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and Properties of the Neutron
| Leader: | E.V. Lychagin |
| Deputies: | Yu.N. Kopatch P.V. Sedyshev |
Participating countries and international organizations:
Albania, Australia, Austria, Azerbaijan, Belarus, Belgium, Bulgaria, CERN, China, Croatia, Czech Republic, Egypt, Finland, France, Germany, Hungary, India, Japan, Kazakhstan, Macedonia, Moldova, Mongolia, Norway, Poland, Republic of Korea, Romania, Russia, Serbia, Slovakia, Slovenia, South Africa, Switzerland, Thailand, Turkey, Ukraine, USA, Uzbekistan, Vietnam.
Issues addressed and main goals of research:
Experimental and theoretical investigation of symmetry breaking effects in reactions with neutrons and fundamental properties of the neutron to test the parameters of the Standard Model and search for "new physics". Investigation of the properties of excited nuclei, reactions with emission of charged particles, fission physics. Obtaining of relevant data for astrophysics, nuclear power engineering and nuclear waste transmutation problem using neutron- and gamma-induced reactions. Application of neutron physics methods in other fields of science and technology. Development and construction of detectors of neutrons and other ionizing radiation, as well as applied methods in nuclear physics with neutrons. Development of the Intense REsonance Neutron Source (IREN) and the experimental base at the IREN and IBR-2 facilities.
Expected results in the current year:
in neutron-nucleus interactions and related data
- Development and testing of a new experimental method for measuring the ROT effect in fission on polarized neutron beams.
- Measurement of rare fission modes with Timepix detectors.
- Precision measurement of yields and angular correlations of
-rays and neutrons in the interaction of 14 MeV neutrons with nuclei. - Investigation of the variations of multiplicities of fission neutrons and TKE in the reaction 235U(nres,f) at the IREN facility. Investigation of the (n, f) process in the reaction 239Pu(nres,f).
- Investigation of fast neutron induced reactions (n,p), (n,
) for light nuclei (Cl, N) using an ionization chamber and position-sensitive detectors Timepix3.
- Creating samples of nanodiamond powders with reduced content of metallic impurities and reduced content of elements with large neutron capture cross section to create low-energy nanoparticle reflectors.
- Measurements of small-angle neutron scattering with the obtained samples to determine their characteristics (size of crystals, agglomerates, etc.).
- Measurements of the quasi-mirror reflection of VCN from a sample with crystallites of ~ 20 nm in size.
- Conducting detailed quantum calculations and preparing a draft experimental setup for a non-stationary quantum experiment on the interaction of neutrons with a neutron interference filter oscillating in space.
- Conducting an experiment on the inelastic heating of UCNs on surface acoustic waves and checking the validity of the model of the effective potential in the case of a substance moving with extreme acceleration of the order of 10 7 g.
- Development of the data acquisition system for measurements of the time-of-flight spectra by the current method.
- Modernization of the neutron guide of the 1st channel of the IBR-2 reactor.
- Investigation of the depth profiles of all elements contained in the surface layers of solid-state samples.
- Elemental and isotopic analysis of archaeological samples at the IREN facility using the method of neutron resonance spectrometry and the method of neutron activation analysis.
- Modernization of the REGATA facility at the IBR-2 reactor.
- Elemental analysis of plant, biological, geological samples, as well as new materials, including nanomaterials, by means of the neutron activation analysis method at the IBR-2 reactor using the REGATA facility.
- The use of low-background gamma spectrometry to analyze the content of radionuclides in environmental objects.
- Development of an automated post for carrying out neutron activation analysis at the Institute of Nuclear Physics (Alma-Ata, Kazakhstan).
- Development of a prototype facility for elemental analysis using TNM and high-resolution gamma-ray detectors.
- Providing the neutron beam time from IREN for physical experiments.
