Statistical uncertainty in quantitative neutron radiography
ETH Zürich, Institute for Particle Physics, CH-8093
2 Paul Scherrer Institute, CH-5232 Villigen, Switzerland
Revised: 7 March 2017
Accepted: 14 March 2017
Published online: 28 April 2017
We demonstrate a novel procedure to calibrate neutron detection systems commonly used in standard neutron radiography. This calibration allows determining the uncertainties due to Poisson-like neutron counting statistics for each individual pixel of a radiographic image. The obtained statistical errors are necessary in order to perform a correct quantitative analysis. This fast and convenient method is applied to data measured at the cold neutron radiography facility ICON at the Paul Scherrer Institute. Moreover, from the results the effective neutron flux at the beam line is determined.
© EDP Sciences, 2017