Total neutron cross section of Teflon between 0.00038 and 590 eV

The neutron total cross section of Teflon has been measured for energies between 3.8 × 10−4 eV and 5.9 × 102 eV by the transmission method with pulsed neutron time-of-flight techniques. In order to cover that wide energy range, two independent measurements were performed on samples with different thicknesses and employing as neutron moderator a conventional polyethylene slab for the epithermal region and a liquid nitrogen cooled paraffin block for the cold/thermal region. Due to some inhomogeneities in the sample material, the transmission data were normalized using the best available values of the scattering lengths and incoherent cross sections for carbon and fluorine.