Abstract List

   
Name   Muhammad ZAMAN Email   msz_khan@yahoo.com
Title   Monte Carlo simulation of photo-neutron yield and optimization of Photo-neutron spectrum
Abstract   Monte Carlo simulation have been performed using MCNPX code to study the optimization of photo-neutron yield for incident electron beam impinging on different target materials of varying thickness. The present results have been compared with previous published MCNPX results. Photo-neutrons per incident particles are calculated and compared. It is also noticed that photo-neutron yield can maximized by further increasing the thickness of the target. Further, at higher electron beam energy heat gradient in the target decreases, which facilitates easier heat removal from the target. This can help in developing a photo- neutron source based on electron LINAC by choosing appropriate electron beam energy and target thickness to optimize the neutron flux for ADS, transmutation studies and as high energy neutron source etc. Photo-neutron yield for different targets, optimum target thickness and photo-neutron energy spectrum and heat deposition is presented. Another Monte Carlo study is done for the Pohang Neutron Facility based on an electron LINAC operated for total neutron cross section measurements by using the pulsed neutrons produced in a water-cooled Ta-target with a water moderator. The photo-neutrons produced in the water-cooled Ta-target system is investigated, and the results were checked with the experimental values and pervious MCNP published results. The optimum conditions of the target system and the experimental setup to maximize the thermal neutron production were investigated.

Name   Kiyoshi Kato Email   kato@nucl.sci.hokudai.ac.jp
Title   Developments of Asian Nuclear Data Collaborations
Abstract   In Asian countries, nuclear science and physics have been remarkably developed and importance of nuclear data has also been increased rapidly. Concerning nuclear data, new experimental facilities have been constructed, and a large amount of experimental data has been produced in Asian region. Use and application of nuclear data are desired and extended widely. For this situation, it is necessary and important to develop collaborations of nuclear data activities in Asian countries. We have many opportunities discuss the Asian collaborations, and this workshop is also one of such good opportunities for the discussions on the international collaboration of the nuclear data network. This workshop in Korea is the third meeting of this series started at 2010. I would like to present my dream and ideas on the subjects of meetings of the series to develop the Asian collaborations.

Name   Naohiko Otuka Email   n.otsuka@iaea.org
Title   Asian Collaboration in Nuclear Reaction Data Measurements and Compilation
Abstract   EXFOR entries compiling data measured in Asian countries and submitted to the IAEA Nuclear Data Section will be analysed to discuss the trends of Asian collaboration in the nuclear reaction data measurement field. A new Malaysia-Japan-IAEA collaboration on deuteron-induced activation cross section measurements at the RIKEN Nishina Centre will be also introduced. Finally recent improvements in compilation process of Indian EXFOR entries done in collaboration with NDPCI (Mizolam Univ.) will be briefly mentioned.

Name   Kohsuke Tsubakihara Email   tsubaki@nucl.sci.hokudai.ac.jp
Title   Compilation tools of JCPRG
Abstract   JCPRG has developed some tools to compile nuclear reaction data. In this presentation, I will briefly report specific features of them and a new approach to XML database to you.

Name   Furutachi Naoya Email   furutati@nucl.sci.hokudai.ac.jp
Title   Current status of nuclear reaction data compilation activities at JCPRG
Abstract   JCPRG has compiled domestic nuclear reaction data, and provided the compiled data to nuclear data users. We compiles the nuclear reaction data obtained at Japanese facilities from 20-30 papers published every year and old papers. Compiled nuclear reactions data have been provided through our own database NRDF as same as the international database EXFOR. Adding to that, we have converted the old NRDF entries to EXFOR entries. Recently, the experiment at RIKEN RIBF facility started on a full scale, and the most advanced nuclear reaction data using radioactive beam has been obtaining. JCPRG is advancing the compilation of these nuclear reaction data, and discussing how to compile them nicely within EXFOR format. The current status of these nuclear reaction data compilation activities at JCPRG is reported.

