| 总结: | 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.
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