1. Members of the PAC for Nuclear Physics Independent members Christian Beck - IPHC, Strasbourg, France Jan Dobeš- NPI, Řež, Czech Republic Yuri Gaponov- RRC «Kurchatov Iinstitute», Moscow,Russia Walter Greiner- FIAS, Frankfurt am Main,Germany Nathalia Janeva- INRNE, Sofia, Bulgaria Sigurd Hofmann- GSI, Darmstadt, Germany Vladimir Ostashko - INR,Kiev, Ukraine Claude Petitjean- PSI, Villigen, Switzerland Adam Sobiczewski - INS, Warsaw, Poland Emanuele Vardaci- UN, Naples, Italy

2. Ex officio members from JINR Sergey Dmitriev- Director, FLNR Mikhail Itkis- Vice-Director, JINR Aloiz Kovalik - Deputy Director, DLNP Valeriy Shvetsov - Deputy Director, FLNP Nikolay Skobelev - Scientific Secretary of the PAC Victor Voronov - Director, BLTP Petr Zrelov - Deputy Director, LIT

3. Programme Advisory Committee for Nuclear Physics 30th meeting, 22–23 June 2009 You have the Programme of our meeting Are there any questions or feedback? If there are no remarks, then we accept it.

4. Implementation of the recommendations of the previous PAC meeting Walter Greiner

5. Our recommendations were presented at the 105 session of the JINR Scientific Council. The Scientific Council concurs with the recommendations made by the PACs at their January 2009 meetings as reported at this session by Professors J. Nassalski, W. Greiner, and V. Kantser. The Scientific Council recognizes the significant scientific accomplishments of JINR scientists in the fields of particle physics, nuclear physics, and condensed matter physics, as well as the progress in the areas of information technology, innovative developments and educational activities.

6. About Implementation of the recommendations of the previous PAC meeting Recommendations on the themes and projects to be completed in 2009 and proposals of new themes

7. Investigation of Fundamental Interactions in Nuclei at Low Energies Recommendation 1. The PAC recommends completion of the theme “Investigation of Fundamental Interactions in Nuclei at Low Energies” by the end of the year 2009. Recommendation 2. The PAC recommends continuations of these programmes within the new theme “Non-Accelerator Neutrino Physics and Astrophysics” (projects NEMO, GERDA-MAJORANA, GEMMA, EDELWEISS-II, BAIKAL, and LESI) in the years 2010–2012 with highest priority

8. Nucleus and Particle Interactions at Intermediate Energies Recommendation: The РАС recommends completion of this theme by the end of the year 2009. New theme “Physics of Light Mesons” (Projects: SPRING, PEN-MEG, PAINUC) Recommendation. The PAC recommends approval of the new theme “Physics of Light Mesons” for the years 2010– 2012 with first priority. These new themes are under consideration by the JINR Directorate. All projects must be considered now in more detail

9. Start-up of the IREN facility Recommendation. The PAC recommends that FLNP and VBLHE complete as soon as possible the precommissioning operations at the IREN facility and start the first experiments in the second half of this year. The PAC also recommends that the JINR Directorate provides funding for the development of the IREN Phase I stage by stage within the request by FLNP during 2010–2016 to be annually adjusted depending on the achieved progress in the realization of the research. (Сomment Valeriy Shvetsov )

10. IREN first stage brief progress report for the period February- June 2009 At present we achieved stable operation of the facility, close to the designed (2.8 A) peak current of the accelerated electrons on the target (2.5 A), pulse width 100-200 ns, repetition rate up to 40 Hz, electron energy 25-30 MeV. Results of the neutron flux density experimental measurements during reported period are shown at Figure 1 in comparison with calculated flux density for 50 MeV electron energy, 50 Hz repetition rate, 2.8 A peak current and 50 MeV average energy. First experiments on total and capture cross sections measurements are under preparation, experimental spectra are shown at Figures 2 and 3.

11. Figure 1: calculated (upper curve) and experimentally measure neutron flux densities at 10 m flight path of the IREN facility.

12. First experiments on total and capture cross sections measurements are under preparation, experimental spectra are shown at Figures 2 and 3. Figure 2: March 11 2009, preparation for the experiments on total cross sections measurements. Neutron transmission through Ta and In foils. Flight path: 9.5 m for SHVEPS detector and 9.03 m for SNM-16 detector. Exposition 20 min. Peak current of the electrons on the target 0.5-0.8 A. Repetition rate 5 Hz. Electron energy 20-25 MeV. Time channel width 200 ns. SHVEPS detector has higher efficiency than SNM-16, but larger dead time – so we don’t see data from SHVEPS detector at energies higher than 10 eV.

13. Figure 3: May 25 2009, preparation for the experiments on capture cross sections measurements. Neutron capture in Ta foil. Capture gammas are registered by stylbene (lower line) or NE-213 (upper line) detector. Flight path: 8.5 m. Exposition 20 min (NE- 213) and 45 min (stylbene). Peak current of the electrons on the target 2.0 A. Repetition rate 20 Hz. Electron energy 25-30 MeV. Time channel width 640 ns.

14. The Plan for the Development of JINR for 2010–2016 See the draft of “ SEVEN-YEAR PLAN FOR THE DEVELOPMENT OF JINR 2010–2016 (SCIENTIFIC RESEARCH SECTION)”. DLNP The PAC heard with interest the proposals of the Dzhelepov Laboratory of Nuclear Problems for the Plan of the Development of JINR for 2010–2016. The PAC highly appreciates the results obtained at DLNP and stresses the leading role of the DLNP in the field of experimental neutrino physics at JINR. PAC supports the continuation of this highly ambitious neutrino and astrophysics programme of DLNP.

