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| THPMA114 |
Activities on the Nuclear Data Measurement at the Pohang Neutron Facility Based on Electron Linac
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- G. N. Kim
Kyungpook National University, Daegu
- M.-H. Cho, I. S. Ko, W. Namkung
POSTECH, Pohang, Kyungbuk
- H.-S. Kang, Y. D. Oh
PAL, Pohang, Kyungbuk
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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 6LiZnS(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. The resonance parameters were extracted from the transmission data from the SAMMY fitting and compared with the previous ones.
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