Name   Pham Ngoc Son Email   pnson.nri@gmail.com
Title   Experimental Nuclear Data Activities in Vietnam
Abstract   In the resent years, the experimental nuclear data researches in Vietnam are mainly focusing on measurement of neutron capture cross section and nuclear structure data. The former activities are based on activation method using filtered neutron beams at the Dalat research reactor, which is expected to contribute high precise neutron capture cross section data. The latter activities are based on the summation of amplitudes of coinciding pulses method by measuring the neutron capture prompt gamma-rays on a thermal neutron beam; the new information on energy levels and level density is expected to be observed by this experimental technique. This report represents the current progress of experimental nuclear data activities at the Dalat research reactor including neutron capture cross section and nuclear structure data measurements, development of neutron facilities for research of nuclear data, national projects on nuclear data, and international collaborations.

Name   Lalremruata Bawitlung Email   marema08@gmail.com
Title   Nuclear Data Activities at Mizoram University
Abstract   One of the important databases distributed by IAEA-Nuclear Data Section (IAEA-NDS) through its website mirrored in India at the BARC site ( http://www-nds.indcentre.org.in ), is EXFOR, which is the compilation of published experimental nuclear reaction data for incident neutrons, gammas and charged particles on various targets. BARC has already initiated this EXFOR activity since 2006 with inputs from BARC (e.g., RPDD, NPD, RCD etc.) and other Indian institutions including universities. The NDPCI within DAE-BRNS as a project has endorsed the recommendations of the International Nuclear Reaction Data Centre network (IAEA-NRDC-2008) and conducted many phenomenally successful training workshops on EXFOR and also engaged on a regular basis with Universities across the country. Recently, nuclear data compilation into EXFOR format, reviewing of the Indian EXFOR entry prepared by the Indian compilers from different universities and research centers within India, and its subsequent submission to IAEA through NDPCI has been initiated in our Institute. The present activity as well as the future plans in this regard will be discussed. Results of few activation cross section measurements and compilation into EXFOR, and few important points observed through the inter-comparison of our data and previously reported data available in EXFOR database will also be discussed.

Name   Suren Davaa Email   davaa@num.edu.mn
Title   Present Status of Nuclear Data Studies in Mongolia
Abstract   Present Status of Nuclear Data Studies in Mongolia S.Davaa and G.Khuukhenkhuu Nuclear Research Center National University of Mongolia Nuclear data studies in Mongolia have been performed since the establishment of the Joint Institute for Nuclear Research (JINR) in Dubna, Russia (1956), of which Mongolia is a member state. Up to now studies of nuclear spectroscopy, nuclear reactions and neutron physics are conducted in international cooperation with JINR and other institutes such as Peking University of the P.R.China, University of Lodz, Poland and Hokkaido University, Japan. Our researchers and their collaboratorshave observed several new isotopes and studied decay of numerous nuclides (determined life time, decay energy, spin, parity, magnetic moment of the ground and excited states). The study of nuclear reactions induced by neutrons, charged particles, heavy ions and gamma-rays were carried out. Cross-sections and angular distributions of the neutron nuclear reactions for wide energy range and broad mass number of target nuclei were determined.The nuclear reaction mechanisms of heavy ion, charged particle and gamma-rayinduced nuclear reactions were studied Some of our staff are studying nuclear data and evaluation at the JINR (Russia), North Carolina University (USA), University of Guelph (Canada) and Hokkaido University (Japan). These opportunities and Asian nuclear reaction databasedevelopment workshops will be a good possibility for our nuclear data research activity.

Name   J. Yoo Email   jgyoo@kaeri.re.kr
Title   On Microscopic Description of Light Nuclear Scattering
Abstract    

Name   Sung-Chul YANG Email   scyang@kaeri.re.kr
Title   The EXFOR compilation activity of KAERI/NDC
Abstract   KAERI/NDC has constructed the EXFOR database in Korea since 2009. As of 2012, 20 of the total 33 entries were entered at the EXFOR and the others were compiled or were reserved. These entries include mainly an experimental data for neutron total cross section, isomeric-yield ratio induced by bresmsstrahlung, photo-fission yields and production cross section by proton induced reactions.

Name   Young-Sik Cho Email   yscho@kaeri.re.kr
Title   Nuclear data evaluation activities at KAERI
Abstract   Current status of nuclear data evaluation activities at KAERI is presented.

