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Nuclear Physics PAC 20-th session April 1 - 2 2004 Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme 06-4-1036-2001/2004.

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Presentation on theme: "Nuclear Physics PAC 20-th session April 1 - 2 2004 Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme 06-4-1036-2001/2004."— Presentation transcript:

1 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 FINAL REPORT ON THE TOPIC /2004 “Nuclear Physics with Neutrons – Fundamental and Applied Investigations” Topic leaders: W.I. Furman V.N. Shvetsov V.N. Shvetsov

2 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Main Directions  Experimental and methodical developments planned for high resolution neutron sources (IREN, nTOF, ORELA, KENS)  Research focused on high flux neutron sources (IBR-2, HFR/ILL, JAGUAR, PSI, PIK)  Applied Research  Analytical Investigations at the IBR-2 Reactor, Project REGATA Total number of published works around of them are at reviewed magazines

3 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Scientific Highlights of 2001 – 2004 KaTRIn project Development of Neutron Polarizer-Analyzer System for T-Invariance Experiment V.R. Skoy A1, Y. Masuda A2, S. Muto A3, T. Ino A3, G.N. Kim A4 A1 Frank Laboratory of Neutron Physics, JINR A2 IPNS, Tsukuba, Ibaraki, , Japan A3 IMSS Tsukuba, Ibaraki, , Japan A4 IHEP, Kyungpook National University, Korea

4 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 KaTRIn project

5 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 KaTRIn project Neutron polarization with quartz cellNeutron polarization with sapphire cell P HE = 54% P HE = 63%

6 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 KaTRIn project Nuclear target polarization. First key methodical result have been obtained recently in collaboration with KENS group: Xe gaseous target at low pressure was polarized successfully at several percent level. Next step should be increasing Xe pressure and degree of polarization at acceptable level of relaxation time This work is planned for nearest 1,5 years

7 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Parity Violation Effect – Neutron Spin Rotation and Its Reason For 204 Pb in experiment with polarized thermal neutrons  = (8  2)  rad/sm SnSn PnPn 

8 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Parity Violation Effect – Neutron Spin Rotation and Its Reason

9 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 COmbined COrrelative Spectrometer Parity Violation Effect – Neutron Spin Rotation and Its Reason

10 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Parity Violation Effect – Neutron Spin Rotation and Its Reason 1 – Isotope under investigation (with p-resonance) 2 – Reference isotope (without p-resonance)

11 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Interference effects in the resonance - neutron induced fission of 239 Pu

12 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Activity at n_TOF CERN

13 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Activity at n_TOF CERN JINR – IPE – CERN Collaboration Results of 2003: fine structure of the vibrational fission resonances. Fund. Nucl. Phys.

14 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Activity at n_TOF CERN JINR – IPE – CERN Collaboration Results of 2003: fission x-session of 232 Th, U, 237 Np, Am and 245 Cm for the Thorium cycle and MA incineration in ADS systems. Appl. Nucl. Phys. All experiments at n_TOF are conducted with total financial support of CERN

15 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Scientific Highlights of 2001 – 2004 UCN physics and neutron optics UCN weak upscattering UCN weak upscattering Neutron interaction time Neutron interaction time Time focusing Time focusing Direct n-n scattering length measurements

16 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 HEND has 4 signals of neutrons from sensors SD, MD, LD and SC/IN, and for each of them the map of orbital measurements is currently produced. The map of MD sensor is contributed by epithermal neutrons mainly left (top). This MD map is consistent with the map for epithermal neutrons from Neutron Spectrometer (bottom) Count rate over the South Pole is 5-10 times lower (blue region) – doubtless water presence Applied studies

17 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Analytical Investigations at the IBR-2 Reactor Project REGATA

18 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Priorities for the Future Scientific Program  Fundamental Physics:  Symmetries breaking in neutron induced reactions (KaTRIn & POLYANA projects, n-n scattering)  Fundamental properties of the neutron (neutron polarizability, n-e interaction)  Study of Polarized, Aligned and Unpolarized Fissioning Nuclei Using Polarized and Unpolarized Neutrons  Astrophysical aspects of neutron physics  UCN physics and quantum optics

19 Nuclear Physics PAC 20-th session April Nuclear Physics with Neutrons – Fundamental and applied investigations consideration of the theme /2004 Priorities for the Future Scientific Program  Applied Physics:  REGATA project  Planetary science with neutrons  COmbined COrrelative Spectroscopy for materials studies


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