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03-4-1128-2017/2019
Priority:1
Status: Being concluded

Investigations of Neutron Nuclear Interactions
and Properties of the Neutron


Leader:     V.N. Shvetsov
Deputies:     Yu.N. Kopatch
E.V. Lychagin
P.V. Sedyshev

Participating countries and international organizations:
Albania, Australia, Austria, Azerbaijan, Belarus, Belgium, Bulgaria, CERN, China, Croatia, Czech Republic, Egypt, Finland, France, Germany, Greece, 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 major results in the current year:
    Investigations of violations of fundamental symmetries
    in neutron-nucleus interactions and related data

  • Preparation and conducting an experiment on measurement of the T-odd effects in the fission of 233U on a beam of IBR-2 reactor.

  • Conducting an experiment on measurement of the neutron paramagnetic resonance of the first kind in samples of titanium hydride TiH2 in the polarized neutron energy range of 0.062-2.3 eV using the KOLKHIDA facility at the IBR-2 reactor.

  • Measurement of the quaternary and search for the quinary fission using a spontaneous fission source 252Cf.

  • Measurement of angular and energy neutron-gamma and neutron-neutron correlations in the inelastic neutron scattering and in (n,2n) reaction in the framework of the TANGRA project.

  • Conducting the measurements of the 35Cl(n,p) 35S on resonance neutrons from the IREN facility.

  • Measurements of (n,α ) reaction with Ni-60,61 isotopes for neutron energies En =4.5-6.5 MeV at the accelerator EG-4.5 of the Institute of Heavy Ion Physics of Peking University.
Investigation of fundamental properties of the neutron, UCN physics:
  • Preparation of a project on measurement of the neutron lifetime on a beam of the IBR-2 reactor. Performing methodical measurements.

  • Search for a constraint at a level of 10 - 16 for the product of the coupling constants of the scalar and pseudoscalar axion-like interaction at distances of ~ 10 µm at the GRANIT spectrometer.

  • Investigation of "small UCN heating" phenomena in the interaction of UCN with nanoparticles of different sizes to test predictions of the theoretical model.

  • Manufacturing and testing of a setup to measure the UCN loss factor as a function of UCN energy at the energy range close to limit energy values.

  • Preparation of the project of a new experimental setup for observation of neutron quantum tunneling.

  • Conducting of measurements on neutron diffraction by surface ultrasonic waves.

    Applied and methodological research:
  • Manufacturing and testing of a 2D position-sensitive detector.

  • Development of a 32-channel neutron multiplicity detector system based on scintillation detectors.

  • Manufacturing of two sections of the neutron multiplicity detector based on SNM-14D counters.

  • Measurements of thin layers using methods of Elastic Recoil Detection Analysis, Rutherford Backscattering Spectrometry and X-ray analysis for various materials at the EG-5 accelerator.

  • Elemental and isotopic analysis of archaeological samples at the IREN facility using neutron activation method.

  • Development of a 16-channel scintillation detector for neutron resonance capture analysis at the IREN facility.

  • Development of the elemental analysis technique using the tagged neutron method and standard neutron sources with the help of HPGe detectors and NaI(Tl) and BGO scintillators.

  • Carrying out of neutron activation analysis of environmental, geological, biological samples and novel materials at the IBR-2 reactor using the REGATA facility.

  • Equipping with computers and modern software for the neutron activation analysis facility at INP (Almaty, Kazakhstan). Training of INP personnel on the basics of neutron activation analysis.
    Development of the IREN facility

  • Replacement of the 2129 Thomson klystron of the second accelerating section for the E3730A klystron Toshiba.