Name   Vidya Devi Email   vidya@nucl.sci.hokudai.ac.jp
Title   Description of even-even triaxial nuclei in the frame work of asymmetric rotor model and the interacting boon approximation
Abstract   The asymmetric rotor model and the interacting boson approximation are alternatively used to describe the $g-$, $beta$ and $gamma$-band of the neutron deficient as well as deformed nuclei. The ARM and IBA are also applied to the isotopes of $^{188-192}$Os and $^{228-230}$Th. These two models are compared with respect their underlying assumptions and E2 branching ratio. The parameters determining the energies as well as those defining the transition operator are to be determined by the fitting procedure. Results are in good agreement with the corresponding experimental data. The experimental energy staggering in $gamma$ bands of these isotopes exhibits distinct patterns as a function of angular momentum that are typical of well-deformed structural benchmarks: $gamma$-soft for nuclei situated between a vibrator and a deformed $gamma$-soft structure, axially symmetric for those between a vibrator and a rigid rotor and triaxial $gamma$-rigid for nuclei between vibrator and a rigid triaxial rotor. These results are also compared with coherent state model. A possible connection between the two formalism is pointed out.

Name   Ichinkhorloo Dagvadorj Email   ichinkhorloo@nucl.sci.hokudai.ac.jp
Title   Evaluation of Nuclear Reactions in JCPRG: Analysis of 6,7Li+n reaction
Abstract   The 6,7Li + n reactions are important not only from the basic interest but also from the application point of view. In this study, cross sections 6Li + n and 7Li + n reactions are evaluated by using the Continuum Discretized Coupled Channel method (CDCC) [1], in which we adopt microscopic wave functions of 6,7Li with the α + d and t + α model [2]. We calculate cross section for the 6,7Li + n scattering with the complex Jeukenne-Lejeune-Mahaux effective nucleon-nucleon (JLM) interaction [3]. The calculated elastic and inelastic cross sections and continuum neutron spectra for 6,7Li breakup states show compared with the experimental data [4-7] between 7 - 24 MeV incident neutron energy regions. The calculated inelastic cross sections of the resonance states and neutron spectra for 6,7Li breakup into continuum states are in good agreement with experimental data. From those results, we conclude that the CDCC method with the JLM is very powerful for the data evaluation of the 6,7Li(n,n′) reactions.

Name   SYLVIA BADWAR Email   sylviabadwar24@gmail.com
Title   Experiences And Lessons Learnt In EXFOR Compilation
Abstract   This EXFOR compilation is in a nascent stage in the Indian context, it is the outcome of the initiative and efforts undertaken by Nuclear Data Physics Centre Of India(NDPCI). We have made 9 EXFOR entries of the published papers mainly based on the experiments conducted in the various Indian laboratories. The entries made are D6095, D6103, D6114, D6112, D6149, D6166, D6111, D6083, D6129. Some of which have already been accepted in the EXFOR database. The various difficulties and lessons learnt while compiling the above entries are highlighted in the power point presentation.

Name   REETUPARNA GHOSH Email   reetuparna.ghosh@gmail.com
Title   EXPERIENCES AND LESSONS LEARNT IN EXFOR COMPILATION(Part-2)
Abstract   While making the EXFOR entries, innumerable challenges were encountered. Since, each entry is unique; there was no overlapping between any two of them. For example, we had confusion about non-linear axis while running the digitized file; the absence of digitized file while running the SRC file; use of multipliers in the graph; the judicious use of ERX and ERY. Ultimately, we could overcome all the difficulties and finally get the required data. In the whole process we have learnt many additional techniques which were not mentioned specifically in the EXFOR manual. Besides, we acquired the knowledge about the details of different experiments.