15. The Scientific Council highly appreciates the scientific results in non-accelerator physics produced by DLNP scientists and recognizes the leading role of this laboratory in the neutrino physics research at JINR. The Scientific Council looks forward to a presentation at its next meeting of the leadership role the JINR scientists are playing in various neutrino experiments and about potential streamlining of the programme in the event of constrained resources.

16. FLNR The PAC discussed in detail the prospects for the development of the experimental base for heavy-ion physics at the Flerov Laboratory of Nuclear Reactions. The proposed plan includes ambitious projects, such as DRIBs-III, construction of a new accelerator which has to provide intense heavy-ion beams for the synthesis of superheavy elements, as well as the creation of new physics facilities. The PAC endorses the proposed plan and supports the efforts of the Flerov Laboratory aimed at the development and extension of the experimental base.The PAC recommends elaborating the final design and presenting the details at the next meeting.

17. Today you will be acquainted with the scientific programme and development of the experimental base for heavy-ion physics at the Flerov Laboratory of Nuclear Reactions for the next 5 years. Also, you can find the details of the prospects for the development of the experimental base for heavy- ion physics at the Flerov Laboratory of Nuclear Reaction in the draft of the “SEVEN-YEAR PLAN FOR THE DEVELOPMENT OF JINR 2010–2016 (SCIENTIFIC RESEARCH SECTION”.

18. LIT The PAC recognizes that LIT serves wide ranges of computational needs and purposes inside and outside JINR. The PAC also appreciates the LIT activities in the advanced educational programmes and welcomes a stronger involvement in the GRID computational environment. In order to make the results of the valuable work performed at LIT more easily accessible to the scientific community, the PAC recommends the construction of an environment of network services devoted to this purpose. (Comment Victor Ivanov)

19. LIT Access from the main JINR website to informational materials and the results of valuable work performed at LIT has been modernized. The new materials which reflect the current activity of the Laboratory have been deployed (section Research in Progress). Access became simpler to the sections that contains a description of the LIT resources (CICC, program library JINRLIB etc.). Organized was access to various services (server of generators HEPWEB, CCIC and RDIG/LCG monitoring systems), to the news section (news of the central information computing complex, seminars, conferences, etc.), to publications, reports, etc.

20. Common Issues The Scientific Council urges the PAC to concentrate their efforts on further detailed evaluation of the seven-year plan which should be recommended for the final approval by the Committee of Plenipotentiaries in November 2009.

21. The Scientific Council notes that the Committee of Plenipotentiaries also reiterated its previous decision to address the governments of the Member States with a proposal to make provisions for an increase of the JINR budget with a view to creating an in-house facility base attractive to the Member States and the world scientific community. These facilities will include the Nuclotron-М and NICA/MPD, a third-generation DRIBs facility (DRIBs-III), and a complex of state-of-the-art neutron spectrometers for the modernized reactor IBR-2M.

22. Research programme at the LEPTA facility Recommendation. The PAC recommends completion of the construction of the LEPTA facility and preparation of first experiments with Ortho-Positronium in-flight. (Igor Meshkov comment)

23. LEPTA Project Progress (January 26 – June 8, 2009) The LEPTA project development was concentrated during on the following problems. Improvement of magnetic field homogeneity and increase of circulating electron life time. The correction coils fabricated and placed at junction of the short and long toroidal section allowed us to increase the electron lifetime at electron energy of 8 keV from 5 msec (correction is OFF) to 26 msec (correction is ON). That is an evident proof of the magnetic field inhomogeneity influence. Then of correction coils for all 6 junction points were fabricated and magnetic field measurement performed. Application of correction coils decreased the field inhomogeneity amplitude from  B  60 G to  B  10 G at average field value B = 400 G. The procedure has been finished by the end of May. Positron beam diagnostics development. Preparation for work with circulating positrons required insertion of positron detector in the vacuum chamber of the ring. Designing of the detector has been finished in March and the necessary manufacturing of the detector chamber has been finished by the end of May. Electron cooling system completion. The support system for electron collector has been manufactured in April. Mounting of the collector will be performed by the end of June. After completion of points 1 – 3 the ring was assembled, pumped out and tests of the magnetic system with circulating electron beam is in progress presently. Commissioning of electron cooling system (stationary single pass electron beam) is planned by the beginning of July..

24. Positron injector preparation. Radiation shielding of the 22Na positron source has been manufactured and mounted. All the radiation safety formalities will be completed by the middle of June. Then the injector will be tested with the source of 25 mCi activity. Positron transfer channel. Designing of the channel for positron transport from the injector into the ring is close to be completed and working drawings will be presented to the workshop “Atom” by the end of June. The JINR Directorate defined a grant for manufacturing of the channel elements by the workshop “Atom”. The manufacturing technology and procedure has been agreed with the workshop and the works are planned to be completed by September 10, 2009. Fulfillment of all points 1-5 will allow starting positron injection into the ring and the following experiments according the project.

25. Poster session Recommendation. The PAC was particularly pleased with the presentations of new results and proposals by young scientists in the field of nuclear physics research. This type of presentations should be continued in the future. Now The young scientists from FLNR have also presented 9 proposals at this session.

26. Thank you for your attention !