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Measurement on the thermal neutron capture cross section of w-180

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arxiv 0704.3042 v2 pith:X5RX2NYR submitted 2007-04-23 nucl-ex

classification nucl-ex
keywords crosssectioncapturemeasuredneutronthermalw-180barn
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abstract

We have measured the thermal neutron capture cross section for w-180 nucleus. There is only one previous data on this cross section with a value of 30 $^{+300%}_{-100%}$ barn. To consider w-181 as a low energy neutrino source, the thermal neutron capture cross section should be measured more precisely to estimate the production rate of w-181 inside a nuclear reactor. We measured the cross section of w-180 with a natural tungsten foil and obtained a new value of 21.9 $\pm$ 2.5 barn

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