https://repository.auw.edu.bd/handle/123456789/729 2026-06-09T23:22:32Z https://repository.auw.edu.bd/handle/123456789/945 ACTIVITIES ON THE NUCLEAR DATA MEASUREMENT AT THE POHANG NEUTRON FACILITY BASED ON ELECTRON LINAC Meaze, AKM Moinul Haque We report the present status of the Pohang Neutron Facility which consists of an electron linear accelerator, a water-cooled Ta target, and a 12-m time-of-flight path. We measured the neutron total cross-sections in the neutron energy range from 0.1 eV to few hundreds eV by using the neutron time-of-flight method. A 6 LiZnS(Ag) glass scintillator was used as a neutron detector. The neutron flight path from the water-cooled Ta target to the neutron detector was 12.1 m. The background level was determined by using notch-filters of Co, In, Ta, and Cd sheets. In order to reduce the gamma rays from bremsstrahlung and those from neutron capture, we employed a neutron-gamma separation system based on their different pulse shapes. The present measurements of Ta, Hf, Ag, and Mo samples are in general agreement with the evaluated data in ENDF/B-VI. 2007-01-01T00:00:00Z https://repository.auw.edu.bd/handle/123456789/944 Evaluations of Resonance P aluations of Resonance Parameters and Resonance Integr ameters and Resonance Integral of Tungsten Meaze, AKM Moinul Haque I present evaluated values of resonance parameters and resonance integral for natural tungsten on the basis of experimental transmissions data obtained at the Pohang Neutron Facility (PNF), Republic of Korea. Resonance parameters were obtained by using the Bayesian code SAMMY. The output values of SAMMY were used to evaluate the resonance integral for the capture cross-section. 2007-01-01T00:00:00Z https://repository.auw.edu.bd/handle/123456789/943 Neutron total cross-sections and resonance parameters of Mo and Ta Meaze, AKM Moinul Haque Experimental results of transmissions for the samples of natural molybde- num with thickness 0.0192 atoms/barn and for the four samples of natural tantalum with thickness 0.0222, 0.0111, 0.0055 and 0.0025 atoms/barn are presented in this work. Measurements were carried out at the Pohang Neutron Facility which consists of a 100 MeV Linac, water-cooled tantalum target, and 12 m flight path length. Effective total cross-sections were extracted from the transmission data, and resonance parameters were obtained by using the code SAMMY. The present measurements were compared with other measurements and with the evaluated nuclear data file ENDF/B-VI.8. 2007-01-01T00:00:00Z