| List of projects: | |||
| Project | Leader | Priority (period of realisation) |
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| 1. | TANGRA | Yu.N. Kopatch | 1 (2014-2022) |
| List of Activities | |||||
| Activity or Experiment | Leaders | ||||
| Laboratory or other Division of JINR Responsible person |
Main researchers | ||||
| 1. | Investigations of violations of fundamental symmetries in neutron-nucleus interactions and related data |
Yu.N. Kopatch |
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| FLNP | G.S. Ahmedov, D. Berikov, S.B. Borzakov, B. Buadze, I.I. Chuprakov, G.V. Daniljan, S. Enkhbold, Fan Lyong Tuan, Yu.M. Gledenov, D.N. Grozdanov, N.A. Gundorin, A.P. Kobzev, M. Kulik, V.L. Kuznetsov, Zh.V. Mezentseva, S.V. Mironov, V.V. Novitsky, I.A. Oprea, K.D. Oprea, Yu.N. Pokotilovskij, A.B. Popov, P.V. Sedyshev, M.V. Sedysheva, O.V. Sidorova, N.V. Simbirtseva, V.R. Skoj, A.M. Suhovoj, S.A. Telezhnikov, T.Yu. Tretyakova, M. Tsulaja, Vu Dyk Kong, Sh.S. Zeynalov, 24 engineers, 4 workers | ||||
| 2. | Investigation of the fundamental properties of the neutron, UCN physics |
E.V. Lychagin |
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| FLNP | G.G. Bunatyan, T.L. Enik, A.I. Frank, W.I. Furman, S.V. Gorunov, V.K. Ignatovich, G.V. Kulin, L.V. Mitsyna, A.Yu. Muzychka, A. Nesipbai, A.Yu. Nezvanov, Yu.N. Pokotilovskij, N.Yu. Rebrova, A.V. Strelkov, E.I. Sharapov, M.A. Zakharov, K.N. Zhernenkov, 2 engineers, 1 worker | ||||
| 3. | Applied research | P.V. Sedyshev |
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| FLNP | M.V. Frontasyeva, A.P. Kobzev, Yu.N. Kopatch, W.I. Furman, V.N. Shvetsov, Yu.V. Alekseenok, K.N. Vergel, V.M.B. Ged, D.C. Grozdov, I.I. Zinikovskaja, G.Y. Khristozova, G.S. Ahmedov, N.V. Simbirtseva, S.B. Borzakov, D.N. Grozdanov, N.A. Gundorin, M. Kulik, Zh.V. Mezentseva, I.A. Oprea, K.D. Oprea, V.R. Skoj, A.Yu. Dmitriev, 22 engineers, 4 workers | ||||
| 4. | Development of the IREN facility | V.N. Shvetsov |
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| FLNP | V.G. Pjataev, E.A. Golubkov, 17 engineers, 1 worker | ||||
| VBLHEPA.P. Sumbaev | V.F. Minashkin, V.N. Zamrij, 3 engineers | ||||
| DLNP | I.N. Meshkov | ||||
| 5. | Development of experimental infrastructure of the IREN facility |
V.N. Shvetsov |
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| FLNP | A.A. Beliakov, E.V. Lychagin, V.G. Pyataev, P.V. Sedyshev, V.A. Trepalin, 15 engineers | ||||
| 6. | Modernization of EG-5 accelerator | A.S. Doroshkevich |
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| FLNP | A.N. Likhachev, A.P. Kobzev, 4 engineers | ||||
| 7. | Project TANGRA | Yu.N. Kopatch |
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| FLNP | F.Aliev, N.A. Gundorin, D.N. Grozdanov, C. Hramco, I.A. Oprea, K.D. Oprea, P.V. Sedyshev, V.R. Skoi, V.N. Shvetsov, T.Yu. Tretyakova | ||||
| VBLHEP | U.Yu. Aleksakhin, S.V. Khabarov, Yu.N. Rogov, R.A. Salmin, M.G. Sapozhnikov, V.M. Slepnev, N.I. Zamjatin, E.V. Zubarev | ||||
| DLNP | A.V. Krasnoperov, A.B. Sadovskii, A.V. Salamatin | ||||
| LRB | G.N. Timoshenko | ||||
| Collaboration | |||
| Country or International Organization |
City | Institute or Laboratory | |
| Albania | Tirana | UT | |