  • Providing the neutron beam time from IREN for physical experiments,

List of projects:
  Project Leader Priority
(period of realisation)
1. TANGRA Yu.N. Kopatch
Deputy:
V.M. Bystritsky (DLNP)
1   (2014-2019)
List of Activities
  Activity or Experiment Leaders
Status
  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
Upgrade
Data taking
Data analysis
  FLNP G.S. Ahmedov, N.V. Bazjazjina, D. Berikov, S.B. Borzakov, B. Buadze, Chan Van Fuk, I.I. Chuprakov, G.V. Daniljan, E. Demir, 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, Nguen Ngok An, Nguyen Thi Bao Mi, V.V. Novitsky, I.A. Oprea, K.D. Oprea, Yu.N. Pokotilovskij, A.B. Popov, S.F. Samadov, P.V. Sedyshev, M.V. Sedysheva, O.V. Sidorova, V.R. Skoj, A.M. Suhovoj, S.A. Telezhnikov, T.Yu. Tretyakova, M. Tsulaja, Vu Dyk Kong, Sh.S. Zeynalov + 20 engineers, + 3 workers
2. Investigation of the fundamental
properties of the neutron, UCN
physics
E.V. Lychagin
Upgrade
Data taking
Data analysis
  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, Yu.N. Pokotilovskij, N.Yu. Rebrova, A.V. Strelkov, E.I. Sharapov, K.N. Zhernenkov + 3 engineer + 2 workers
3. Applied research P.V. Sedyshev
Upgrade
Data taking
Data analysis
  FLNP G.S. Ahmedov, Yu.V. Alekseenok, N.V. Bazjazjina, S.B. Borzakov, D. Berikov, G.G. Bunatyan, B. Buadze, Chan Van Fuk, I. Chuprakov, O.A. Culikov, O. Chiligava, G.V. Daniljan, O.G. Duliu, T.L. Enik, S. Enkhbold, M.V. Frontasyeva, A.I. Frank, W.I.Furman, L. Gaidoshikova, V.M.B. Ged, Yu.M. Gledenov, N.A. Gundorin, S.V. Goryunov, D.N. Grozdanov, V.K. Ignatovich, G.Y. Khristozova, A.P. Kobzev, M. Kulik, G.V. Kulin, A. Madadzade, D. Mahajdik, Zh.V. Mezentseva, L.V. Mitsyna, A.Yu. Muzychka, P.S. Nekhoroshkov, A. Nesipbai, Nguyen Thi Bao Mi, V.V. Novitsky, I.A. Oprea, K.D. Oprea, S.S. Pavlov, Yu.N. Pokotilovskij, A.B. Popov, I.N. Ruskov, S.F. Samadov, M.V. Sedysheva, O.V. Sidorova, A.V. Strelkov, E.I. Sharapov, V.R. Skoj, A.M. Suhovoj, V.N. Shvetsov, S.A. Telezhnikov, M. Tsulaja, A.S. Vasilev, K.N. Vergel, E. Vieru, Vu Dyk Kong, P. Yanchik, I.I. Zinikovskaja, Sh.S. Zeynalov, K.N. Zhernenkov + 31 engineers, + 9 workers
4. Development of the IREN facility V.N. Shvetsov
Upgrade
  FLNP V.G. Pjataev, V.V. Kobets, V.G. Shabratov + 16 engineers + 1 worker
  VBLHEP
A.P. Sumbaev
V.F. Minashkin, V.N. Zamrij + 5 engineers
  DLNP I.N. Meshkov
5. Project TANGRA Yu.N. Kopatch
Upgrade
Data taking
Data analysis
  FLNP S.B. Borzakov, P.A. Dubasov, N.A. Gundorin, D.N. Grozdanov, I.A. Oprea, K.D. Oprea, P.V. Sedyshev, V.R. Skoi, V.N. Shvetsov, T.Yu. Tretyakova, A.O. Zontikov
  VBLHEP U.Yu. Aleksakhin, S.V. Khabarov V.L. Rapackii, Yu.N. Rogov, R.A. Salmin, M.G. Sapozhnikov, V.M. Slepnev, N.I. Zamjatin, E.V. Zubarev
  DLNP V.M. Bystritskii, A.V. Krasnoperov, A.B. Sadovskii, A.V. Salamatin
  LRB A.R. Krylov, G.N. Timoshenko

Collaboration
Country or International
Organization
City Institute or Laboratory
Albania Tirana UT
Armenia Yerevan CENS NAS RA
Australia Melbourne Univ.
Austria Vienna IAEA
Innsbruck Univ.
Azerbaijan Baku BSU
IGG ANAS
Ganja ASAU
ATU
Belarus Minsk INP BSU
SPMRC NASB
Belgium Geel IRMM
Bulgaria Sofia INRNE BAS
Plovdiv PU
UFT
CERN Geneva CERN
China Beijing IHEP CAS
Croatia Zagreb Oikon IAE
RBI
Czech Republic Prague CEI
CTU
IEAP CTU
Ostrava VSB-TUO
Egypt Cairo EAEA
Alexandria Univ.
Shibin al Kawm MU
Finland Jyvaskyla UJ
Oulu UO
France Cadarache CC CEA
Grenoble ILL
LPSC
Saclay LLB
Strasbourg IPHC
Georgia Tbilisi AIP TSU
TSU
Germany Darmstadt TU Darmstadt
Dresden HZDR
Mainz JGU
Munich TUM
Tubingen Univ.
Greece Thessaloniki AUTH
Hungary Budapest RKK OU
India Varanasi BHU
Japan Kyoto KSU
Tsukuba KEK
Kazakhstan Almaty INP
Nur-Sultan ENU
Ust-Kamenogorsk TRCE
Macedonia Skopje UKiM
Moldova Chisinau IMB ASM
IC 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
NFRI
Pohang PAL
Romania Bucharest IFIN-HH
INCDIE ICPE-CA
ISS
UB
Baia Mare TUCN-NUCBM
Constanta NIMRD
UOC
Galati UG
Iasi UAIC
Oradea UO
Pitesti ICN
Targoviste UVT
Russia Moscow Atomenergomach
GIN RAS
GPI RAS
IKI RAS
IPCE RAS
ITEP
LMPR MONIKI
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
Ryazan RSU
Snezhinsk VNIITF
St. Petersburg Botanic Garden BIN RAS
FIP
Ioffe Institute
Hermitage
KRI
SPSFTU
Sevastopol IBSS
Tula TSU
Vladikavkaz GPI
NOSU
Voronezh VSU
Yekaterinburg UrFU
Serbia Belgrade IPB
Univ.
Novi Sad UNS
Slovakia Bratislava CU
IP SAS
IEE SAS
ILE SAS
Slovenia Ljubljana GeoSS
South Africa Pretoria UNISA
Stellenbosch SU
Switzerland Villigen PSI
Thailand Hat Yai PSU
Turkey Canakkale COMU
Ukraine Kiev KINR NASU
NUK
Kharkov ISMA NASU
NSC KIPT
Donetsk DonIPE
Sumy IAP NASU
Uzhgorod IEP NASU
USA Athens, AL ASU
Durham, NC Duke
Gettysburg, PA GC
Kingston, RI URI
Los Alamos, NM LANL
Oak Ridge, TN ORNL
Tuscaloosa, AA UA
Uzbekistan Tashkent INP AS RUz
Vietnam Hanoi IOP VAST
VNU

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