solution. The BEM-prediction can serve as the core for the development and creation of effective algorithms for numerically solving Cauchy problems for ODEs, including stiff ones.

WARNING! International IT-School “Distributed Computing and Big Data Analytics”, which to be held on 20 - 25 April 2020 in Budva (Montenegro), is canceled!

We invite you to take part in the 6th All-Russian Scientific and Technical Conference "Supercomputer Technologies" (SCT-2020) held on October 5-10, 2020 in Alushta, Crimea, on the basis of the Dubna Pension.
27.03.2020 - the deadline for submitting an application for participation and the preliminary title of the report.
First circular    Covering letter

Dear Colleagues! In the "North Ossetia" (Republican daily newspaper, Section Hi-Tech, 02/14/2020), you can find an article "What's in the black box?", author Madina MAKOEVA.
No need to plow spaces of the Universe with spaceships. No need to create masterpieces of science fiction, which today look less impressive than the surrounding reality. This world needs a new hero. Which will find dark matter, thereby making a breakthrough in 21st century science. Are you ready to become one?   More...

Applications admission for Summer Student Program 2020 at Joint Institute for Nuclear Research ends 2020-04-01. JINR Laboratory of Information Technology ensures creation and further development of the JINR information and computer infrastructure, methods, algorithms and software for the modeling of physics systems, mathematical processing and analysis of experimental data. The following areas are being developed: monitoring of distributed information and computer systems; data storage systems and technologies; parallel programming technologies MPI, OpenMP, CUDA, MPI+CUDA; hybrid architectures; Big Data; cloud technologies; development of information systems; development and analysis of mathematical models of quantum computing and quantum information; information methods of data and social networks analysis; computational methods in physics; mathematical methods for simulation of complex physics systems; development of algorithms of parallel computing; mathematical methods and software for processing of experimental data.
Information and Computing Infrastructure of JINR,
Methods, Algorithms and Software for Modeling Physical Systems, Mathematical Processing and Analysis of Experimental Data

The 6th All-Russian Scientific and Technical Conference "Supercomputer Technologies" SCT-2020 will be held in Crimea from October 5 to 10 at the Dubna Pension, located in one of the most picturesque places in the resort of Alushta, in the Professor’s Corner.
The main purpose of the Conference is to unite the efforts of Russian scientists in the development of fundamental research and applied developments in the field of supercomputer technologies. More...

WARNING! Organization Committee has decided to POSTPONE the conference!

The XXIV International Scientific Conference of Young Scientists and Specialists (AYSS-2020) will be held on 13 - 17 April 2020 at the Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research (JINR, Dubna, Russia). The Conference is held annually and attended by students, young scientists and specialists from scientific centers over the world. The selected talks will be recommended to be published in the refereed journal. Participation in the Conference will be confirmed by a certificate. The working language of the Conference is English. Registration and abstract submission deadline is set on 23 February 2020.

Dear Colleagues! In the "JINR NEWS" bulletin (2019, No.4, P. 28-32) you can find an article: E. E. Perepelkin, A. D. Kovalenko, A. A. Tarelkin, R. V. Polyakova, N. G. Inozemtseva, M. B. Sadovnikova "Integrated Approach in Modeling and Optimization of Accelerator Elements".