| Australia | Melbourne | Univ. | |
| Austria | Vienna | IAEA | |
| Innsbruck | Univ. | ||
| Azerbaijan | Baku | BSU | |
| IGG ANAS | |||
| IRP ANAS | |||
| Belarus | Minsk | INP BSU | |
| ISEI BSU | |||
| SPMRC NASB | |||
| Bulgaria | Sofia | INRNE BAS | |
| Plovdiv | PU | ||
| UFT | |||
| CERN | Geneva | CERN | |
| China | Beijing | IHEP CAS | |
| Xi'an | NINT | ||
| Croatia | Zagreb | Oikon IAE | |
| RBI | |||
| Czech Republic | Prague | CEI | |
| CTU | |||
| Ostrava | UO | ||
| VSB-TUO | |||
| Egypt | Cairo | EAEA | |
| Alexandria | Univ. | ||
| Shibin El Kom | MU | ||
| Finland | Jyvaskyla | UJ | |
| Oulu | UO | ||
| France | Cadarache | CC CEA | |
| Grenoble | ILL | ||
| LPSC | |||
| Saclay | LLB | ||
| Strasbourg | IPHC | ||
| Georgia | Tbilisi | AIP TSU | |
| TSU | |||
| Germany | Darmstadt | GSI | |
| Dresden | HZDR | ||
| Mainz | JGU | ||
| Munich | TUM | ||
| Tubingen | Univ. | ||
| Hungary | Budapest | RKK OU | |
| India | Varanasi | BHU | |
| Italy | Rome | ENEA | |
| Japan | Kyoto | KSU | |
| Tsukuba | KEK | ||
| Kazakhstan | Nur-Sultan | ENU | |
| Almaty | INP | ||
| Ust-Kamenogorsk | TRCE | ||
| Moldova | Chisinau | IC ASM | |
| IMB ASM | |||
| Mongolia | Ulaanbaatar | CGL | |
| NRC NUM | |||
| Norway | Trondheim | NTNU | |
| Poland | Krakow | NINP PAS | |
| Gdansk | GUT | ||
| Lodz | UL | ||
| Lublin | UMCS | ||
| Opole | UO | ||
| Otwock (Swierk) | NCBJ | ||
| Poznan | AMU | ||
| Wroclaw | UW | ||
| Republic of Korea | Seoul | Dawonsys | |
| Daejeon | KAERI | ||
| Pohang | PAL | ||
| Romania | Bucharest | IFIN-HH | |
| UB | |||
| Baia Mare | TUCN-NUCBM | ||
| Cluj-Napoca | INCDTIM | ||
| Constanta | NIMRD | ||
| UOC | |||
| Galati | UG | ||
| Iasi | UAIC | ||
| Magurele | ISS | ||
| Oradea | UO | ||
| Pitesti | ICN | ||
| Ramnicu Valcea | I.C.S.I. | ||
| Targoviste | UVT | ||
| Russia | Moscow | GIN RAS | |
| GPI RAS | |||
| IKI RAS | |||
| IPCE RAS | |||
| ITEP | |||
| MSU | |||
| NRC KI | |||
| SINP MSU | |||
| VNIIA | |||
| Moscow, Troitsk | INR RAS | ||
| Borok | IBIW RAS | ||
| Dubna | Diamant | ||
| Dubna State Univ. | |||
| Gatchina | NRC KI PNPI | ||
| Grozny | CSPU | ||
| Irkutsk | LI SB RAS | ||
| Ivanovo | ISUCT | ||
| Izhevsk | UdSU | ||
| Nizhny Novgorod | IPM RAS | ||
| Obninsk | IPPE | ||
| Tomsk | NPI TPU | ||
| St. Petersburg | Botanic Garden BIN RAS | ||
| FIP | |||
| Hermitage | |||
| Ioffe Institute | |||
| KRI | |||
| SPSFTU | |||
| Sevastopol | IBSS | ||
| Tula | TSU | ||
| Vladikavkaz | NOSU | ||
| Voronezh | VSU | ||
| Yekaterinburg | UrFU | ||
| Serbia | Belgrade | IPB | |
| Univ. | |||
| Novi Sad | UNS | ||
| North Macedonia | Skopje | UKiM | |
| Slovakia | Bratislava | CU | |
| IEE SAS | |||
| ILE SAS | |||
| IP SAS | |||
| Slovenia | Ljubljana | GeoSS | |
| South Africa | Pretoria | UNISA | |
| Bellville | UWC | ||
| Stellenbosch | SU | ||
| Switzerland | Villigen | PSI | |
| Thailand | Hat Yai | PSU | |
| Turkey | Canakkale | COMU | |
| Ukraine | Kiev | KINR NASU | |
| NUK | |||
| Kharkov | ISMA NASU | ||
| NSC KIPT | |||
| Donetsk | DonIPE | ||
| Uzhgorod | IEP NASU | ||
| USA | Durham, NC | Duke | |
| Los Alamos, NM | LANL | ||
| Oak Ridge, TN | ORNL | ||
| Uzbekistan | Tashkent | INP AS RUz | |
| Vietnam | Hanoi | IOP VAST | |
| VNU |
