Gj. Cuello et al., TOTAL NEUTRON CROSS-SECTION OF TEFLON BETWEEN 0.00038-EV AND 590-EV, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 357(2-3), 1995, pp. 519-523
The neutron total cross section of Teflon has been measured for energi
es between 3.8 X 10(-4) eV and 5.9 X 10(2) eV by the transmission meth
od with pulsed neutron time-of-flight techniques. In order to cover th
at wide energy range, two independent measurements were performed on s
amples 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 so
me inhomogeneities in the sample material, the transmission data were
normalized using the best available values of the scattering lengths a
nd incoherent cross sections for carbon and fluorine.