Name   Odsuren Myagmarjav Email   odsuren@nucl.sci.hokudai.ac.jp
Title   Analysis of two body resonances in the complex scaled orthogonal condition model
Abstract   During the last four decades a resonance problem has emerged as a crucial and useful research area in nuclear structure. Several extensions of the basic problem have been studied, where, for instance, a unified treatment of scattering and cluster structure has been developed. Furthermore, the interaction between composite particles must be clarified and the role of the Pauli exclusion principle in scattering and reaction processes must be taken into account. The complex scaling method (CSM) [1-2] and the orthogonal condition model (OCM) [3] have been successfully utilized to describe the resonance states of light and middle mass nuclei. Although many problems have been solved so far, but further investigations are required still. In this study, the complex scaled orthogonal condition model (CSOCM) [4] is applied to the light nuclei including two alpha-clusters and alpha-neutron systems. The main objective of our study is to investigate the resonance states of 9Be by using CSOCM for a three-cluster system. Certainly understanding of α+α and α+n subsystems is needed in order to perform calculations of an α+α+n system. In particular, for the α+α+n system, it is important to take into account the Pauli blocking for both the α+α and α+n interactions. In this work we examine two types of basis functions; Gaussian and harmonic oscillator wave functions. In these basis functions, the treatments of the Pauli principle are different; an effective Pauli-potential and the Pauli-allowed states are used in former and latter respectively. These treatments of the Pauli principle are expected to give the same results for two-body system, but different ones for three-body-systems. As an α+α potential, we also use the folding potential of the effective nuclear interaction by Schmid and Wildermuth [5] and the Coulomb force. As the α+n interaction, we employ an effective potential constructed by Kanada, Kaneko, Nagata and Nomoto [6] based on their microscopic theory, which includes the central, tensor and spin-orbit parts. The low-lying states 0+, 2+ and 4+ of 8Be, and 3/2- and 1/2- of 5He are calculated, respectively. The results indicate a good agreement with experimental data. However, the results of calculations for 8Be with the harmonic oscillator basis functions show that we need to employ a very large size basis functions in order to converged resonance energies and widths. References 1. Y.K.Ho, Phys. Rep.99,1(1983) 2. S.Aoyama, T.Myo, K.Katō and K.Ikeda, Prog. Theor. Phys. 116, 1(2006) 3. S.Saito, Prog. Theor. Phys. 40, 893(1968); 41, 705 (1969); Prog. Theor. Phys. Suppl. 62, 11(1977) 4. A.T.Kuruppa and K.Katō, Prog. Theor. Phys. 84, 1145(1990) E.W.Schmid and K.Wildermuth, Nucl. Phys. 26, 463(1961) 5. H.Kanada, T.Kaneko, S.Nagata and M.Nomoto, Prog. Theor. Phys. 61, 1327 (1979)

Name   Ayano Makinaga Email   makinaga@nucl.sci.hokudai.ac.jp
Title   Activities on the neutron and photon experiments at Hokkaido University
Abstract   Nuclear data measurement is of greatest interest in the nuclear power field, such as nuclear transmutation techniques by using accelerator-driven system(ADS), as well as nuclear astrophysics. We report on the activities of neutron and photon experiments by using the 45 MeV pulsed electron linear accelerator at Hokkaido University. For the neutron experiment, we have been developed the neutron time of flight (n-TOF) system for fast neutrons. Pulsed photo neutron source was produced by hitting Pb target with the electron beam of 24MeV,and monitored by a liquid scintillation detector system. We also report on the current status of the measurement of photonuclear reaction data with activation techniques by using a bremsstrahlung photon beam. Finally, future plans of Asian nuclear data measurement collaborations are discussed.

Name   Masayuki Aikawa Email   aikawa@sci.hokudai.ac.jp
Title   Nuclear Reaction Data Compilation and Evaluation: A Case of Hokkaido University Nuclear Reaction Data Centre (JCPRG)
Abstract   Nuclear reaction data are essential for the development of the basic nuclear science, as well as applications such as nuclear engineering and radiation therapy. It is thus very important to compile experimental nuclear reaction data and to construct their database. The Hokkaido University Nuclear Reaction Data Centre (JCPRG) compiles domestic nuclear reaction data and provides the compiled data to nuclear data users. JCPRG has developed its own database NRDF since 1974, and it also contributes to the international nuclear reaction database EXFOR through the international network of Nuclear Reaction Data Centres under the auspices of the International Atomic Energy Agency. The compiled nuclear reaction data are available on the online search systems of NRDF and EXFOR, respectively. We are also motivated to construct a database of astrophysical nuclear reaction data, which are theoretically evaluated. We report current status of our activities in detail.

Name   Nurgali Takibayev Email   takibayev@gmail.com
Title   Al-Farabi University Data Center for Nuclear Physics and Astrophysics
Abstract   In May 2012 the new Nuclear Data Center was established at the Al-Farabi Kazakh National University. The organization of the new NDC has been supported by Hokkaido University, Institute of Nuclear Physics of National Nuclear Center of Republic of Kazakhstan, Institute of Nuclear Physics of Uzbekistan Academy of Sciences, Gumilev Eurasian University (Astana, Kazakhstan) and Fesenkov Astrophysics Institute of Cosmic National Agency of Kazakhstan. Future plans for the NDC, our goals and objectives of international cooperation will be presented at the meeting.